吉林大学学报(工学版) ›› 2017, Vol. 47 ›› Issue (2): 670-676.doi: 10.13229/j.cnki.jdxbgxb201702044

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Enhancement layer fast coding algorithm for quality scalability in SHVC

LI Xiao-ni1, CHEN Mian-shu1, SANG Ai-jun1, QU Zhao-wei2   

  1. 1.College of Communication Engineering,Jilin University,Changchun 130022,China;
    2.College of Transportation,Jilin University,Changchun 130022,China
  • Received:2015-12-18 Online:2017-03-20 Published:2017-03-20

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Abstract: To reduce the coding computational complexity of the quadtree structured Coding Unit (CU) partition process in quality Scalable High Efficiency Video Coding (SHVC), a fast Enhancement Layer (EL) coding algorithm by jointly using the inter-layer and spatio-temporal correlations was proposed. First, the CU depth range is the EL was predicted by the Base Layer (BL) depth information and some specific depth levels rarely used were skipped. Then, at each depth level, the prediction mode was fast determined using the Block Motion Complexity (BMC) based on the spatio-temporal and parent neighboring Prediction Units (PUs). Experimental results show that, compared to the SHVC encoder, the proposed algorithm can save 78% coding time on average with almost the same RD performance.

Key words: information processing technology, fast coding, coding unit size, scalable high efficiency video coding (SHVC)

CLC Number: 

  • TN919
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