System information (version)
- OpenCV => 4.5.0
Unfortunately the forward backwards consistency check is not available in the opencv implementation of the DIS Optical Flow.
The problem lies in the inaccuracy of the flow result, and the FW/BW consistency check could improve results e.g. by setting the flow vector entries to NAN for pixels where the FW/BW consistency check fails.
It is better to know that the result can not be trusted than trusting it completely although it may be a wrong result.