A Probability-Based Zero-Block Early Termination Algorithm for QSHVC
dc.cclicence | CC-BY-NC | en |
dc.contributor.author | Wang, Dayong | |
dc.contributor.author | Lu, Xin | |
dc.contributor.author | Sun, Yu | |
dc.contributor.author | Wang, Qianmin | |
dc.contributor.author | Li, Weisheng | |
dc.contributor.author | Dufaux, Frederic | |
dc.contributor.author | Zhu, Ce | |
dc.date.acceptance | 2023-02-23 | |
dc.date.accessioned | 2023-02-23T09:58:45Z | |
dc.date.available | 2023-02-23T09:58:45Z | |
dc.date.issued | 2023-04-05 | |
dc.description.abstract | To seamlessly adapt to time-varying network bandwidths, the Quality Scalable High-Efficiency Video Coding (QSHVC) is developed. However, its coding process is overly complex, and this seriously limits its wide applications in real-time environments. Therefore, it is of great significance to study fast coding algorithms for QSHVC. In this paper, we propose a novel probability-based zero-block early termination algorithm for QSHVC. First, we observed that the generated residual coefficients follow the Laplace distribution if a CU is accurately predicted. According to this observation, we derive the sum of squared differences based All-Zero Block (AZB) decision condition. Second, we develop the Hadamard Transform (HT)- based zero-valued quantized coefficient decision condition to obtain zero-valued quantized coefficients and the corresponding Partial-Zero Block (PZB). Third, the probability of each coding mode and coding depth being chosen as the best ones are combined with both AZBs and PZBs to derive the probability-based early termination condition. The experimental results show that the proposed algorithm can improve the average coding speed by 80.6% with a 0.31% decrease in BDBR. | en |
dc.funder | No external funder | en |
dc.identifier.citation | Wang, D. et al. (2023) A Probability-Based Zero-Block Early Termination Algorithm for QSHVC. IEEE Transactions on Broadcasting, 69 (2), pp. 469-481 | en |
dc.identifier.doi | https://doi.org/10.1109/TBC.2023.3262110 | |
dc.identifier.uri | https://hdl.handle.net/2086/22527 | |
dc.language.iso | en | en |
dc.peerreviewed | Yes | en |
dc.publisher | IEEE | en |
dc.researchinstitute | Institute of Artificial Intelligence (IAI) | en |
dc.subject | SHVC | en |
dc.subject | probability | en |
dc.subject | AII-Zero Block | en |
dc.subject | Partial-Zero Block | en |
dc.title | A Probability-Based Zero-Block Early Termination Algorithm for QSHVC | en |
dc.type | Article | en |
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