Simulation results reveal that it can achieve better performance than conventional DCT coding scheme and SA DCT method in low bit rate coding.
实验结果证明,在低码率下,使用子带dct对任意形状的VOP进行编码的方法优于传统的DCT方法和SA DCT方法。
Using different RCPC rate coding, different channel protection capabilities are applied to the bitstream components with different importance.
对JPEG2000比特流中重要性不同的部分,用不同编码速率的RCPC信道编码给以不同程度的信道保护。
Use the predominance of new programmable logic chip on digital signal domain lucubrate on the implement with FPGA of speech signal low bit rate coding.
本文利用新一代可编制逻辑器件在数字信号处理领域的优势,对语音信号低码率编码的FPGA实现进行了深入研究。
The research of video coding is mainly focused on two aspects in recent years, one is the very low-bit rate coding, the other is the video coding based on objects.
近几年来,视频编码的研究集中在两个方面,一是低比特率编码,二是基于对象的视频编码。
Performance analysis of algorithms. This algorithm can be obtained to achieve the highest quality encoding, the search points less, PNSR is also high. Low bit rate coding can be realized.
并在MATLAB中进行仿真,对算法进行了性能分析,得出了此算法能达到最高质量的编码,搜索点少,PNSR也较高,可实现低码率编码。
Interframe prediction is key to video compression and can effectively eliminate the time redundancy of video coding, reduce coding rate and enhance coding efficiency.
帧间预测是视频压缩的关键技术之一,能有效消除视频编码中的时间冗余,降低编码码率,提高编码效率。
FEC consumes significant bandwidth: depending on which coding rate is chosen, a number of coding bits are transmitted along with the? Data 'bits.
前向纠错需要占用大量的带宽:这取决于编码速率选择,大量的编码比特和数据比特一起传输。
Videotranscoding has three means: code rate conversion, resolution conversion, conversion between coding standard.
具体的转换方式有三种:码率转换、分辨率转换、编码制式的转换。
As one of the current most potential low bit rate speech coding schemes, waveform interpolation model with its high performance has been paid more and more attention.
波形内插语音编码模型作为当今最具潜力的低速率语音编码方案之一,因其良好的性能,越来越受到人们的重视。
All of these reduce efficiently the coding bit rate.
这些方法有效地降低了编码位率。
A fast block matching motion estimation algorithm for low bit rate video coding is proposed.
提出一个用于低比特率视频编码的快速块匹配运动估计算法。
Objective to explore a coding nursing diagnostic method for melioidosis which is convenient and effective, in order to improve the quality of care, and decrease death rate.
目的探索一种对类鼻疽病简便、有效的编码护理诊断方法,以提高护理质量,减少死亡率。
This paper proposes a new rate control scheme to increase the coding efficiency for MPEG systems.
本文提出一种新的用于提高MPEG系统编码效率的速率控制方案。
Then prediction errors were quantized properly to reduce coding rate further.
然后对预测误差进行量化,以进一步降低编码率。
A new method for predetermination of all-zero blocks in low rate video coding is proposed, which is based on characters of discrete cosine transform (DCT) and quantization.
该文根据离散余弦变换(DCT)和量化运算的特点,提出了一种新的用于低比特率视频编码的全零块预先判别方法。
In video coding, the purpose of rate control is to improve picture quality while subject to the bandwidth constraint.
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。
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。
A modified low bit rate sinusoidal transform coding algorithm (STC) is presented.
提出了低码率正弦变换编码算法(STC)的改进算法。
This paper reviews the research works on the statistical characteristics and modeling of variable bit rate video coding in ATM environment.
本文就ATM环境下变速率视频编码的统计特性及其模型研究作了综合性评述。
As the basis of the following research on transcoding and rate control, several related video coding standards are introduced in this thesis first.
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。
The fundamental of speech coding is the fact that how to get better quality of reconstructed speech and ensure the less time delay and proper operational complexity at the given coding rate.
语音编码的基本问题就是在给定编码速率的条件下如何得到尽可能好的重建语音质量并保证尽可能小的编解码时延和适当的运算复杂度。
Firstly, we introduce the video coding standard where the rate control algorithm is used.
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。
Due to the intense change of the transmission environment, the mobile communication system can not work in the optimal source coding rate and channel coding rate.
由于传输环境的剧烈变化,移动通信系统不能工作在最佳的信源编码速率和信道编码速率。
Therefore what has been studied should be a promotion to make very low bit rate video coding work in practice and in wide use.
相信所做的这些工作对甚低码率视频图像编码的实际应用和推广将起到推动作用。
The simulation results show that the algorithm have not only cut down the average coding time, but also reduced the average coding bit rate.
测试结果表明该算法在减少平均编码时间的同时,也降低了平均编码比特率。
The data transmission rate with correlative coding can be twice as high as that with AMI or HDB3, thus may improving the efficiency of seismic exploration.
相关编码信号比AMI或HDB3编码的信号的数据传输速率可以提高一倍,从而提高地震勘探的效率。
According to the demand of information transmission in online video teaching, some key techniques such as streaming coding and bite rate control for network bandwidth are studied.
针对网上教学视频信息传输的需求,对视频传输所涉及的流媒体编码、网络带宽自适应等一些关键技术做了研究。
In the meantime, we evaluate and analyze objectively the robustness of the low bit rate speech coding algorithms with our own objective evaluating system of the speech quality.
并利用所构建的语音质量客观评价平台,对语音增强低速语音编码算法的抗背景噪声性能进行了客观评估与分析。
The mobile communication system can furthest fulfill its function if variable rate speech coding is adopted, and the very core of this coding is the adaptive technology.
在移动通信系统中采用变速率语音压缩编码,可以最大限度地发挥系统的效能,而变速率语音编码的核心技术就是自适应技术。
Using this new scheme, higher diversity order and coding gain can be achieved than STBC at the same coding rate.
这种编码在相同的码速率下,实现了比stbc更大的分集度和更高的编码增益。
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