To track a specific coordinate in a video and obtain the second coordinate of that point, use optical-flow with the "estimateFlow" function in MATLAB. The "estimateFlow" function allows you to estimate the motion vectors, which can then be used to track the movement of a specific point across frames.
The motion vectors estimated by "estimateFlow" represent the direction and magnitude of motion for each pixel between consecutive video frames.
For more information on the "estimateFlow" function you may refer to the MathWorks documentation: https://www.mathworks.com/help/vision/ref/opticalflowhs.estimateflow.html
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