Time-recursive deinterlacing for IDTV and pyramid coding

Advanced Motion Estimation and Motion Compensated Deinterlacing

“…Two interesting algorithms for motion estimation and de-interlacing of Wang et al [3] and Vandendorpe et al [2] have been compared. The TGST was found to be superior (in terms of MSE i ) for sequences with uniform motion, whereas the recursive algorithm of Wang was found to be superior for sequences with non-uniform motion.…”

“…In [3], a time-recursive de-interlacing algorithm is proposed in which the interpolated pixels are determined by motion compensating the previously found de-interlaced output signal:…”

“…To prevent serious propagation errors, several solutions have been described in [3]. Particularly, the median filter is recommended to solve this problem.…”

“…Consequently, it is advantageous to use information from the current field. The TR de-interlacer does not use information from the current field for calculating the interpolated lines, but uses information from previous fields only 3 .…”

“…Wang et al [3], somewhat earlier, proposed an alternative high-quality, time-recursive, deinterlacing concept, which does not impose a constant velocity constraint. The de-interlacing proposal also requires motion estimation and aims at the highest performance level.…”