[
    {
        "id": "Carata_2011_IVE",
        "type_id": "inproceedings",
        "tu_id": null,
        "repositum_id": null,
        "title": "Improving the Visualization of Electron-Microscopy Data Through Optical Flow Interpolation",
        "date": "2011-04",
        "abstract": "Technical developments in neurobiology have reached a point\r\nwhere the acquisition of high resolution images representing individual\r\nneurons and synapses becomes possible. For this, the brain\r\ntissue samples are sliced using a diamond knife and imaged with\r\nelectron-microscopy (EM). However, the technique achieves a low\r\nresolution in the cutting direction, due to limitations of the mechanical\r\nprocess, making a direct visualization of a dataset difficult. We\r\naim to increase the depth resolution of the volume by adding new\r\nimage slices interpolated from the existing ones, without requiring\r\nmodifications to the EM image-capturing method. As classical interpolation\r\nmethods do not provide satisfactory results on this type\r\nof data, the current paper proposes a re-framing of the problem in\r\nterms of motion volumes, considering the depth axis as a temporal\r\naxis. An optical flow method is adapted to estimate the motion\r\nvectors of pixels in the EM images, and this information is used\r\nto compute and insert multiple new images at certain depths in the\r\nvolume. We evaluate the visualization results in comparison with\r\ninterpolation methods currently used on EM data, transforming the\r\nhighly anisotropic original dataset into a dataset with a larger depth\r\nresolution. The interpolation based on optical flow better reveals\r\nneurite structures with realistic undistorted shapes, and helps to easier\r\nmap neuronal connections.",
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        "authors": [
            981,
            871,
            226,
            166
        ],
        "booktitle": "Proceedings of the 27th Spring Conference on Computer Graphics",
        "date_from": "2011-04-27",
        "date_to": "2011-04-30",
        "lecturer": [
            981
        ],
        "location": "Viničné, Slovak Republic",
        "organization": "Spring Conference on Computer Graphics",
        "pages_from": "1",
        "pages_to": "8",
        "research_areas": [],
        "keywords": [],
        "weblinks": [],
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                "url": "https://www.cg.tuwien.ac.at/research/publications/2011/Carata_2011_IVE/Carata_2011_IVE-Paper.pdf",
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        "url": "https://www.cg.tuwien.ac.at/research/publications/2011/Carata_2011_IVE/",
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