Abstract
Transform/quantization (T/Q) is one of the high complex modules in high efficiency video coding (HEVC). In this paper, all zero block (AZB) detection algorithm for HEVC is proposed to reduce the complexity of T/Q. The proposed AZB detection algorithm is based on the quantization level of the maximum transform coefficient, which is suitable for both uniform quantizer (UQ) and rate-distortion optimized quantizer (RDOQ). Experimental results show that 46% complexity of T/Q for UQ and 42% for RDOQ can be reduced with negligible loss of video quality and compression efficiency, outperforming the state-of-the-art methods.
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Acknowledgments
This work was supported in part by the National Natural Science Foundation of China (61602383 and 61772424), the Fundamental Natural Science Research Funds of Shaanxi Province (2018JQ6016 and 2017JQ6019), and the Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University (CX201716).
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Wei, H., Zhou, W., Zhang, X. et al. All zero block detection for HEVC based on the quantization level of the maximum transform coefficient. Multimed Tools Appl 78, 363–387 (2019). https://doi.org/10.1007/s11042-018-6529-9
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DOI: https://doi.org/10.1007/s11042-018-6529-9