Self-adaptive CU splitting decision-making method based on deep learning and multi-feature fusion

The invention provides an adaptive CU splitting decision method based on deep learning and multi-feature fusion. The method comprises the steps: firstly, calculating the texture complexity SD of a current CU through standard deviation, building a threshold model through a quantization parameter func...

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Hauptverfasser: ZHANG WEIWEI, ZHAO YONGBO, WANG XIAO, WEI TAO, WU QINGGANG, JIANG BIN, ZHAO JINCHAO, WANG YIHAN, HUANG LIXUN, ZHANG QIUWEN, GUO RUIXIAO, CHANG HUAWEN, WANG ZHAOBO, CUI TENGYAO, QIAN XIAOLIANG, SUN LIJUN
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention provides an adaptive CU splitting decision method based on deep learning and multi-feature fusion. The method comprises the steps: firstly, calculating the texture complexity SD of a current CU through standard deviation, building a threshold model through a quantization parameter function and a depth function, and dividing the current CU into a complex CU and a uniform CU; secondly,if the complex CU belongs to the edge CU, judging whether the complex CU is split or not by utilizing a CNN structure based on multi-feature fusion; otherwise, judging whether the complex CU is splitor not by utilizing the self-adaptive CNN structure. According to the method, deep learning and multi-feature fusion are combined, and the problem of coding complexity is solved. The CNN structure based on multi-feature fusion and the CNN structure based on self-adaptation can successfully process the training samples, calculation of rate distortion RDO of all CU and complex CU is avoided, and therefore the calculation co