Adaptive Frequency Weighting for High-Performance Video Coding


The benefits of utilizing the spatial-frequency sensitivity of the human visual system in video coding have been known for many years and are incorporated into video standards, like MPEG2, MPEG4, and H.264/AVC, plus into still image-coding standards, like JPEG and JPEG-200zero. However, all of those standards utilize frequency weighting that's adaptive only at the image level. In distinction with such image-level adaptive frequency-weighting algorithms, we have a tendency to describe a coding approach in which a macroblock-level adaptive frequency-weighting (MBAFW) algorithm is used. We tend to show that for the bitrate, quality levels, and resolutions sometimes related to high-definition video, MBAFW can result in overall bitrate reductions sometimes within the 5%–ninep.c range over the methods employed in state-of-the-art video-coding standards.

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