XVC-1001-DC | Guide to installation and operation |
More advanced de-interlacing techniques include frame-based, motion- adaptive de-interlacing. This is essentially the same technique described above however, by using a simple motion calculation, the video processor can determine when no movement has occurred in the entire picture. If nothing in the image is moving, the processor combines the two fields directly. With this method, still images can have the complete 1080 lines of vertical resolution, but as soon as there is any motion, half of the data is discarded and the resolution drops to 540 lines. So, while static images look sharp, moving images does not.
The most advanced de-interlacing techniques available are pixel-based and motion-adaptive. With this type of processing, motion is identified at the pixel level rather than the frame level, discarding only the pixels that would cause combing artifacts and displaying everything else at full resolution. Pixel-based motion-adaptive de-interlacing avoids artifacts in moving objects and preserves full resolution of non-moving portions of the screen even if neighbouring pixels are in motion.
Downconverter
An upconverter converts video with a higher picture resolution to one with a lower definition. Typically, it refers to taking programming in high- definition (1080i or 720p) and making it into standard definition (480i or 576p). Converting high-definition video to standard definition video involves resizing an image to contain as much as six times less the number of pixels it had originally. This is done through interpolation, which discards pixels that aren’t needed to render the lower resolution image.
