要解决这些问题就需要研究编码器的码率控制。
For the problem solving, the thesis study rate control of the video encoder.
然后，采用宏块层码率控制策略来分配目标比特；
Secondly, macroblock layer rate control strategy is used to distribute target bits.
码率控制是恒定码率视频压缩编码系统的一个关键研究课题。
Bit-rate control is a key topic in the constant bit - rate video compression coding system.
给出了一种结合码字预分配和直接缓冲器控制的码率控制方法。
In this paper a rate control method is studied that combines pre-distribution of bits with direct buffer control.
最后，本文提出了一种适用于前后景分割编码的码率控制算法。
Finally, we proposed a rate control scheme which is appropriate for the foreground and background segmentation encoding.
码率控制技术对提高和平滑解码视频质量起着至关重要的作用。
Rate control scheme plays an important role in improving and smoothing the decoding video quality.
首先，本文介绍码率控制算法的应用环境——各种视频编码协议。
Firstly, we introduce the video coding standard where the rate control algorithm is used.
为解决这两个问题，本文提出了一种基于运动检测的码率控制算法。
To solve the aforementioned problems, this thesis proposed a rate-control algorithm based on motion-detection.
在DCT变换系数的分布模型上，本文提出了一种码率控制的新思路。
Based on the distribution of DCT coefficients, a new rate control idea is proposed in this paper.
提出了一种基于率失真理论的实时码率控制算法(RDTRTRC)。
A novel real-time rate control algorithm based on the rate distortion theory (RDTRTRC) is proposed.
因此，几乎每一个视频标准都相应有自己的一个或者多个码率控制策略。
Therefore, almost every video coding standard has one rate control strategy and even more.
通常码率控制算法使用一定的率失真模型来决策量化参数从而控制码率。
Generally, the rate distortion model is employed to compute quantization parameter for the controlling bit rate.
文章提出一种新的场景变换检测算法，进一步给出一种新的码率控制策略。
This proposes a new scene change detection algorithm, and also proposes a rate control scheme.
传统码率控制(RC)大多以客观失真作为失真度量，无法得到最优的主观质量。
Conventional Rate Control (RC) schemes take mostly objective metric as distortion measurement, which can not acquire optimal subjective quality.
传统的码率控制算法为R-D模型，要么具有很高的计算复杂度，要么算法不够精确。
The traditional rate control algorithm is the R-D model. These algorithms either have high complexity or lack precision.
在视频编码中，码率控制的目的是：在满足带宽约束的条件下，提高编码图像的质量。
In video coding, the purpose of rate control is to improve picture quality while subject to the bandwidth constraint.
作为对视频转换编码及码率控制研究的基础，本文首先介绍了几种主要的视频编码标准。
As the basis of the following research on transcoding and rate control, several related video coding standards are introduced in this thesis first.
最后对全文工作进行总结，并对视频传输中的码率控制技术的未来发展趋势进行了展望。
Finally, give a summary of this paper. The state of arts and possible new directions of rate control are stated.
介绍了因特网上一种端到端的MPEG - 4视频网络传输结构的自适应码率控制方案。
This paper addresses an adaptive rate control scheme for MPEG-4 video based on an end-to-end architecture over Internet.
提出一种面向立体视频的比特分配与码率控制算法以提高立体视频的编码效率和码流可靠性。
A new bit-allocation and rate-control algorithm for stereo video coding was proposed to improve its coding efficiency and stream reliability.
由于我们的算法具有较强的去耦合性，因此可以基本沿用原有的码率控制模型和各种参数设置。
Since our rate control model decouples between layers, we can simply inherit the original model and parameter Settings.
码率控制是视频通信系统中的关键环节之一，主要用于调控编码视频的输出质量和内容复杂度。
As a kernel process of a video communication system, the rate control algorithm mainly used to control the output quality and content complexity.
论文重点讨论了无线网络中基于TMN11的改进型帧率控制算法及改进型宏块层码率控制算法。
This article discusses the modified frame rate control algorithm based on TMN11 and the modified macroblock-layer rate control algorithm.
算法对传统二次率失真模型进行了改进，并结合人眼的立体视觉特性，提出了新的码率控制策略。
The conventional quadric rate-distortion model was improved and a new one was introduced by incorporating the human visual system (HVS) characteristics.
基于KOD系统的特点，分析了流服务器和客户端中各个模块的作用，以及内容制作中的码率控制。
According to the KOD system traits, it also analyzed the modules in the streaming server and client, as well as the rate control for the content produce.
然后，我们对码率控制问题作了详细的定义并深入分析了H.264/SVC码率控制的技术难点。
Secondly, we define the rate control problem in details and give an in-depth analysis of the difficulties in rate control for H. 264/SVC.
在以上研究的基础上，用C语言实现了基于有效比特位编码模型和率失真优化技术的码率控制算法。
With the research above, a new rate control algorithm is realized by c, which is based on the valid-bit-number coding model and the rate-distortion optimization technique.
传统视频编码器需要增加大量额外的存储器和电路完成以运动检测功能，且码率控制算法也比较复杂。
Conventional video encoder needs large amount of extra memory and circuit to implement the motion-detection function, and has a large computational complexity on rate-control function.
为实现卫星自维护遥操作系统中稳定可靠的视频反馈目标，提出一种基于分层码率控制的视频传输策略。
To realize the stable video feedback in the satellite self-servicing telerobotics system, a scheme based on scalable bit rate control is proposed.
为实现卫星自维护遥操作系统中稳定可靠的视频反馈目标，提出一种基于分层码率控制的视频传输策略。
To realize the stable video feedback in the satellite self-servicing telerobotics system, a scheme based on scalable bit rate control is proposed.
应用推荐