Description: 基于DVB-c欧洲标准的有线数字标准，实现差分编码和解码，可以实现该功能-based on DVB-c European standards Digital Cable standards, the differential coding and decoding, can achieve the functional Platform: |
Size: 16914 |
Author:孙月 |
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Description: 基于DVB-c欧洲标准的有线数字标准，实现差分编码和解码，可以实现该功能-based on DVB-c European standards Digital Cable standards, the differential coding and decoding, can achieve the functional Platform: |
Size: 16384 |
Author:孙月 |
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Description: Sobel算子：是一种空域微分算子，可以通过它锐化图象。
将图象分块(8*8),作DCT变换,并作IDCT：DCT是一种可分离图象变换，用来图象压缩编码。-Sobel Operator : airspace is a differential operator, through its image sharpening. Image will block (8* 8), for the DCT and IDCT for : DCT is a separable Image Transform, used to image compression coding. Platform: |
Size: 2048 |
Author:xuhua |
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Description: 转,matlab(边界提取,链码生成,差分链码生成及频率向量生成程序)具有旋转不变性了的链码-Turn, matlab (border extraction, chain code generation, differential chain code generation and the frequency of vector generation procedure) has the rotation invariance of the chain code Platform: |
Size: 6144 |
Author:陈娟 |
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Description: 一篇西安电子科技大学的硕士论文，讨论了各种空时编码技术的设计准则和编译码方案，分析了不需要信道状态信息的差分酉空时编码调制技术，给出了仿真结果。-Xidian University, a master s thesis, discussed a wide range of space-time coding technology, design criteria and codec programs analyzed do not need to channel state information of Differential Unitary Space-Time code modulation technology, the simulation results. Platform: |
Size: 2368512 |
Author:fisher |
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Description: 一种二值图象无损压缩算法
南京理工大学电光学院
【摘 要】利用稀疏矩阵和差分编码对二色图像进行压缩保存，在通过图像的0,1矩阵建立，矩阵一维化，差分量化编码，写文件来压缩。在电子档案存储，CAD制图信息化存储有极高的应用价值。
【关键字】计算机 二值图像 稀疏矩阵 无损压缩 编码
-A binary image lossless compression algorithm for electro-optic Nanjing University of Technology and Engineering College 【Abstract】 using sparse matrix and differential coding of the second color image compression preservation, through the establishment of images 0,1 matrix, matrix of one-dimensional, differential quantization encoding and writing to compressed files. In the electronic file storage, CAD drawing information storage high application value. 【Keywords】 computer Sparse binary image lossless compression encoding Platform: |
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Author:胡赟星 |
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Description: 根据空时分组编码的特性及缺陷,考虑使用差分空时编码,该程序实现差分空时分组编码的性能仿真,是根据Space–Time Block Coding for Wireless一书的性能仿真-Space-time block coding according to the characteristics and defects, to consider the use of differential space-time coding, the program realize differential space-time block coding performance simulation is based on Space-Time Block Coding for Wireless book one of the performance simulation Platform: |
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Author:张靖悦 |
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Description: 包含了当代科学计算过程中涉及的大量内容：求特殊函数值、随机数、排序、最优化、快速傅里叶变换、谱分析、小波变换、统计描述和数据建模、偏微分方程数值解、若干编码算法和任意精度计算等-Includes calculation of contemporary science involved substantial elements: seeking a special function values, random numbers, sorting, optimization, fast Fourier transform, spectral analysis, wavelet transform, statistical descriptions and data modeling, numerical solution of partial differential equations, arbitrary number of coding algorithms and calculation accuracy Platform: |
Size: 20572160 |
Author:mtx |
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Description: 摘 要
文章以空间监控系统为背景,深入研究了JPEG图像压缩标准的实现方法,并基于FPGA对其进行了实现和优化。文中给出了详细的实现方法和优化过程,测试表明达到了很好的效果。
简单介绍了有损静态图像压缩当前有两种比较流行的标准JPEG和JPEG2000。说明了用JPEG方法压缩的原因。
介绍JPEG基本原理：JPEG对灰度图像的压缩处理过程主要包括:图像分割,离散余弦变换(DCT),量化(Quantization),“Z”形排序(Zigzag Scan),差分脉冲编码调制(Differential Pulse Code Modulation,DPCM)对直流系数(DC),行程长度编码(Run-Length Encoding,RLE)对交流系数(AC),霍夫曼(Huffman)编码等。
JPEG标准的特点是离散余弦变换。
比较详细介绍压缩系统的构成和实现。实现提及步骤， JPEG压缩模块设计和编码模块实现细节。
-Abstract
Article in the space monitoring system for the background, in-depth study of the JPEG image compression standard implementation methods and carried out based on FPGA implementation and optimization. In this paper, a detailed method of implementation and optimization of the process, testing showed that to achieve good results.
Easy introduction of harmful static image compression has two kinds of comparisons that the current popular standard JPEG and JPEG2000. Illustrated by the reasons for JPEG compression method.
JPEG introduce the basic principles: JPEG compression of gray-scale image processing include: image segmentation, discrete cosine transform (DCT), quantization (Quantization), "Z"-shaped sort (Zigzag Scan), differential pulse code modulation (Differential Pulse Code Modulation, DPCM) on the DC coefficient (DC), Run Length Encoding (Run-Length Encoding, RLE) of the exchange coefficient (AC), Hoffman (Huffman) coding.
JPEG standard is characterized by discrete Platform: |
Size: 523264 |
Author:压子 |
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Description: 差分脉冲编码调制（DPCM）的matlab模块仿真，实现抽样，量化，预测，编码并解码，欢迎下载使用，我自己编的-Differential pulse code modulation (DPCM) of matlab simulation module, the realization of the sample, quantification, prediction, coding and decoding, welcome to download, I own the Platform: |
Size: 7168 |
Author:张正锋 |
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Description: Implementation of JPEG compression algorithm with JFIF header being appended.This project involves writting code for following steps : Chroma subsampling,partitioning ,level shifting,DCT,quantization,zigzag scanning(involves DC differential coding & AC huffman coding) & adding jfif header following the rules specified in itu-t.81. Platform: |
Size: 966656 |
Author:dwn |
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Description: Tool for compress and decompress for image, using differential coding prediction-Tool for compress and decompress for image, using differential coding prediction Platform: |
Size: 92160 |
Author:Lusa Elena |
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Description: 介绍了OFDM系统中的差分编码的实现，以及差分编码的意义-Differential coding implementation of OFDM system are introduced, and the concept of differential coding. Platform: |
Size: 4311040 |
Author:nicole |
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Search - differential coding