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zernik_moment
Calculation of zernike moments from binary image BW
- 2009-09-24 18:29:33下载
- 积分:1
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MATLAB_GUI_user
Matlab GUI编程中文参考手册,以及一些基本的程序介绍(Matlab GUI Programming Reference Manual, as well as some basic procedures for introduced)
- 2010-05-24 21:56:32下载
- 积分:1
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THIKAT
THIKAT algorithm descriptor
- 2012-09-06 02:33:41下载
- 积分:1
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two_controllers
a matlab program to control the parallel port
- 2012-10-02 04:42:03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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ESPRIT
DOA估计的经典算法esprit算法的求根算法,在matlab中能够完全仿真。(DOA estimate of the classical esprit of the algorithm is extract roots algorithm, in matlab simulation can completely.)
- 2012-04-09 13:20:36下载
- 积分:1
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boost_2
通过Matlab/simulink对boost电路进行编程,实现了输出电压的PI控制。对输出电压可以任意调节(By Matlab/simulink for boost circuit programming, the PI control of the output voltage. The output voltage can be adjusted)
- 2014-05-18 10:09:46下载
- 积分:1
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Image-Kmeans
use the k-means algorithm to cluster pixels into a number of clusters representing the texture regions.
- 2009-09-04 09:45:54下载
- 积分:1
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LS
说明: 这个源代码 实现了协作通信与OFDM技术的结合 信道估计采用LS一阶线性估计算法(This source code implements the communication and collaboration technology, combined with OFDM channel estimation using LS estimation method for first order linear)
- 2011-02-21 14:38:02下载
- 积分:1
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snr
阵列自适应波束形成,利用SNR准则进行自适应波束形成(The array of adaptive beamforming using SNR criterion)
- 2013-05-17 13:32:59下载
- 积分:1