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| # motionEnergy | ||
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| Implements motion energy filtering as described in Adelson & Bergen (1985), on 3D moving dot stimuli as done in Kiani et al. (2008) and others. | ||
| Implements motion energy filtering as described in Adelson & Bergen (1985), on 3D moving dot stimuli as done in Kiani et al. (2008) and others. See tutorial.m for explanation of how to use the code. | ||
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| See also these excellent tutorials on the 2D equivalent of these filters | ||
| * http://www.georgemather.com/Model.html (George Mather) | ||
| * http://mplab.ucsd.edu/~marni/CSHL_Tutorials/MotionEnergy.tar (Simoncelli, Glimcher, Chichilnisky) | ||
| * http://www.cns.nyu.edu/~david/courses/perceptionGrad/syllabus2015.html (David Heeger) | ||
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| INPUT | ||
| - stimulus, a 3d matrix containing the x-y-t stimulus movie | ||
| - display, structure containing the following fields: | ||
| - display.frameRate (in Hz) | ||
| - display.ppd (pixels/degree) OR all of the following: | ||
| - display.width (in cm of physical screen) | ||
| - display.res.width (in pixels) | ||
| - display.dist (between eyes and screen, in cm) | ||
| - theta, the angles at which motion energy should be computed | ||
| (rightwards = 0, counterclockwise). | ||
| - plotme, generate graphical output (default = false); | ||
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| OUTPUT | ||
| - motionenergy, length(theta) x size(stimulus, 3) motionenergy filter output | ||
| filters (optional) | ||
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| Anne Urai, 2016 | ||
| [email protected] / anneurai.net | ||
| Thanks to Klaus Wimmer | ||
| % Permission is hereby granted, free of charge, to any person obtaining a | ||
| % copy of this software and associated documentation files (the "Software"), | ||
| % to deal in the Software without restriction, including without limitation | ||
| % the rights to use, copy, modify, merge, publish, distribute, sublicense, | ||
| % and/or sell copies of the Software, and to permit persons to whom the | ||
| % Software is furnished to do so, subject to the following conditions: | ||
| % | ||
| % The above copyright notice and this permission notice shall be included | ||
| % in all copies or substantial portions of the Software. | ||
| % If you use the Software for your own research, cite the paper. | ||
| % | ||
| % THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS | ||
| % OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| % FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| % AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| % LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | ||
| % FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | ||
| % DEALINGS IN THE SOFTWARE. | ||
| % | ||
| % Anne Urai and Klaus Wimmer, 2016 | ||
| % [email protected] / [email protected] | ||
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| [](http://dx.doi.org/10.5281/zenodo.45139) |