LUI's profile - activity

Hi,

I've downloaded the latest version of OpenCV (from GIT) and tested the sample called RetinaDemo both with VS2010 and VS2008. When I run it in VS2008 it works correctly but with VS2010 it crashes. When I debug it I see that it fails in a process of Concurrency that is automatically activated in OpenCV when using VS2010. Does anybody faced this problem?

Thanks

Hi. I've seen over there that the Haar object detection procedure implemented in OpenCV has a patent. However, I've also seen a couple of pages that explain that depending on how the models are built we can use OpenCV for object detection patent-free (but they aren't sure 100% of this):

http://rafaelmizrahi.blogspot.com.es/2007/02/intel-opencv-face-detection-license.html

http://sarnami.net/face-recognition/news/opencv-face-detection-and-patents-or-how-to-train-your-classifier-without-patent-infringement/

There are some pre-trained Haar-based models in OpenCV that mention they are "tree-based" instead of "stump-based" as explained in the pages above so that they can be patent-free. So... do you think it would be possible to use these detectors as patent-free? (it's quite confusing for me all this patent issue, I'm not a lawyer). Thanks!