块截短编码(BTC)是一种快速有效的有损图像编码技术。
Block truncation coding (BTC) is an efficient and fast lossy image coding technique.
x射线编码三维成像系统中，减少观察层上的重叠噪声是提高图像信噪比的有效方法。
In a three dimensional X ray coded imaging system, it is effective method to reduce the reduplicate noise of a certain layer image for enhancing the signal noise rate.
此判别法表明，相邻编码帧宏块条码率的频域互相关能够有效反映图像活动性变化的特点。
The correlation of adjacent slices bitrates in frequency domain can effectively reflect the activity of the motion pictures.
实验结果表明，这种方法大大提高了编码速度，而且能有效地压缩图像数据。
Experimental results indicate that images could be significantly compressed with our method, while encoding time is greatly reduced.
它是去除视频数据中时间冗余度的有效方法，它的性能好坏直接影响编码的效率和图像的质量。
It is an effective method to remove the video data time redundancy, which directly affects the performance of coding efficiency and image quality.
有效的编码压缩算法是图像数据存储和传输的关键。
Efficient encoding algorithm is the key for image to store and transmission.
为降低比特率，本文提出四种有效的BTC算法，以降低对每个图像块的两个量化电平和位平面编码所需的比特数。
In order to reduce the bit rate, on the one hand, simple look-up-table methods are presented to code the BTC quantized data of a block.
为了达到令人满意的视觉和传输效果，对图像数据进行有效的压缩编码，是需要解决的关键技术之一。
In order to obtain satisfying vision and transmission effect, effective image data compress coding, is the key technology to solve.
文章介绍了一种用于图像边缘提取和编码的新算法，并提出一种链码文件的有效组织方法，同时对图像处理过程中遇到的消噪问题进行讨论。
This paper introduces a new algorithm for image edge extraction and coding, an efficient method for code file organization is presented, meanwhile, the noise suppression problem is discussed.
由于二值图像是一种灰度图像，所以如果能够找到一种有效压缩这类图像的方法，将对灰度图像编码有着很大的推动作用。
As the binary image is a popular kind of gray images, if we can focus on an effective method of binary images compressions, it may make gray images coding tremendous boost.
经试验证明，这是一种有效的编码方法，在相同压缩比率下提高了重建图像的峰值信噪比PSNR。
Experimental results show that the improved hybrid image coding can improve the PSNR of the rebuilded image at the same compression ratio.
通过分析小波分解作为分形图像编码预分解的有效性和小波域内仿射变换的特性，提出一种基于分类的小波域内的分形图像编码方法。
With analyzing the availability of fractal image coding and the characters of affine transform in wavelet domain, a fractal image coding approach based on classifications is presented in this paper.
实验结果表明，算法可以在图像质量基本保持不变的基础上，有效地降低编码的复杂度。
The experimental results show that, the proposed algorithm can reduce encoder complexity significantly while coding quality is only negligible decreased.
该方法由错误弹性图像编码和后处理错误隐匿两部分组成，错误弹性图像编码利用图像块头有效地避免了错误在图像块之间的蔓延。
It consists of error-resilient image coding and post-processing error concealment. The former prevents errors from propagating across image block boundaries with little overhead.
理论研究表明，初级视觉系统可以有效地编码自然视觉图像信息。
The efficient coding hypothesis suggests that the early visual system is optimized to represent stimuli in the natural environment.
该方法利用原图像的均值图像设计编码码书，利用高阶统计量对域块进行分类，可以有效地减少域池中域块之间的相关性。
This method USES the mean image to generate the domain pool, then, classes the domain blocks according to their high order statistics.
而多线程机制的使用，使得应用程序的编码、传输、解码同时进行，有效地提高了图像传输效率。
In the same way, the application of multithreading can make the progress of encode, transmission, decode happen together, and which advance the efficiency of image transmission.
由此可见，应用u -正交变换对图像进行编码压缩是一类行之有效的方法，并有望在视频编码中得到应用。
So it is effective to apply U-transform, which may be used extensively in the application of video coding, to the field of image compression.
介绍了图像工程领域里新颖有效的嵌入式零树小波ezw图像编码方法。
An image coding method is introduced in the field of image engineering which is a new and efficient image coding technique i. e. Embedded zero-tree wavelet EZW image coding.
本发明方法在保持良好的图像质量基础上，有效提高了图像编码速率。
The method of the invention effectively increases the image encoding speed on the base that the excellent image quality is kept.
本发明方法在保持良好的图像质量基础上，有效提高了图像编码速率。
The method of the invention effectively increases the image encoding speed on the base that the excellent image quality is kept.
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