LOW-COMPLEXITY RATE CONTROL IN VIDEO CODING BASED ON BI-GEOMETRIC TRANSPARENT COMPOSITE MODELS

被引：0
|
作者：
Gao, Yueming [1 ]
Yang, En-hui [1 ]
He, Da-ke [2 ]
机构：
[1] Univ Waterloo, Dept Elect & Comp Engn, 200 Univ Ave West, Waterloo, ON N2L 3G1, Canada
[2] BlackBerry, Waterloo, ON N2K 0A8, Canada
来源：
2015 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP) | 2015年
关键词：
Distribution of transformed coefficients; video coding; transparent composite model; rate control; ALLOCATION;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Bi-geometric transparent composite models (BGTCM) are used to model distributions of transform coefficients in HEVC (High efficiency video coding). Both Kullback-Leibler divergence and chi(2) test show that, for both original and quantized transform coefficients in HEVC, BGTCMs provide better modelling performance than popular Laplacian and Cauchy models. Based on BGTCMs, a rate control algorithm is proposed for HEVC. Experimental results using the HEVC reference software show that the proposed algorithm achieves better performance in constant-bit-rate control than previous rate control algorithms based on Laplacian models.
引用
收藏
页码：1419 / 1423
页数：5
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