Resizing Optical Flow

[h-gokul]

The image resolution seems really huge for the model that I am training and I would prefer to downscale it to a smaller shape. however, the optical flow groundtruths cannot be resized the same way. Any suggestions on how to do this ?

[Amigoshan]

One approximate solution is to resize the flow, and divide the value by the resize scale. There would be some error on the edges of course. Would this be enough for your use?