Bit-rate control is a key topic in the constant bit - rate video compression coding system.
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。
Most of the bit-rate control schemes in video-compression standards are designed for medium and high bit - rate conditions, while do not work well for low bit-rate.
在大多数视频压缩标准中,码率控制方法都是针对中高码率情况而设计的,而在较低码率情况下的工作情况都不够理想。
In wireless ATM network, an efficient error control mechanism has to be used because of the high bit error rate and burst nature of bit errors.
由于无线信道的高误码率和突发错误的特性,在无线at M中必须使用有效的差错控制机制。
This paper introduces a direct digital control system for position and rate based on 16 bit microprosessor.
本文介绍一种用16位单板机实现精密位置、速率的直接数字控制系统。
This paper proposes a new rate control algorithm which can achieve a constant bit rate when coding asynchronous video objects.
针对异步视频对象编码,提出了一种速率控制算法,以达到恒定目标比特率。
This paper proposes an approach to design a rate based flow control mechanism in order to regulate the Available Bit Rate (ABR) traffic and effectively control congestion of the networks.
对此,本文提出一种方法来设计基于速率的流量控制机制以便调节ABR服务并有效地控制网络拥塞。
A bit stream control mechanism is introduced to maintain the data rate after the embedding manipulation.
采用位流控制机制来保证嵌入水印后的数据率。
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.
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 exactly calculating the build rate of building motor assemblies and others is a key point of correct prediction and control for bit trajectory in horizontal drilling.
水平井井眼轨道预测和控制问题的技术关键是准确计算各种造斜工具的造斜能力。
The quality of JPEG2000 image is seriously degraded when the bit error rate becomes rather high, so RS coding is added in the system for error control.
针对在较高误码率条件下JPEG2000图像传输质量急剧下降的缺陷,引入RS编码进行差错控制。
It provides optimal dynamic bit allocation for sub-bands of DWT and realizes adaptive quantization for wavelet coefficients. At last, it provides exact rate control for the coder.
该方法基于率失真曲线的精确理论模型,对小波分解后的不同子带提供最优的动态比特分配从而实现了小波系数的自适应量化编码,最后还实现了码率控制。
Variable bit rate (VBR) compressed video exhibits significant rate variability, this burstiness complicates the network bandwidth reserve, admission control and etc.
预存储的变比特率(VBR)压缩的视频网上流式传输,提供实时视频服务。
In order to decrease the Bit Error Rate (BER) of transmission information, this paper studies an adaptive power control algorithm for uplink against the power control module of TD-SCDMA system.
为了更好的降低系统传输信息的误比特率(BER),本文针对TD - SCDMA系统的功率控制模块,研究一种适用于反向链路的自适应功率控制算法。
Rate control techniques must then be employed to regulate and control the output bit rates of video sources in the network to achieve the best trade-off between quality and bandwidth utilization.
这就需要采用码率控制技术来调整并控制视频源的输出比特率,以获得在质量和带宽利用间的最佳均衡。
This paper focuses on the ABR(Available bit rate) congestion control algorithm in the satellite ATM network based on onboard processing, which is implemented by using the traffic prediction.
本文主要研究基于星上处理的卫星ATM网的ABR流量控制,它通过对流量的长时预测来达到控制目的。
This protocol can be used between two low bit rate multimedia terminals, or between a low bit rate multimedia terminal and a multipoint control unit or an interworking adapter.
本协议可用于两个低比特率多媒体终端之间,或一个低比特率多媒体终端与一个多点控制单元或一个交互操作适配器之间。
A new bit-allocation and rate-control algorithm for stereo video coding was proposed to improve its coding efficiency and stream reliability.
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。
Due to the limited bandwidth of communication channel, it is necessary to control the bit rate output of video coding.
由于通信信道带宽有限,有必要对视频编码的输出码率进行控制。
T2 encoder sends feedback to control the coding depth by the accumulated bit rate and complete the rate-distortion optimization truncation.
T2编码器由已编码比特率自适应地反馈控制编码深度,完成优化截取。
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。
This paper research the MPEG-4 standard and realize the software prototype of the MPEG-4 video codec. The paper emphasize two key techniques in MPEG-4 encoder: Motion Estimation and Bit Rate Control.
本论文研究了MPEG - 4标准,在实现MPEG - 4视频编解码器软件原型的基础上,重点研究了编码过程中的两项关键技术:运动估计和码率控制。
Since the bandwidth is limited in video communications, we must control the bit rate in a certain range to improve the quality of decoded pictures under the predefined target bit rate.
对于视频通信来说,由于通信带宽有限,必须将码率控制在一定的范围,以达到在给定目标码率的条件下,尽可能达到高质量的解码图像。
The research in this paper is based on the projects which are "A Low Bit Rate Multimedia Remote Instruction System" and "A Video-Audio Monitoring-Control and Alarm System".
本论文的研究来源于科研项目“低比特率多媒体远程教学系统”及“基于网上的视音频监控及报警系统”。
Simulation results indicate that the new algorithm can control the target bit rate more accurately and effectively the video coding quality.
实验表明新的算法在视频的编码质量和实际编码比特率两个方面都有所改善。
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.
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.
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。
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