| 1. | Based on the idea of huffman coding , huffman - based certificate revocation tree ( h - crt ) is proposed
基于huffman编码的思想，提出了一种基于huffman的证书撤销树( hcrt ) 。 |
| 2. | The fourth chapter discusses the huffman coding method , anticipating coding method and wavelet transform coding method used in this paper
第四章讨论了课题中采用的霍夫曼编码、预测编码和小波变换编码的理论和方法。 |
| 3. | Coding of audio - visual objects - part 2 : visual . iso iec 14496 - 2 mpeg - 4 visual version 1 , 1999 . 9 lakhani g . optimal huffman coding of dct blocks
Cavlc熵编码器采用上下文技术挖掘块内系数的相关性，获得了较高的编码效率，但其设计来源于对4x4块进行编码。 |
| 4. | In the fifth chapter , author improved huffman coding and lzw coding , which can not only increase the compression ratio , and also make the programe more useful in varied circumstance
在第五章中，作者对huffman编码和lzw编码作了改进，这不仅可以在一定程度上提高压缩比，而且使它们更加灵活通用。 |
| 5. | The software realizes the discrete cosine transform , huffman coding , rle coding and so on . in addition , the prediction , motion estimation and motion compensation are adopted
实现了dct ( discretecosinetransform )变换、 huffman编码及rle编码等，另外还运用了预测编码、运动估计及运动补偿等技术。 |
| 6. | This paper , combined with the task and based on the thorough analyses of the theories and methods of data compression , realize the data compression of the mfl inspection data using huffman coding and wavelet transform coding
本文结合课题，在对数据压缩的原理和方法进行深入分析的基础上，分别利用霍夫曼编码和小波编码等方法实现了管道漏磁检测数据的压缩。 |
| 7. | Based on statistic property of all sub - bands coefficients , this paper gives a lossless image coding scheme including dpgm , huffman coding and run length coding . this scheme reduces the calculating complexity and works highly efficiently
针对图像整数小波分解后的各子带系数的统计特性，提出结合dpcm ， huffman及游程编码的无损图像编码方法，该方法运算简洁，速度快，易于硬件实现。 |
| 8. | The dissertation combine the theory , with using integers dct transform to realize grey image lossless compress with the method of reversible color space integers transform and reversible integers dpcm prediction to realize lossless compress from grey image to color image with huffman coding method via visual c + + program
本文借鉴整数dct变换实现灰度图像无损压缩的理论研究成果，将其与可逆的颜色空间整数变换和可逆的整数dpcm预测相结合，采用哈夫曼编码方法，用vc编程实现了从灰度图像到彩色图像的无损压缩。 |
| 9. | It is well known that jpeg and jpeg2000 are still image compression standard with high performance at present time . so we choose them as our investigative base to compress image . my amendment in jpeg mainly includes self - adaptive huffman coding and reduction of blocking effect
由于jpeg标准所提供的算法还有进一步改进的可能，所以在文中将介绍如何对jpeg标准进行算法改进，主要包括：自适应哈夫曼编码、块效应的消除；针对jpeg2000标准，将主要介绍jpeg2000标准核心算法的实现以及如何用最大位平移方法实现感兴趣区编解码。 |
| 10. | The focus is placed on the investigation of the standard of the encoding algorithm for mpeg audio layer iii , and the analysis of the major four modules in the compression algorithm , including encoding of subband filter bank , psychoacoustics model , quantification and huffman coding , frame packing
重点研究了mpeg音频第层编码的算法标准。详细分析了压缩算法中的四个主要功能模块：子带滤波器组编码，心理声学模型，比特流量化与霍夫曼编码，帧数据流格式化。 |
