How to get the aperture angle from a webcam with OpenCV?

StackOverflow https://stackoverflow.com/questions/7293571

题

I'm capturing the webcam images with OpenCV and C++ and tracking the persons face. So my problem is that I need the aperture angle to calculate the position of the person. How to get this angle?

Thanks

有帮助吗？

解决方案

You need to calibrate your camera using a standard calibration target like a chessboard. Look here for the OpenCV camera calibration API.

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