并基于新模型提出了一种增量式码率控制算法。
Furthermore, an incremental rate control algorithm is proposed.
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.
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.
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.
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.
最后,本文讨论低延时下对于H。264码率控制算法的影响以及改进的方案。
At last, in this thesis, we study the impact of low delay constraint in H. 264 rate control and its improvements.
针对H . 264码率控制模型的不足,提出了一种新的宏块层的码率控制算法。
For the lack of rate control model in H. 264, a new macro-block layer rate control algorithm for H. 264 is proposed.
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.
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.
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.
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.
该方法可使码率控制算法具有更高的效率,在低码率的情况下可以提供更好的图像质量,降低了传输延迟。
As a result, the new strategy is more efficient and can provide higher quality of image in low-delay communications, thus reducing the transmission delay.
本文讨论一种基于新型编码复杂的尺度的码率控制算法及其改进机制,发现在宏块级编码时可以绕开“蛋鸡悖论”。
In this thesis, a new rate control Algorithm based on novel coding complexity metric and the relative improvement scheme is discussed.
跳帧策略是码率控制算法中防止缓冲器上溢的手段,有效的跳帧算法可以保护图像序列中的重要细节,优化图像质量。
Frame skipping strategy is used to prevent the buffer from overflowing. An efficient frame skipping algorithm can protect the important details in the video sequences and optimize the picture quality.
同时,论文提出的码率控制算法还对宏块层的率失真优化过程做了改进,根据每个宏块的预测目标比特数来调整率失真优化的拉格朗日系数,使帧层码率控制效果更优。
At the same time, this paper also improves the process of RDO in the macroblock layer. Based on the prediction bits of the macroblock, the Lagrange coefficient has been modified adaptively.
实验结果表明,与JVT-H017提案相比,改进算法可以更精确地分配目标比特和控制码率,并能获得较高的PSNR。
Simulation results show that, comparing with JVT-H017, the proposed method can allocate the target bits and control the rate more accurately, and obtain a higher PSNR.
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.
为提高实时视频编码的图像质量,提出了一种低复杂度单通道视频编码的可变码率(VBR)控制算法。
To improve the image quality of real time video encoder, a low complexity variant bit rate (VBR) control algorithm for single-pass video encoding was proposed.
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.
AAC的码率失真控制算法需要多次检索霍夫曼码书以获得当前状态比特消耗的参考值。
Rate-distortion control algorithm in MPEG-4 AAC(Advanced Audio Coding) needs to search Huffman code books many times to obtain the reference number of the current consumed bits.
实验仿真结果显示,本文的算法在有效的控制输出码率稳定的同时,有效的提高的立体视频的立体感。
The experiment results demonstrate that the proposed scheme can improve perspective of the stereo video as well as control the stability of output rate effectively.
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.
实验结果表明:与JM 8.6原算法比较,该算法能在提高码率控制精度的同时,提高图像的恢复质量。
The experimental results show that compared to JM8.6 original algorithm, the new algorithm can increase the accuracy of rate control and the image quality of the restoration at the same time.
实验结果表明:与JM 8.6原算法比较,该算法能在提高码率控制精度的同时,提高图像的恢复质量。
The experimental results show that compared to JM8.6 original algorithm, the new algorithm can increase the accuracy of rate control and the image quality of the restoration at the same time.
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