This paper proposed a pitch quantization method for low bit-rate speech coding systems.
本文提出了一种适用于低速率语音编码系统的基音周期量化算法。
MPEG-4defines a complete set of FDP and FAP in order to encode the facial object with a low bit-rate.
4通过脸部定义参数FDP和脸部运动参数FAP来对人脸对象进行编码，从而获得码率极低的视频流。
In high bit-rate systems it appears as severe selective fading, whereas it has no significant influence on low bit-rate systems.
这种干扰在微波高速数字系统中表现为严重的选择性衰落，但对低速系统无明显影响。
The results indicate the compression performance of the proposed algorithm is better than that of JPEG2000, especially at low bit-rate compre…
实验数据表明该算法的压缩能力优于JPEG2000，尤其适于低码率压缩。
The potential application of this technique includes low bit-rate video transmission, computer aided instruction, game design, virtual reality and so on.
其潜在的应用领域包括窄带视频传输、计算机辅助教学、游戏制作、虚拟现实等等。
In order to solve the problem of integrality authentication for low bit-rate video, a novel video authentication schema based on the fragile watermark is proposed.
为了解决低码率视频完整性认证问题，提出了一种基于脆弱水印的视频认证方案。
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。
Experiments show that at low bit-rate of image sequence transmission, thus multi-reference frame search algorithm has some advantages in matching accuracy and speed of operation.
实验证明，在低码率序列图像传输中，此多参考帧搜索算法在匹配精度和运算速度方面都有一定的优越性。
Our research has showed that SPIHT performs better than JPEG while the underwater images are coded in low bit rate. SPIHT also has a good progressive transmission characteristic.
并指出基于小波变换的SPIHT编码算法具有对水下图像低比特率编码性能好、可以与纠错技术结合使用等特点。
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。
This paper presents an efficient motion estimation technique for very low bit rate video coding.
提出了一种有效的适用于甚低比特率视频编码的运动估计新技术。
Low bit rate JPEG compressed images usually demonstrate serious blocking effects.
低比特率JPEG压缩图象往往产生严重的方块效应。
High quality, low bit rate image compression method is one of the key technologies to develop downhole video logging instrument.
高清晰度，低比特率的图像压缩技术是研究井下电视的关键技术之一。
So it is necessary to further study the characteristics of video and compression mechanism deeply and to achieve live transmission of videos at very low bit rate.
因此，有必要继续深入研究视频图像的特点与压缩机理，以实现甚低比特率下视频图像实时传输的目标。
First, the theoretical foundations of wavelet based video coder as well as a new video coder for low bit rate video compression used in this research are presented.
首先，论文介绍了基于小波的视频编码器的基本原理，提出一种新的适用于低比特率压缩场景的视频编码器方案。
Therefore, researchers in the related field are constantly seeking new coding method to provide a high quality voice at low bit rate.
因此，人们不断地寻求新的编码方法，以求在低比特率的前提下，提供较高的语音质量。
This annex includes electronic material containing low bit rate LD_CELP implementation test vectors.
本附件包括含有低比特率LD - CELP实现测试矢量的电子资料。
Although the video compression technique has been investigated extensively and developed rapidly, it still can not meet the requirement of live transmission at very low bit rate.
虽然视频压缩技术在当今的信息时代中得到迅猛发展，但目前现有的视频压缩技术仍不能满足甚低比特率下实时传输视频图像的要求。
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 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。
In low bit rate application or high definition player system such as digital cinema, coding artifacts will be very annoying.
在低码率或超高清晰度视频特别是数字电影应用中，压缩噪声会影响观看质量。
An optimized update operator in lifting implementation is proposed to improve scalability under low bit rate and the quality of reconstructed video.
提出了更新算子的优化设计，以提高低码率下视频编码的可扩展性，并取得改善的重建视频质量。
Experiment results show that in low bit rate environment, the new image compression scheme performs better than JPEG in the aspects of perception and PSNR (Peak Signal Noise Ratio).
实验结果表明该算法在低码率下，相比jpeg，获得了在视觉效果和峰值信噪比方面更好的恢复图像质量。
Block artifact is one of major causations which reduce the quality of pictures in video coding, especially at the time of low bit rate.
块效应是视频编码中影响编码质量的一个重要问题，特别在低码率情况下尤为明显。
The coding method in low bit rate discussed in this paper is a hybrid encoding architecture, which combines global motion compensation and local motion compensation coding.
采用的低码率视频编码方法是以全局运动补偿和局部运动补偿为核心的混合编码方法。
Interframe prediction coding algorithm for narrow band low bit rate image sequence is presented in this paper.
主要研究适于窄带低码率活动图像的帧间预测编码算法。
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。
This transform algorithm saves the operation time due to without quantization. It can get the same compressed result and even better performance in the case of low bit rate compared with DCT.
通过与传统的离散余弦变换（DCT）进行比较，表明了APIDCBT算法可以不用量化表，节省运算时间，与DCT可达到同样的压缩效果，并且在低码率情况下优于DCT。
High speed and low bit rate coding is very important in dynamic image compression.
进行动态图像压缩时如何兼顾较高的编码速度与较低的码率成为编码的关键。
High speed and low bit rate coding is very important in dynamic image compression.
进行动态图像压缩时如何兼顾较高的编码速度与较低的码率成为编码的关键。
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