After analyzing intra_frame prediction algorithm,a new intra_4 ×4 mode selection algorithm based on rate distortion optimization(RDO) was proposed.
在详细分析帧内预测模式选择过程的基础上,提出了一种率失真优化(rate distortion optimization,RDO)模式下的快速Intra_4×4模式选择算法。
264/AVC standard employs variable block size Motion Estimation(ME) and Rate Distortion Optimization(RDO) technique in inter-frame mode decision to enhance coding efficiency,but it increases computational complexity drastically.
264/AVC标准采用可变块运动估计和率失真优化技术进行帧间模式选择,提高了编码效率,但极大地增加了计算复杂度。
AVS video standard adopts the Rate Distortion Optimization(RDO) technique to improve the compression performance in the intra prediction.
AVS视频标准采用率失真优化(RDO)算法来提高帧内预测的压缩性能。
Region-of-interest coding based on rate-distortion optimization;
基于率失真优化的ROI编码算法
The multi-prediction macroblock mode search and rate-distortion optimization mode decision that achieve high encoding efficiency are introduced firstly.
在介绍多预测块模式搜索及率失真优化模式选择这2种带来高编码效率的技术的基础上,通过实验研究来分析这2种技术对编码性能的影响。
Moreover,in order to solve the error resilience and the real-time transmission problems,a scheduling algorithm for rate-distortion optimization of H.
264 FMO码流率失真优化调度算法。
Rate Distortion Optimization for Wavelet Video Coding;
小波视频编码的率失真优化
In this paper, rate distortion optimization coding and optimal rate control are studied jointly.
率失真优化技术在视频优化编码中起着重要的作用,广泛地应用于宏块模式决策,优化量化等编码模块中。
The impact of macroblock modes on source distortion and channel distortion is discussed,and thus a fast macroblock mode selection algorithm is proposed based on joint source-channel rate distortion optimization.
分析了受损宏块的信道失真及其差错扩散,研究了宏块编码模式对信源失真和信道失真的影响,提出了结合信源信道编码的一种基于率失真优化的快速模式选择算法。
The present algorithm based on local edge information and relativity of the neighborhood block precludes more than 60% probable modes before RDO.
但是由于支持的帧内预测模式较多,使用率失真优化模型计算的编码复杂度很高。
264 standard has higher encoding efficiency than previous video coding standards with the rate- distortion opti-mized (RDO) method for mode decision; but its high encoding efficiency is acquired by heavily increasing computation.
264标准采用率失真优化(RDO)技术提高了编码效率,但这是以较高的计算复杂度为代价的。
Since encoding the I- frame by different QP will generate different rate and distortion for the GOP, we perform RDO for the prediction bits and distortion of the GOP to find the best QP of I frame which could gain the tradeoff between the rate and distortion of this GOP.
鉴于I帧量化参数的选择对于整个GOP编码比特及失真的影响,本文通过对整个GOP的预测码率和失真做率失真优化,来选择可以平衡整个GOP编码量和失真的量化参数。
R-D Optimization of Tier_2 Encoder in JPEG2000;
JPEG2000中T2编码器的率失真优化
Rate-Distortion Optimization and Assembly Optimization for H.264 Video Encoder;
H.264视频编码器中的率失真优化与汇编优化
Research on Distortion Estimation and Power Rate Distortion Optimization for Mobile Multimedia Communications
移动多媒体通信中失真估算及功率率失真优化研究
Research on Rate-Distortion Optimization and Rate Control Algorithm Based on H.264/AVC;
基于H.264/AVC的率失真优化和码率控制算法研究
RD-optimized intra refreshing algorithm using HVS characteristic
结合人眼视觉特性的率失真优化帧内刷新算法
Research on Intra Efreshment Algorithm of AVS-M Based on Rate-Distortion Optimization with Losses;
基于有损率失真优化的AVS-M帧内更新算法研究
Integrated Video Error Control Based on Rate-Distortion Optimization;
基于率失真优化的视频差错综合控制技术研究
Joint Source-Channel Coding Based on the Estimated Performance of Wireless Channel
基于无线信道性能预估的率失真优化视频传输
Adaptive RD-optimal coding algorithm for scalable video coding
基于可伸缩视频编码的率失真优化编码算法
Selection Algorithms of Key Reference Pictures for AVS-M Based on Rate-Distortion Optimization
基于率失真优化的AVS-M关键参考帧选择算法
Rate-distortion Optimization Technology and Its Application in Image Coding
率失真优化技术及其在图像编码中的研究
Study and Optimization of CABAC Entropy Coding and Rate-distortion Optimization in H.264/AVC;
H.264/AVC标准中CABAC熵编码和率失真优化技术的研究与优化
Research on Rate-Distortion Optimization Based Rate Allocation in Scalable Video Coding;
基于率失真优化的可伸缩视频编码码率分配研究
Research on RD Optimized Intra Refreshment Algorithm for Region of Interest
基于感兴趣区域的率失真优化帧内刷新算法研究
Error Resilient Video Transcoding Based on Layered Rate Distortion Optimization
一种基于分层率失真优化的容错性视频转码算法
Rate-Distortion Analysis for Feedback-Based Adaptive Reference Picture Selection
基于反馈的自适应参考帧选择的率失真优化分析
Study on the Linearization of Radio Frequency Power Amplifier Based on Predistortion Technology;
基于预失真技术的射频功率放大器线性化研究
Adaptive predistortion for power amplifiers based on block-oriented model
模块化模型功率放大器的自适应预失真