| 摘要 |
<p>A method for reducing the noise in digital video information is provided which includes the use of key frames (10), whereby pixel values (12, 14, 16) for a key frame replace the corresponding pixel values for corresponding pixels of all subsequent frames prior to another key frame, as long as the pixel values being replaced do not differ from the key frame values by more than a predetermined threshold. A key frame, once established, is compared to a next frame (18) to determine whether the next frame should be designated another key frame. The next frame should be designated another key frame when more than a predetermined portion of the pixels of the next frame differ from corresponding pixels of the original key frame by more than a predetermined threshold. The method proceeds recursively until all pixels of all frames are resolved by having their values replaced by key frame values. The method may include data compression as an integral part thereof.</p> |
