A motion-adaptive control methods of frame rate and temporal filtering parameter is investigated for the hybrid coding of motion-compensated prediction and discrete cosine transform (MCP/DCT).
The frame rate control is to reduce the jerkiness and the amount of prediction error for the subsampled frame sequence of a fixed rate. The motion-adaptive temporal filtering is to take advantage of the human visual system's inability to discriminate details at the part of high frame-to-frame motion in moving image sequences.
The effects of motion-adaptive frame rate control and recursive temporal filtering are examined for some standard test image sequences in a MCP/DCT hybrid coding system without the feedback loop. It is shown that reduce the amount of output data about 10% in average without (remarkable) loss in performance.
