| 摘要 |
<p>A more efficient spatial scalable compression scheme using adaptive content filtering is disclosed. The amount of video compression of a spatial scalable compression scheme is increased by the introduction of a multiplier on the residual stream of the enhancement layer. The multiplier is controlled by gain values for each pixel or group of pixels in each frame of video from a picture analyzer, wherein the gain values tend toward zero for areas with little or no detail and tends toward one for edges and text. Thus, the multiplier acts as a filter to reduce the amount of bits spent on irrelevant data of the enhancement layer. The multiplier also allows dynamic resolution compression.</p> |
