CODEWITHSUNDEEP
c++image-processingopencv
lital maatuk
lital maatuk

Reputation: 6239

Calculating optical flow with opencv

I am using the function: 

cvCalcOpticalFlowBM

To calculate the optical flow. The code is running, but the velocity matrices are zero (both x and y), although the input video clearly changes. Does anyone have an idea why would the velocity matrices be zero (black)?

Upvotes: 2

Views: 12762

Answers (1)

haberdar
haberdar

Reputation: 511

This tutorial shows how to use optical flow in opencv from scratch. It explains how to draw velocity vectors etc.

http://robots.stanford.edu/cs223b05/notes/CS%20223-B%20T1%20stavens_opencv_optical_flow.pdf

Upvotes: 8

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