| 摘要 |
Motion vectors are determined for a video image by reference to the following image only. Vectors so determined are used to control a multi-tap motion-compensated temporal interpolation filter in order to interpolate one or more images between the image and the following image. The temporal interpolation filter uses primarily or wholly samples from the following images, since this approach gives valid answers in areas of both foreground and revealed background; whereas the motion estimation algorithm cannot distinguish between such regions. The same principle may be applied when motion vectors are derived by reference to preceding images only, that is, the filter takes contributions predominantly or wholly from preceding images. <IMAGE> |
