A Probability-Based Zero-Block Early Termination Algorithm for QSHVC

dc.cclicenceCC-BY-NCen
dc.contributor.authorWang, Dayong
dc.contributor.authorLu, Xin
dc.contributor.authorSun, Yu
dc.contributor.authorWang, Qianmin
dc.contributor.authorLi, Weisheng
dc.contributor.authorDufaux, Frederic
dc.contributor.authorZhu, Ce
dc.date.acceptance2023-02-23
dc.date.accessioned2023-02-23T09:58:45Z
dc.date.available2023-02-23T09:58:45Z
dc.date.issued2023-04-05
dc.description.abstractTo 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.funderNo external funderen
dc.identifier.citationWang, D. et al. (2023) A Probability-Based Zero-Block Early Termination Algorithm for QSHVC. IEEE Transactions on Broadcasting, 69 (2), pp. 469-481en
dc.identifier.doihttps://doi.org/10.1109/TBC.2023.3262110
dc.identifier.urihttps://hdl.handle.net/2086/22527
dc.language.isoenen
dc.peerreviewedYesen
dc.publisherIEEEen
dc.researchinstituteInstitute of Artificial Intelligence (IAI)en
dc.subjectSHVCen
dc.subjectprobabilityen
dc.subjectAII-Zero Blocken
dc.subjectPartial-Zero Blocken
dc.titleA Probability-Based Zero-Block Early Termination Algorithm for QSHVCen
dc.typeArticleen

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