Motion Compensation\Motion Estimation
Motion Estimation – is a process of finding temporal (inter) prediction on the encoder side, applied for the image block of the current frame. The process is to search for the best match for the block in the past or future frame. The criterion for finding the best match is usually minimal energy left in the block’s residual image. The result of motion estimation is called motion compensated prediction.
Motion Compensation – is a process of forming a residual image by subtracting motion-compensated prediction from a current image.