File:Motion Detectors.png
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[edit]DescriptionMotion Detectors.png |
English: Two different mechanisms for motion detection. Left) A "Reichardt detector" consists of two mirror-symmetrical subunits. In each subunit, the luminance values as measured in two adjacent points become multiplied (M) with each other after one of them is delayed by a low-pass filter with time-constant "tau". The resulting output signals of the multipliers become finally subtracted. Right) In the gradient detector, the temporal luminance gradient as measured after one photoreceptor (δI/δt, Left) is divided by the spatial luminance gradient (δI/δx). Here, the spatial gradient is approximated by the difference between the luminance values in two adjacent points. |
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Source | Own work |
Author | Thomas.haslwanter |
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current | 13:37, 25 March 2013 | 1,000 × 641 (15 KB) | Thomas.haslwanter (talk | contribs) | User created page with UploadWizard |
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