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

页码：1419 / 1423

页数：5

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