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pkg/OpenFace/matlab_version/face_validation/readme.txt
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pkg/OpenFace/matlab_version/face_validation/readme.txt
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Code for facial landmark detection validation (knowing if detection succeeded), to be use for face tracking in videos so as not to do face detection every frame.
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To create the training data run:
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Create_data_train.m and Create_data_test.m
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The data generation code requires you to have the patch expert training data (Menpo, Multi-PIE and 300W data, not included) for positive examples, and inriaperson dataset for negative samples (not included as well).
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To train Convolutional Neural Network based face landmark validation model use:
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Train_face_checker_cnn.m
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This will produce trained/face_checker_cnn_*.mat and trained/face_checker_cnn_*.txt files that can be used in C++ and matlab versions of OpenFace for face validation. Old versions can also be found in trained folder (they are simpler CNN models trained on smaller datasets).
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This will also produces tris*.txt files that can be used in the C++ version of the OpenFace,just place it in the lib\local\LandmarkDetector\model\detection_validation folder and edit the appropriate "main_*.txt" files.
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The code uses piece-wise affine warping to a neutral shape with an CNN regressor for error estimation (see http://www.cl.cam.ac.uk/~tb346/ThesisFinal.pdf Section 4.6.2 for a very similar model but with SVR regressor)
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Dependencies:
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- vlfeat-0.9.20 and extract it in the current directory (http://www.vlfeat.org/download.html)
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- MatConvNet from http://www.vlfeat.org/matconvnet/ (tested with version 1.0-beta24), and install following the instructions
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Change the setup.m to match the locations of vlfeat and MatConvNet
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