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    {
        "id": "Kopp-1994-EMF",
        "type_id": "techreport",
        "tu_id": null,
        "repositum_id": null,
        "title": "Efficient 3x3 Median Filter Computations",
        "date": "1994-12",
        "abstract": "This Paper presents an efficient algorithm for\nmedian filtering with a 3x3 filter kernel with only\nabout 9 comparisons per pixel using spatial coherence\nbetween neighbouring filter computations. The basic\nalgorithm calculates two medians in one step and reuses\nsorted slices of three vertical neighbouring pixels.\nAn extension of this algorithm for 2D spatial coherence\nis also examined, which calculates four medians per step.\nEven though theoretical results would yield 5%\nperformance increase compared to the basic algorithm,\nexperimental results showed less significant increase or\n                even worse performance dependent on the hardware.",
        "authors_et_al": false,
        "substitute": null,
        "main_image": null,
        "sync_repositum_override": null,
        "repositum_presentation_id": null,
        "authors": [
            413,
            190
        ],
        "number": "TR-186-2-94-18",
        "pages_from": "1",
        "pages_to": "4",
        "research_areas": [],
        "keywords": [
            "image processing",
            "filtering",
            "3x3 median kernel",
            "spatial coherence"
        ],
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        "url": "https://www.cg.tuwien.ac.at/research/publications/1994/Kopp-1994-EMF/",
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    },
    {
        "id": "Traxler-1994-RRR",
        "type_id": "techreport",
        "tu_id": null,
        "repositum_id": null,
        "title": "Representation and Realistic Rendering of Natural Phenomena\n                with Cyclic CSG-graphs",
        "date": "1994-12",
        "abstract": "A method for ray tracing of recursive objects defined by\nparametric rewriting systems is introduced. Constructive\nSolid Geometry (CSG) is used as underlying object\nrepresentation. Thus the formal languages of our rewriting\nsystems are subsets of the infinite set of CSG expressions.\nInstead of deriving such expressions to build up large CSG\ntrees we translate the systems into cyclic CSG graphs, which\ncan be used directly as an object representation for ray\ntracing. For this purpose the CSG concept is extended by\nthree new nodes. Selection nodes join all the rules for one\ngrammar symbol, control the flow by selecting proper rules,\nand are end-points of cyclic edges. Transformation nodes map\nthe rays in affine space. Calculation nodes evaluate a finite\nset of arithmetic expressions to modify global parameters,\nwhich effect flow control and transformations. The CSG\ngraphs introduced here are a very compact data structure,\nmuch like the describing data set. This property meets our\nintention to avoid both restrictions of the complexity of\nthe scenes by computer memory and the approximation accuracy\n\t\tof objects.",
        "authors_et_al": false,
        "substitute": null,
        "main_image": null,
        "sync_repositum_override": null,
        "repositum_presentation_id": null,
        "authors": [
            249,
            237
        ],
        "number": "TR-186-2-94-19",
        "pages_from": "1",
        "pages_to": "19",
        "research_areas": [],
        "keywords": [
            "L-Systems",
            "CSG-graphs",
            "Ray Tracing",
            "Natural Phenomena",
            "Fractals"
        ],
        "weblinks": [],
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        "__class": "Publication"
    },
    {
        "id": "Purgathofer-1994-FRD",
        "type_id": "techreport",
        "tu_id": null,
        "repositum_id": null,
        "title": "Forced Random Dithering: Improved Threshold\n                Matrices for Ordered Dithering",
        "date": "1994-11",
        "abstract": "This paper examines the possibilities of improving\nhalftoning techniques using dispersed dots. This\ncorresponds to finding micro-dot distributions that\napproximate the intensity levels that have to be\nrendered. A widely used halftoning method is ordered\ndithering, which uses a threshold matrix to decide\nif a micro-dot should be set in the output image. A\nway to generate improved threshold matrices for\nordered dithering will be introduced that avoids\nunwanted low-frequency portions without introducing\ntoo much random noise into the rendered image. Since\nthe presented method produces images of high quality\nit is ideally suited for output generation in high-end\n                image processing systems.",
        "authors_et_al": false,
        "substitute": null,
        "main_image": null,
        "sync_repositum_override": null,
        "repositum_presentation_id": null,
        "authors": [
            190,
            216,
            441
        ],
        "number": "TR-186-2-94-15",
        "pages_from": "1",
        "pages_to": "5",
        "research_areas": [],
        "keywords": [
            "digital halftoning",
            "ordered dithering",
            "threshold matrix"
        ],
        "weblinks": [],
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        "url": "https://www.cg.tuwien.ac.at/research/publications/1994/Purgathofer-1994-FRD/",
        "__class": "Publication"
    },
    {
        "id": "Feda-1994-FPZ",
        "type_id": "techreport",
        "tu_id": null,
        "repositum_id": null,
        "title": "Fast Perspective Z-Buffer with Inverse Depths",
        "date": "1994-11",
        "abstract": "This paper presents a way to hold the depth\ninformation in Z-buffers, that allows fast\nincremental computation of Z-buffer depth values.\nThe main idea is to store the inverse depth with\neach pixel value. The incremental depth computation\ncan then be done with a single addition per pixel\n                in a scanline.",
        "authors_et_al": false,
        "substitute": null,
        "main_image": null,
        "sync_repositum_override": null,
        "repositum_presentation_id": null,
        "authors": [
            245,
            216,
            177
        ],
        "number": "TR-186-2-94-16",
        "pages_from": "1",
        "pages_to": "3",
        "research_areas": [],
        "keywords": [
            "z-buffer",
            "optimization",
            "rendering"
        ],
        "weblinks": [],
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        "url": "https://www.cg.tuwien.ac.at/research/publications/1994/Feda-1994-FPZ/",
        "__class": "Publication"
    },
    {
        "id": "purgathofer-1994-for",
        "type_id": "inproceedings",
        "tu_id": null,
        "repositum_id": null,
        "title": "Forced Random Dithering: Improved Threshold Matrices for Ordered Dithering",
        "date": "1994-11",
        "abstract": "",
        "authors_et_al": false,
        "substitute": null,
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        "repositum_presentation_id": null,
        "authors": [
            190,
            216,
            441
        ],
        "booktitle": "Proceedings  of 1st IEEE International Conference on Image Processing",
        "location": "Austin, Texas",
        "organization": "1st IEEE International Conference on Image Processing",
        "research_areas": [],
        "keywords": [],
        "weblinks": [],
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        "url": "https://www.cg.tuwien.ac.at/research/publications/1994/purgathofer-1994-for/",
        "__class": "Publication"
    },
    {
        "id": "Neumann-1994-SRM",
        "type_id": "techreport",
        "tu_id": null,
        "repositum_id": null,
        "title": "The Stochastic Ray Method for Radiosity",
        "date": "1994-11",
        "abstract": "THIS TECHNICAL REPORT IS OUTDATED AND HAS BEEN SUPERSEDED BY TR-186-2-95-3.\nThis paper presents an efficient radiosity\nalgorithm for highly complex scenes. The new\niteration method, which is based on the Stochastic\nShooting Method, uses ray tracing to implicitly\ncalculate form factors. The variance in the solution\nis reduced by using a self-correcting, stochastically\nconverging iteration formula. The new algorithm can\nbe easily extended to simulate various phenomena\nnormally not found in radiosity environments:\ntransparency, specular reflection and point\n                light-sources.",
        "authors_et_al": false,
        "substitute": null,
        "main_image": null,
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        "authors": [
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            190,
            216,
            232,
            439,
            245,
            440
        ],
        "number": "TR-186-2-94-17",
        "pages_from": "1",
        "pages_to": "13",
        "research_areas": [],
        "keywords": [
            ""
        ],
        "weblinks": [],
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        "url": "https://www.cg.tuwien.ac.at/research/publications/1994/Neumann-1994-SRM/",
        "__class": "Publication"
    },
    {
        "id": "Loeffelmann-1994-PSQ",
        "type_id": "techreport",
        "tu_id": null,
        "repositum_id": null,
        "title": "Parameterizing Superquadrics",
        "date": "1994-11",
        "abstract": "Superquadrics are well known and often used 3D\nsurface objects in computer graphics. They are used\nfor modelling parts of scenes that are then rendered\nusing photorealistic image synthesis algorithms (e.g.,\nray tracing).  For some techniques, like texturing,\nwhich are part of these rendering methods, the type\nof the parameterization of such a surface has to be\nchosen carefully and is not intuitively obvious at\nfirst sight. There are cases, where the straight\nforward extension of quadric parameterizations to\nsuperquadrics do not produce satisfying results. We\ntherefore investigate a number of different\nparameterizations in combination with the\ncorresponding formulas, and point out some\n                significant differences between them.",
        "authors_et_al": false,
        "substitute": null,
        "main_image": null,
        "sync_repositum_override": null,
        "repositum_presentation_id": null,
        "authors": [
            399,
            166
        ],
        "number": "TR-186-2-94-5",
        "pages_from": "1",
        "pages_to": "11",
        "research_areas": [],
        "keywords": [
            "parameterization",
            "quadrics",
            "superquadrics"
        ],
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        "url": "https://www.cg.tuwien.ac.at/research/publications/1994/Loeffelmann-1994-PSQ/",
        "__class": "Publication"
    },
    {
        "id": "ferschin-1994-comp",
        "type_id": "inproceedings",
        "tu_id": null,
        "repositum_id": null,
        "title": "A Comparision of Techniques for the Transformation of Radiosity Values to Monitor Colors",
        "date": "1994-11",
        "abstract": "",
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        "authors": [
            240,
            241,
            190
        ],
        "booktitle": "Proceedings of 1st IEEE International Conference on Image Processing",
        "location": "Austin, Texas",
        "note": "TALK: I. Tastl 16.11.1994",
        "research_areas": [],
        "keywords": [],
        "weblinks": [],
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        "url": "https://www.cg.tuwien.ac.at/research/publications/1994/ferschin-1994-comp/",
        "__class": "Publication"
    },
    {
        "id": "Kopp-1994-EFC",
        "type_id": "techreport",
        "tu_id": null,
        "repositum_id": null,
        "title": "Efficient filter computation with symmetric matrix kernels",
        "date": "1994-11",
        "abstract": "This paper presents an algorithm for filter calculations\nusing symmetric matrix kernels. This algorithm outperforms\ntraditional methods for kernels larger than or equal to 5x5\non machines based on RISC designs, where the time needed to\ncalculate an addition equals the time needed for a\nmultiplication. The algorithm is based on a decomposition of\nthe kernel matrix into several kernel matrices of decreasing\nsize, which can be computed very fast because of spatial\ncoherence. A comparison with traditional methods shows the\n                efficiency of the presented approach.",
        "authors_et_al": false,
        "substitute": null,
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        "authors": [
            413
        ],
        "number": "TR-186-2-94-4",
        "pages_from": "1",
        "pages_to": "9",
        "research_areas": [],
        "keywords": [
            "image processing",
            "anti-aliasing",
            "filtering",
            "symmetric matrix kernels",
            "spatial coherence"
        ],
        "weblinks": [],
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        "url": "https://www.cg.tuwien.ac.at/research/publications/1994/Kopp-1994-EFC/",
        "__class": "Publication"
    },
    {
        "id": "Tobler-1994-VEG",
        "type_id": "techreport",
        "tu_id": null,
        "repositum_id": null,
        "title": "VEGA: Vienna Environment for Graphics Applications",
        "date": "1994-11",
        "abstract": "This paper presents a software development environment\nfor rendering applications.  The main parts of this\nenvironment are a set of rules concerning the coding\nstyle, a set of tools to maintain source files and a\nnumber of libraries providing graphics functionality.\nThe environment has been succesfully used in a number\n                of internal projects, dealing with rendering.",
        "authors_et_al": false,
        "substitute": null,
        "main_image": null,
        "sync_repositum_override": null,
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        "authors": [
            216,
            399,
            190
        ],
        "number": "TR-186-2-94-6",
        "pages_from": "1",
        "pages_to": "6",
        "research_areas": [],
        "keywords": [
            "graphics library",
            "software engineering",
            "C++"
        ],
        "weblinks": [],
        "files": [
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                "description": null,
                "filetitle": "UNIX tools, part 1 (for VEGA). Usually already installed on modern UNIX systems.",
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                "filetitle": "UNIX tools, part 2 (for VEGA). Usually already installed on modern UNIX systems.",
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                "name": "Tobler-1994-VEG-UNIX tools, part 2 (for VEGA). Usually already installed on modern UNIX systems..zip",
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                "url": "https://www.cg.tuwien.ac.at/research/publications/1994/Tobler-1994-VEG/Tobler-1994-VEG-UNIX tools, part 2 (for VEGA). Usually already installed on modern UNIX systems..zip",
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                "description": null,
                "filetitle": "VEGA code",
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    },
    {
        "id": "Groeller-1994-MRN",
        "type_id": "techreport",
        "tu_id": null,
        "repositum_id": null,
        "title": "Modeling and Rendering of Nonlinear Iterated\n                Function Systems",
        "date": "1994-11",
        "abstract": "Iterated Function Systems are typically defined\nthrough sets of contractive linear transformations.\nThe theory of Iterated Function Systems is based on\nthe contractivity but not on the linearity of the\ndefining functions. Piecewise bilinear distortions\nof grids are used in this work to specify nonlinear\nIterated Function Systems. Nonlinear Iterated Functions\nSystems are characterized by a higher degree of\nflexibility and greater modeling capability than their\nlinear counterparts. Modeling and rendering aspects are\ndiscussed. Limit sets of 2D nonlinear Iterated Function\nSystems are represented by approximating point sets.\nLimit sets of 3D nonlinear Iterated Function Systems\nare either rendered by displaying approximating point\nsets (z-buffer approach) or through ray tracing an\napproximate set of 3D solids. Example images of a\n                test implementation are presented.",
        "authors_et_al": false,
        "substitute": null,
        "main_image": null,
        "sync_repositum_override": null,
        "repositum_presentation_id": null,
        "authors": [
            166
        ],
        "number": "TR-186-2-94-12",
        "pages_from": "1",
        "pages_to": "14",
        "research_areas": [],
        "keywords": [
            "Fractals",
            "Iterated Functions Systems",
            "nonlinear",
            "Modeling",
            "Rendering"
        ],
        "weblinks": [],
        "files": [
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        "url": "https://www.cg.tuwien.ac.at/research/publications/1994/Groeller-1994-MRN/",
        "__class": "Publication"
    },
    {
        "id": "groeller-1994-hyper",
        "type_id": "inproceedings",
        "tu_id": null,
        "repositum_id": null,
        "title": "Hyperrealistic image synthesis and manipulation",
        "date": "1994-11",
        "abstract": "",
        "authors_et_al": false,
        "substitute": null,
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        "authors": [
            166
        ],
        "booktitle": "Proceedings of the Symposium ",
        "location": "Bratislava, Slovakia",
        "note": "TALK: 3.11.1994",
        "organization": "Symposium ",
        "research_areas": [],
        "keywords": [],
        "weblinks": [],
        "files": [],
        "projects_workgroups": [],
        "url": "https://www.cg.tuwien.ac.at/research/publications/1994/groeller-1994-hyper/",
        "__class": "Publication"
    },
    {
        "id": "Groeller-1994-HIS",
        "type_id": "techreport",
        "tu_id": null,
        "repositum_id": null,
        "title": "Hyperrealistic Image Synthesis and Manipulation",
        "date": "1994-11",
        "abstract": "Computer graphics techniques allow the generation\nof realistic and hyperrealistic images. Some of\nthese techniques are discussed in this paper. Ray\ntracing and radiosity produce 2D images out of a 3D\nsynthetic object description. Two extensions of the\nray tracing technique (nonlinear ray tracing, extended\ncamera specification) are described. Finally image\nwarping and image morphing which manipulate 2D images\n                to produce modified 2D images is dealt with.",
        "authors_et_al": false,
        "substitute": null,
        "main_image": null,
        "sync_repositum_override": null,
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        "authors": [
            166
        ],
        "number": "TR-186-2-94-11",
        "pages_from": "1",
        "pages_to": "10",
        "research_areas": [],
        "keywords": [
            "(nonlinear) ray tracing",
            "radiosity",
            "extended camera specification",
            "morphing"
        ],
        "weblinks": [],
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        "url": "https://www.cg.tuwien.ac.at/research/publications/1994/Groeller-1994-HIS/",
        "__class": "Publication"
    },
    {
        "id": "Groeller-1994-AIV",
        "type_id": "techreport",
        "tu_id": null,
        "repositum_id": null,
        "title": "Attract - Interactive Visualization of\n                Dynamical Systems",
        "date": "1994-11",
        "abstract": "An interactive program for visualizing the long\nterm behavior of dynamical systems, e.g., attractors\nand bifurcation diagrams, is presented. The program\nallows an easy specification of a set of formulas and\nconstants which describe a dynamical system. This set\nof equations is then used for displaying the\ngeometrical structure of the long term development of\nthe dynamical system. The user defines the assignment\nof variables of the dynamical system to at most three\nspatial axes and one color axis. Viewing parameters,\ne.g., point of view, zoom, rotation angle, can again\nbe changed interactively. The program is intended to\nprovide researchers working on dynamical systems with\n                a fast visual analysis and experimentation tool.",
        "authors_et_al": false,
        "substitute": null,
        "main_image": null,
        "sync_repositum_override": null,
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        "authors": [
            166,
            442
        ],
        "number": "TR-186-2-94-14",
        "pages_from": "1",
        "pages_to": "10",
        "research_areas": [],
        "keywords": [
            "visualization",
            "interactive",
            "dynamical system",
            "chaos",
            "strange attractor",
            "bifurcation diagram"
        ],
        "weblinks": [],
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        "url": "https://www.cg.tuwien.ac.at/research/publications/1994/Groeller-1994-AIV/",
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    {
        "id": "Gervautz-1994-MUI",
        "type_id": "techreport",
        "tu_id": null,
        "repositum_id": null,
        "title": "Multimedia und Interaktion",
        "date": "1994-10",
        "abstract": "Classroom 2000 ist ein neues Buzzword geworden.\nWird unser Ausbildungssystem im Jahr 2000 durch\nneue Technologien všllig verŠndert sein? Werden\nLernende zu Hause oder an ihrem gewohnten\nArbeitsplatz bleiben und mit multimedialen\nAusbildungssystemen ihr Wissen erar\u001fbeiten. Werden\nKlassenzimmer zu hochtechnologischen GerŠteparks in\ndenen die Kommunikation zwischen Lehrer und\nLernenden fast nur mehr in digitaler Form erfolgt?\nOder werden wir mit Datenhelm und Datenhandschuh von\nVirtuellen Lernwelten so fasziniert, da§ ein\nAussteigen aus dieser Welt einem Drogenentzug\n                gleichkommt?",
        "authors_et_al": false,
        "substitute": null,
        "main_image": null,
        "sync_repositum_override": null,
        "repositum_presentation_id": null,
        "authors": [
            249,
            445
        ],
        "number": "TR-186-2-94-7",
        "pages_from": "1",
        "pages_to": "15",
        "research_areas": [],
        "keywords": [
            "multimedia in education",
            "computer based training",
            "multimedia",
            "hypermedia",
            "hypertext"
        ],
        "weblinks": [],
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        "__class": "Publication"
    },
    {
        "id": "feda-1994-eff",
        "type_id": "inproceedings",
        "tu_id": null,
        "repositum_id": null,
        "title": "Efficient Realistic Image Synthesis by Parallel Monte Carlo Radiosity on Transputers",
        "date": "1994-09",
        "abstract": "",
        "authors_et_al": false,
        "substitute": null,
        "main_image": null,
        "sync_repositum_override": null,
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        "authors": [
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            190
        ],
        "booktitle": "Transputer Applications and Systems '94, Proceeding of the World Transputer Congress'94",
        "location": "Cernobbio, Italy",
        "organization": "World Transputer Congress'94",
        "pages_to": "5.9.2005",
        "publisher": "IOS Press",
        "research_areas": [],
        "keywords": [],
        "weblinks": [],
        "files": [],
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        "url": "https://www.cg.tuwien.ac.at/research/publications/1994/feda-1994-eff/",
        "__class": "Publication"
    },
    {
        "id": "feda-1994-med",
        "type_id": "journalpaper",
        "tu_id": null,
        "repositum_id": null,
        "title": "A Median Cut Algorithm for Efficient Sampling of Radiosity Functions",
        "date": "1994-09",
        "abstract": "",
        "authors_et_al": false,
        "substitute": null,
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        "authors": [
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        ],
        "date_from": "2005-09-16",
        "journal": "Computer Graphics Forum, Proceedings of Eurographics '94",
        "location": "Oslo, Norwegen",
        "number": "3",
        "volume": "13",
        "research_areas": [],
        "keywords": [],
        "weblinks": [],
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        "url": "https://www.cg.tuwien.ac.at/research/publications/1994/feda-1994-med/",
        "__class": "Publication"
    },
    {
        "id": "feda-1994-para",
        "type_id": "inproceedings",
        "tu_id": null,
        "repositum_id": null,
        "title": "Parallel Radiosity on Transputers with Low Communication Overhead",
        "date": "1994-09",
        "abstract": "",
        "authors_et_al": false,
        "substitute": null,
        "main_image": null,
        "sync_repositum_override": null,
        "repositum_presentation_id": null,
        "authors": [
            245
        ],
        "booktitle": "Proceedings of the 2nd Austro- Hungarian Workshop on Transputer Applications",
        "date_to": "2005-09-29",
        "editor": "S. Ferenczi, P. Kacsuk",
        "location": "Budapest, Hungary",
        "organization": "Hungarian Academy of Science",
        "research_areas": [],
        "keywords": [],
        "weblinks": [],
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        "url": "https://www.cg.tuwien.ac.at/research/publications/1994/feda-1994-para/",
        "__class": "Publication"
    },
    {
        "id": "Purgathofer-1994-CPI",
        "type_id": "techreport",
        "tu_id": null,
        "repositum_id": null,
        "title": "A Collection of Papers of the Institute of Computer\n                Graphics",
        "date": "1994-08",
        "abstract": "This is the first technical report of the Institute of\nComputer Graphics at the Technical University of Vienna.\nIt contains papers published by our research group between\n1992 and 1993 providing an overview of our work during that\n                time.",
        "authors_et_al": false,
        "substitute": null,
        "main_image": null,
        "sync_repositum_override": null,
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        "authors": [
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            245,
            249,
            448,
            445,
            166,
            399,
            244,
            449
        ],
        "number": "TR-186-2-94-1",
        "pages_from": "1",
        "pages_to": "201",
        "research_areas": [],
        "keywords": [
            "computer graphics",
            "visualization",
            "animation",
            "radiosity",
            "monte carlo",
            "multi media",
            "nonlinear ray tracing",
            "coherence",
            "collision detection"
        ],
        "weblinks": [],
        "files": [],
        "projects_workgroups": [],
        "url": "https://www.cg.tuwien.ac.at/research/publications/1994/Purgathofer-1994-CPI/",
        "__class": "Publication"
    },
    {
        "id": "Gervautz-1994-AOO",
        "type_id": "techreport",
        "tu_id": null,
        "repositum_id": null,
        "title": "An Approach for Object-Oriented Animation Design",
        "date": "1994-08",
        "abstract": "In this concept we present tools for faster designing\nof reconfigurable function oriented animation systems.\nA set of basic animation structures and a set of basic\nanimation techniques are defined. An object-oriented\nhierarchy can be built on the basis of the relationship\nbetween basic animation structures and animation\ntechniques. We propose a corresponding class hierarchy\nfor animation design. The classes of our hierarchy are\nincrementally developed through inheritance and dynamic\nbinding. Some programming aspects concerning efficient\nimplementation of basic animation  structures through\n                container classes are discussed.",
        "authors_et_al": false,
        "substitute": null,
        "main_image": null,
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        "authors": [
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            447
        ],
        "number": "TR-186-2-94-2",
        "pages_from": "1",
        "pages_to": "13",
        "research_areas": [],
        "keywords": [
            "Computer Animation",
            "Object-Oriented Class Hierarchy",
            "Animation Classes"
        ],
        "weblinks": [],
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        "__class": "Publication"
    },
    {
        "id": "Groeller-1994-IDN",
        "type_id": "techreport",
        "tu_id": null,
        "repositum_id": null,
        "title": "Interactive Design of Nonlinear Functions for\n                Iterated Function Systems",
        "date": "1994-08",
        "abstract": "The basic requirement for the functions of an Iterated\nFunction System (IFS for short) is contractivity.\nNevertheless the majority of recent scientific investigations\nis concentrating on IFSs defined through a set of contractive\nlinear functions. Simpler handling of this kind of functions\nand a more predictable result is the main reason for this\napproach. In this work we use distorted grids (representing\nnonlinear functions) to specify an IFS with a higher degree\nof flexibility and a higher modelling capability. A program\nfor modeling these grids with so-called high-level operations\nis presented. Attention is directed to the interactivity of\ndesigning the IFS and rendering its limit set. Therefore a\nz-Buffer for displaying the result of a stochastic algorithm\nis included. Example images designed with the implemented\n\t\tsoftware system are presented.",
        "authors_et_al": false,
        "substitute": null,
        "main_image": null,
        "sync_repositum_override": null,
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        "authors": [
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            165
        ],
        "number": "TR-186-2-94-3",
        "pages_from": "1",
        "pages_to": "13",
        "research_areas": [],
        "keywords": [
            "iterated function system (IFS)",
            "nonlinear",
            "interactive design",
            "fractals",
            "rendering"
        ],
        "weblinks": [],
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        "url": "https://www.cg.tuwien.ac.at/research/publications/1994/Groeller-1994-IDN/",
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    },
    {
        "id": "jankovic-1994-phy",
        "type_id": "inproceedings",
        "tu_id": null,
        "repositum_id": null,
        "title": "Physically Based Matching of Multimodal Medical Information",
        "date": "1994-06",
        "abstract": "",
        "authors_et_al": false,
        "substitute": null,
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        "repositum_presentation_id": null,
        "authors": [
            444,
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        ],
        "booktitle": "Proceedings of the 10. Spring School on Computer Graphics '94 and its applications",
        "date_from": "1994-06-06",
        "date_to": "1994-06-09",
        "location": "Bratislava, Slovakia",
        "organization": "10. Spring School on Computer Graphics '94 and its applications",
        "research_areas": [],
        "keywords": [],
        "weblinks": [],
        "files": [],
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        "url": "https://www.cg.tuwien.ac.at/research/publications/1994/jankovic-1994-phy/",
        "__class": "Publication"
    },
    {
        "id": "Jankovic-1994-PBM",
        "type_id": "techreport",
        "tu_id": null,
        "repositum_id": null,
        "title": "Physically Based Matching of Multimodal Medical\n                Information",
        "date": "1994-06",
        "abstract": "The paper presents a general non-rigid body\nrepresentation suitable for physically-based\nmodeling of deformations of inhomogenious objects.\nThe reliability of the obtained results is\ndemonstrated on real medical data sets - CT an MR\n                scans of human brain.",
        "authors_et_al": false,
        "substitute": null,
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        "sync_repositum_override": null,
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        "authors": [
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        ],
        "number": "TR-186-2-94-9",
        "pages_from": "1",
        "pages_to": "8",
        "research_areas": [],
        "keywords": [
            "physically-based modeling",
            "medical imaging",
            "morphing",
            "multimodal matching",
            "morphing of inhomogeneous material"
        ],
        "weblinks": [],
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    },
    {
        "id": "Feda-thesis",
        "type_id": "phdthesis",
        "tu_id": null,
        "repositum_id": null,
        "title": "Efficient Radiosity Algorithms",
        "date": "1994-06",
        "abstract": null,
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        "authors": [
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        "date_end": "1994-06",
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    },
    {
        "id": "stuerzlinger-1994-two",
        "type_id": "inproceedings",
        "tu_id": null,
        "repositum_id": null,
        "title": "Two Optimization Methods for Raytracing",
        "date": "1994-06",
        "abstract": "",
        "authors_et_al": false,
        "substitute": null,
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        "sync_repositum_override": null,
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        ],
        "booktitle": "Proceedings of Spring School on Computer Graphics",
        "location": "Comenius University of Bratislava, Slovakia",
        "organization": "Spring School on Computer Graphics",
        "pages_from": "104",
        "pages_to": "107",
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        "url": "https://www.cg.tuwien.ac.at/research/publications/1994/stuerzlinger-1994-two/",
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    },
    {
        "id": "ferschin-1994-two",
        "type_id": "inproceedings",
        "tu_id": null,
        "repositum_id": null,
        "title": "A Two-Pass Radiosity Method for CSG-Models",
        "date": "1994-06",
        "abstract": "",
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        "authors": [
            240
        ],
        "booktitle": "Proceedings of the 10. Sprig Schoon on Comoputer Graphics '94",
        "date_from": "1994-06-06",
        "date_to": "1994-06-09",
        "location": "Bratislava, Slovakia",
        "organization": "Comenius University Bratislava",
        "research_areas": [],
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        "url": "https://www.cg.tuwien.ac.at/research/publications/1994/ferschin-1994-two/",
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    },
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        "id": "neumann-1994-new",
        "type_id": "inproceedings",
        "tu_id": null,
        "repositum_id": null,
        "title": "A New Stochastic Radiosity Method for Highly Complex Scenes",
        "date": "1994-06",
        "abstract": "",
        "authors_et_al": false,
        "substitute": null,
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        "authors": [
            177,
            245,
            413,
            190
        ],
        "booktitle": "Proceedings of Fifth Eurographics Workshop on Rendering",
        "note": "TALK: W. Purgathofer 14.6.1994",
        "organization": "Fifth Eurographics Workshop on Rendering",
        "research_areas": [],
        "keywords": [],
        "weblinks": [],
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    },
    {
        "id": "Groeller-1994-ITV",
        "type_id": "techreport",
        "tu_id": null,
        "repositum_id": null,
        "title": "Interactive Transformation of 2D Vector Data",
        "date": "1994-06",
        "abstract": "A program for the interactive transformation of 2D\nvector data is presented. The program allows the\ndefinition of local and global transformations to\nestablish a matching between two data sets. Zoologists\ndeduce relationships between life forms by\ninvestigating their geometric shape. The presented\nprogram enables the investigation of 2D cross-sections\nof, e.g., insect bodies. The amount of the distortion\nrequired to map one cross-section onto another\nillustrates evolutionary links among different species.\nThe program is intended to facilitate the above\n                mentioned research activities.",
        "authors_et_al": false,
        "substitute": null,
        "main_image": null,
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        "authors": [
            166
        ],
        "number": "TR-186-2-94-8",
        "pages_from": "1",
        "pages_to": "6",
        "research_areas": [],
        "keywords": [
            "interactive morphing",
            "2D vector data",
            "grid distortions",
            "point based morphing",
            "attracting (repelling) points"
        ],
        "weblinks": [],
        "files": [
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    },
    {
        "id": "groeller-1994-int",
        "type_id": "inproceedings",
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        "repositum_id": null,
        "title": "Interactive Transformation of 2D Vector Data",
        "date": "1994-06",
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        "booktitle": "Proceedings of the 10. Spring Schoon on Computer Graphics '94 and its applications",
        "date_from": "1994-06-06",
        "date_to": "1994-06-09",
        "location": "Bratislava, Slovakia",
        "note": "TALK: 8.6.1994",
        "organization": "10. Spring Schoon on Computer Graphics '94 and its applications",
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    {
        "id": "gervautz-1994-app",
        "type_id": "inproceedings",
        "tu_id": null,
        "repositum_id": null,
        "title": "An Approach for Object-Oriented Animation Design",
        "date": "1994-06",
        "abstract": "",
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        ],
        "booktitle": "Proceedings of Spring School of Computer Graphics",
        "location": "Bratislava, Slovakia",
        "note": "TALK: M. Gervautz 7.6.1994",
        "organization": "Comenius University Bratislava",
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    {
        "id": "Groeller-1994-AVT",
        "type_id": "techreport",
        "tu_id": null,
        "repositum_id": null,
        "title": "Application of Visualization Techniques to\n                Complex and Chaotic Dynamical Systems",
        "date": "1994-06",
        "abstract": "Visualization provides powerful tools for the\ninvestigation of dynamical systems. The application\nof various visualization techniques to complex and\nchaotic dynamical systems is discussed. The\ninteractive specification and modification of strange\nattractors allow an easier understanding of the\nunderlying dynamics. Graphical time series analysis\nvisualizes time series and phase space reconstruction\ntechniques. Visualization of Nonlinear Iterated\nFunction systems is described as well. Finally\nadvanced visualization techniques are employed to\nillustrate shape and chaotic properties of strange\n                attractors.",
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        "substitute": null,
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        "number": "TR-186-2-94-13",
        "pages_from": "1",
        "pages_to": "12",
        "research_areas": [],
        "keywords": [
            "visualization",
            "dynamical systems",
            "chaos",
            "fractals",
            "interactive",
            "strange attractors",
            "graphical time series analysis",
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        ],
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