The quality of image processing can be significantly improved by exploiting the correlation among image wavelet coefficients and modeling the statistics for these coefficients.
研究图像小波系数间的统计相关性并建立适当的模型，可以显著提高图像处理的质量。
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.
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。
For the image high-frequency part, use the new evaluation factor - wavelet neighborhood information to choose the ultimate wavelet high-frequency coefficients.
使用由方差和平均梯度构造的新的评价因子——小波邻域信息量作为融合规则选取小波高频系数。
The algorithm is analyzed in detail, and experiment result again shows that the distribution of image wavelet transform coefficients can be well modeled using the generalized Gaussian distribution.
文章对算法进行了详细的理论分析和推导，实验结果进一步验证了用广义高斯分布描述图像小波变换系数统计特性的合理性。
The two new image zooming methods, wavelet zooming with enhanced coefficients and exchanged-interpolation-operator with median filter are studied in this paper.
对两种新图像放大算法，增强系数小波放大方法和带中值滤波的邻域交换内插方法进行了研究。
A regularized image restoration is the optimization for some conditional constraint, and the selection of wavelet coefficients based Bayesian statistic is on the image random field view.
正则化图像恢复是条件约束的最优化问题，而小波系数的贝叶斯统计选择是基于图像的随机场观点。
Finally, it gave an image de-noising algorithm of coherence enhancing diffusion, which used wavelet coefficients to estimate the image edge according to the wavelets time-frequent analysis function.
针对相干增强扩散计算扩散矩阵较慢的缺点，提出了一种用小波系数估计图像边缘方向的相干增强扩散图像降噪算法。
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.
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。
This paper borrows the idea from spread spectrum watermark, quantizes the wavelet transform coefficients the copyright protected image to produce a binary sequence, which is just the watermark.
本文的水印方法借助扩频水印的思想，通过量化函数对版权保护图像的小波变换系数进行量化，产生的二值序列作为水印。
Analyze the space correlation in the single differential image: sample the wavelet coefficients with window and segment the image into the equal blocks.
分析单幅差分图像的空间相关性：使用采样窗口对单幅差分图像的小波域采样并将图像分割成若干个均匀分布的小块。
Have analyzed properties of wavelet coefficients obtained from an image through wavelet transform, and discussed how to select wavelet basis to optimize wavelet coefficients.
分析了图像小波变换后小波系数的特征，讨论了优化小波系数的小波基选择问题。
While efficient algorithms exist for coding the transform coefficient magnitudes, current wavelet image coding algorithms are not as efficient at coding the sign of the transform coefficients.
虽然当前对小波变换系数幅值进行编码已有了比较高效的算法，但是现行的小波编码算法对小波变换系数符号的编码并非如同对幅值的编码那么有效。
This paper introduces an improved classification algorithm of wavelet coefficients in image coding using EZW.
本文提出了图像EZW编码中一种新的分类算法。
And then addressing SAR image speckle denoising, this dissertation proposed a new method based on bivariate shrinkage function combined with enhancement of wavelet significant coefficients.
其次针对SAR图像相干斑抑制问题，提出一种双变量收缩函数与小波系数显著性增强相结合的SAR图像的斑点抑制算法。
And then addressing SAR image speckle denoising, this dissertation proposed a new method based on bivariate shrinkage function combined with enhancement of wavelet significant coefficients.
其次针对SAR图像相干斑抑制问题，提出一种双变量收缩函数与小波系数显著性增强相结合的SAR图像的斑点抑制算法。
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