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Erschienen in:
2014 | OriginalPaper | Buchkapitel
Pixel Granularity Template Matching Method for Screen Content Lossless Intra Picture
verfasst von : Lixin Feng, Pin Tao, Daxin Guang, Jiangtao Wen, ShiQiang Yang
Erschienen in: Advances in Multimedia Information Processing – PCM 2014
Verlag: Springer International Publishing
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The-state-of-art High Efficiency Video Coding(HEVC) is designed towards the natural picture. Screen Content picture contains many similarities in one picture which can be used to improve the intra picture compression ratio. We propose sample rearrangement and template matching method by exploiting the similarities in the screen content picture. The 21 pixels template and the high efficiency multiple hash table are designed. Experiment results show that our proposal method can improve the lossless compression ratio by up to 4.23 times than HEVC Range Extensions.