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train facerecognizer model with gpu support

asked 2014-02-06 06:26:17 -0500

Jos gravatar image

updated 2014-02-06 06:40:40 -0500

berak gravatar image

Is there gpu support to train images on a facerecognizer? I have done it without gpu support and it takes a long time.

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answered 2014-02-27 03:11:56 -0500

Urvesh gravatar image

updated 2014-02-27 03:12:40 -0500

No. As of now, No support from OpenCV for face recognition on GPU. By the way, You can detect face regions in images on GPU using OpenCV's GPU module. GPU version of cascade classifier is available. You will need to go further by yourself.

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answered 2014-02-27 03:25:57 -0500

updated 2014-02-27 03:28:12 -0500

Since facerecognizer is implemented as a demo face recognition (FR) system to show that a real FR application is viable, it does not have good performance (speed and accuracy) with large training sets or real life applications. You can see that the author uses PCA for eigenvalues, eigenvectors computations, and a lot of matrix multiplication, which are not advantages of OpenCV. You can get faster training stage if using other libraries which are dedicated (or just better than OpenCV) for matrix multiplication and eigen computation. Armadillo and Eigen are some preferable choices.

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Asked: 2014-02-06 06:26:17 -0500

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Last updated: Feb 27 '14