pedestrian tracking/ this post about how to use OpenCV s HOG-based pedestrian detector: How can I detect and track people using OpenCV? ... of opencv. that said it should be easy to hack the opencv source code

采用 CAMSHIFT 算法快速跟踪和检测运动目标的 C/C++ 源代码，OPENCV BETA 4.0 版本在其 SAMPLE 中给出了这个例子。-CAMSHIFT algorithm using fast-track and detect moving targets C/C++ source code, OPENCV BETA 4.0 release is given in this example in their SAMPLE.