Research on Zero-Block Detection Threshold in H.264/AVC

He, Wei; Xiao, Minlian

doi:10.1109/icpca.2007.4365506

Cited by 2 publications

(1 citation statement)

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“…Both the two kinds of information are acquired after discrete cosine transform (DCT). However, to further accelerate the encoding process, [5] extended the concept of zero block detection in H.264 [6] and combined the property of zero block inheritance (ZBI) [7] to early skip or terminate the RQT processes.…”

Section: Related Workmentioning

confidence: 99%

A Fast TU Mode Decision Algorithm Based on Residual Difference for HEVC

Liang

chen

et al. 2017

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High Efficiency Video Coding (HEVC) is the latest video coding standard. The residual quadtree (RQT) coding structure which provides variable block size for transform coding, is adopted in HEVC to achieve high coding efficiency. However, compared with previous standards, encoding complexity is increased significantly in HEVC due to the advanced encoding structure. A fast transform unit (TU) mode decision algorithm using residual difference is proposed in this paper to reduce the computational complexity. The proposed algorithm utilized the residual difference to determine the criterion of early TU termination and early TU skip. The threshold was trained from the beginning samples of each sequence. Experimental results showed that the proposed algorithm saves up to 75.64% and on average 64% TU encoding time compared with HM 15.0 in low delay P configuration and the loss of average BD-BR is less than 0.5%.

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Section: Related Workmentioning

confidence: 99%