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This code was written in order to recognize multiple faces expressions with 360 dualfisheye cameras. I used theta S camera - capturing 360 dualfisheye images with 15 fps.

I used ffmpeg to convert dualfisheye image to rectangular image. the mapping file was created by "projection.c" program which creates the files "fisheye_grid_ymap.pgm" and "fisheye_grid_xmap.pgm" you can find the program at the link: you can create a mapping file for several cameras and resolutions.

in order to analayze expressions you need to get the affectiva ros node

face detection algorithem was taken from

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