Video coding using pruned transforms and interleaving of multiple block
Cixun Zhang, Kemal Uǧur, Jani Lainema, Antti Hallapuro, Moncef Gabbouj · IEEE International Conference on Acoustics Speech and Signal Processing · 2008
Technologies used in today's video coding standards have been designed and optimized mainly for standard definition (SD) resolutions and below. When moving to higher resolutions, data in video frames tend to become more correlated spatially. In this paper, we study how to take advantage of this phenomenon to lower computational requirements for high definition (HD) video coding. A coding method based on low complexity pruned transforms and interleaving of multiple transform coefficient blocks is proposed. An example implementation of this method in the context of H.264/AVC is also presented. Experimental results show that the proposed method maintains the high compression efficiency of H.264/AVC while significantly lowering the coding complexity of the codec.