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FDTD_Matlab
FDTD(时域有限差分法)算法的Matlab源程序(FDTD (FDTD) algorithm Matlab source code)
- 2008-01-03 16:26:26下载
- 积分:1
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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
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mri
arduino with matlab code.this code describe how to interface arduino with matlab
- 2013-04-05 20:42:03下载
- 积分:1
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leach_matlab
LEACH protocol code developed using Matlab
- 2010-11-19 16:10:15下载
- 积分:1
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MATLAB-utility-100-cases
数学建模案例MATLAB实用程序百例,其中包括了matlab的入门教学,与一些经典的例子(包括源代码)。(Mathematical modeling case MATLAB utility 100 cases, including teaching matlab entry, with some classic examples (including source code).)
- 2013-08-14 22:26:51下载
- 积分:1
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coherence_analysis
相干性分析m文件,适合于车辆试验频域分析(Coherence analysis m file, suitable for vehicle test frequency domain analysis)
- 2015-08-13 23:21:03下载
- 积分:1
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mflood-source
自己做的一个ns-2下的flood仿真程序演示结果(a flood protol for wsn in ns2 simulator.)
- 2010-10-19 12:24:36下载
- 积分:1
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energy_detection_rayleigh_digham_paper
This code plots the receiver operating characteristics (ROC) curve for Rayleigh channel. The formulas for the probability of detection and the probability of false alarm are taken the following paper:
Digham, F.F. Alouini, M.-S. Simon, Marvin K., On the Energy Detection of Unknown Signals Over Fading Channels, Communications, IEEE Transactions on , vol.55, no.1, pp.21,24, Jan. 2007.
- 2015-03-03 06:16:28下载
- 积分:1
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bianmiantux
包括表面图形等matlab函数,可以供大家使用(Including graphics such as surface matlab function, you can use for everyone)
- 2009-03-11 15:01:22下载
- 积分:1
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Three-genetic-algorithm-matlab
三个简单地使用matlab实现的遗传算法的程序,为初学者提供一个入门知识(Three simple genetic algorithm matlab implementation of the program, to provide the knowledge of an entry for beginners)
- 2012-06-04 23:21:26下载
- 积分:1