根据遥感图像编码的特殊性，提出了一种感兴趣系数编码算法。
A novel image coding algorithm based on coefficients of interest is proposed in terms of the special needs of remote-sensing images.
并选择了9/7-F、9/7-M和5/3三种传统用于图像压缩的小波来用提升方法实现从整数到整数的小波，为后面进一步研究系数编码做好准备。
Then, the 9/7-F, 9/7-M and 5/3 wavelets which use generally in image compression, are selected for factoring them into lifting steps so as to study the coefficients coding.
尤其在图像编码中，少量系数的错误不会对图像的视觉效果造成太大影响。
Especially in image coding, a few coefficient errors won't influence vision effect much.
EBCOT采用的并行运算和动态内存控制(DMC)结构，在保证编码速度的前提下，最大限度减小了片内小波系数缓存量和访问频率。
The EBCOT design USES parallel processing and dynamic memory control (DMC) architecture, which greatly speeds up the coding process and achieves higher hardware utilization.
针对图像小波系数在各子带内显著性分布的聚簇特征，提出了在SPIHT算法的输出环节引入游程编码。
After the clustering characteristics of image wavelet coefficients' significance distribution in each sub-band was analyzed, run-length coding (RLC) was introduced into SPIHT's output stage.
低频重要系数采用无失真编码压缩。
The low frequency important coefficients were coded by undistorted compression.
提出了一种基于DCT系数分布特征的自适应区域编码方法。
This paper proposes a adaptive region coding method, which is based on distributing characters of DCT coefficients.
最后，对变换系数进行熵编码压缩。
Finally, the transformed coefficients will be compressed effectively with entropy coding.
ZBP不仅充分利用了零树符号之间的相关性，而且从位数据的层面上挖掘出了小波系数值之间的相关性，从而提高了算术编码的性能。
ZBP exploits the correlation among the Zerotree symbols and the bit data of wavelet coefficients, so the efficiency of arithmetic coding is improved.
变换系数采用非均匀标量量化和熵编码。
DCT coefficients were quantized through nonlinear scalar quantization and entropy coding.
该文提出了快速分形图像编码的一种基于相关系数的编码方案，不需要改变现有的分形解码过程。
This paper proposes a correlation-coefficients-based scheme for fast fractal image encoding, which does not need to change the existing fractal decoding procedure.
利用小波分解对惠更斯表面的时域切向场分布进行分解，存储经过阈值量化后的小波系数达到压缩编码的目的。
The time domain field distribution on the surface of Huygens' box was decomposed using wavelet, and the quantified coefficient of the wavelet decomposition was saved.
其中抽头个数，滤波器系数的设置以及阈值都是随编码体例的分歧而各异的。
Among them tap several, the setting of filter coefficient and threshold value are those who follow encode pattern is different and of each different.
在尽量减少时钟消耗的前提下，此解码器可以解码每个变换块中变换系数的熵编码码流，并将结果按照块扫描顺序并行输出。
While minimizing the use of clock cycles, it could decode the coded stream of transform coefficients in each block and output the decoded coefficients in zigzag scanning order.
所述初始化表具有使用可缩放视频编码的先前经编码帧或片段的有效系数进程的统计数据。
The initialization tables have statistics of a significant coefficient pass for a previous encoded frame or slice using scalable video coding.
本文是在对小波变换后系数分布特点的研究之上，提出了一种新的基于小波变换的分形图像压缩编码算法。
These thesis put forward a new method of fractal image encodings of compression based on wavelets under the research of distribution of coefficients after wavelets translation.
首先确定初始阈值，并构造小波系数的关系矩阵，然后结合关系矩阵对高频子带系数进行逐次逼近量化编码。
Finally, the initial threshold is identified and relation matrix is constructed, and the wavelet coefficients of the high frequency subbands are encoded progressively by using relation matrix.
本文主要研究如何利用图像小波变换后系数间的相关性实现小波系数的分级编码和传输，从而实现图像的渐近传输技术。
This paper mainly study how to realize wavelet coefficient layered coding and transmission and image data progressive transmission using the correlation of the transformed image.
率失真优化是按照率失真斜率递减的顺序编码系数位，最先编码的位具有最大的率失真斜率，每编码一位都会使失真减少最大。
In rate-distortion optimization coefficients are encoded with a decreasing R-D slope, so the first coding bits are the ones having the steepest R-D slope.
实验结果显示，该文方法的编码速度约为每时钟编码一个系数，比已有技术提高约15倍。
The test results show that above technique is able to encode about one coefficient per clock-cycle, 15times existed techniques.
主数据包括比例系数和霍夫曼编码位。
提出了一种基于形态膨胀运算的对子带间重要系数位置信息进行联合编码的新型小波图像压缩编码算法。
A new wavelet image compression algorithm was proposed based on morphological dilation and the positional information of the important coefficient couplet belt.
通过研究EBCOT编码原理和通道并行算法的编码过程，提出了双上下文窗口位并行的EBCOT系数位建模方法，详细说明了使用该算法的系数位建模系统的硬件结构。
After the detailed analysis of EBCOT algorithm and pass-parallel coding technique, a dual context window bit-parallel coding method and its architecture for hardware implementation are proposed.
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。
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.
该方案结合逐次逼近量化的思想根据图像小波分解后系数的多分辨特点来模拟人类视觉系统特性，并在图像试验中结合感兴趣区域进行编码。
The scheme simulates HVS with the idea of SAQ based on the character of MRA of image coefficients after wavelet transform, which is put into experiments with ROI encoding.
针对水声图像特点采用了DC系数直接编码。
DC coefficient encoding employs direct encoding in accordance with characteristics of underwater image.
本文对一维DCT变换压缩编码中变换域系数二次量化引起的图象损伤进行了频域和空间域分析，得出了一些有用的结论。
The image damage by transform coefficients quantization in ID-DCT transform compression coding is analysed on frequency domain and space domain. Some useful results are obtained.
从二值图像延伸到灰度图像，我们根据小波变换后小波系数的特点，将行程编码算法进行了改进，结合小波变换对灰度图像进行编码。
We code the gray images combined improved run-length encoding algorithm with wavelet transform according to the characteristics of the wavelet transform coefficients.
由于LL子带占据变换系数的大部分能量，提出一种基于邻域系数的梯度的预测编码单独编码LL子带。
Predictive coding based on the grads of neighbor coefficient is proposed to encode LL subband because LL subband occupied a majority of energy of transform coefficient.
由于LL子带占据变换系数的大部分能量，提出一种基于邻域系数的梯度的预测编码单独编码LL子带。
Predictive coding based on the grads of neighbor coefficient is proposed to encode LL subband because LL subband occupied a majority of energy of transform coefficient.
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