-
JPEGimageCompressiontechniquesimplementationandopt
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 )
- 2009-03-29 08:39:04下载
- 积分：1
-
MATLAB6.xfuhaoyunsuan
matlab符号运算的电子书籍。对想学习matlab的同学比较有用(the matlab symbolic computation electronic books. Useful to the students want to learn matlab)
- 2013-03-08 23:20:19下载
- 积分：1
-
EXP
通信系统中调制解调串并转换，符号映射，载波调制，相干解调等模块的matlab仿真文件，适合通信工程中的调制技术的仿真工作(Communication system and installed for the modem string, symbol mapping, modulation, coherent demodulation module matlab simulation files, suitable for simulation of communication engineering work modulation techniques)
- 2014-02-23 22:31:26下载
- 积分：1
-
MATLABqiushuxue
介绍了MATLAB求解应用数学问题的相关知识，很详细，是英文的。(Describes the application of MATLAB to solve mathematical problems related to knowledge, very detailed, is English.)
- 2011-10-21 11:11:27下载
- 积分：1
-
grad
metodos numericos encontrar el minimo
- 2013-04-06 13:48:13下载
- 积分：1
-
ofdm
CDMA Modulation algorithm implemantation
- 2015-04-22 01:22:25下载
- 积分：1
-
cl_bicoherence
统计信号处理中，计算双谱的仿真程序，已通过测试。(Bispectrum calculation procedures.)
- 2010-09-17 18:49:22下载
- 积分：1
-
matlab-nss--code
matlab NSS利率期限模型源代码 用的是非线性最小二乘法 里面有两种实现方法(matlab NSS Term model source code using a nonlinear least squares method, there are two ways to achieve)
- 2013-07-19 18:31:50下载
- 积分：1
-
quantization_error_Matlab_file
Simulink Model that quantization error with input and output signal and output spectrum
- 2013-04-02 13:06:03下载
- 积分：1
-
Plan_Recognise
仪表表盘识别程序，基于matlab编写。可识别数字表盘和指针表盘。对于清晰可辨的图片有较高的可靠性(Instrument dials recognition program, based on matlab prepared. Identifies digital dial and pointer dial. For legible image with high reliability)
- 2021-04-12 16:18:57下载
- 积分：1
