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Optical flow or optic flow is the pattern of apparent motion of objects, surfaces, and edges in a visual scene caused by the relative motion between an observer and a scene. Optical flow can also be defined as the distribution of apparent velocities of movement of brightness pattern in an image.
물체나 표면 모서리 등에서 나타나는 패턴인데, 관찰자와 장면 사이의 상대적인 움직임에 의해서 나타난다. 이미지 상의 밝기 패턴의 움직임의 속도 분포로도 정의된다.
https://learnopencv.com/optical-flow-in-opencv/
Optical Flow in OpenCV (C++/Python)
In this post, we will take a look at the theoretical aspects of Optical Flow algorithms and their practical usage with OpenCV.
learnopencv.com
