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bp
说明: 在matlab的条件下,开发BP网络的优化方法,对边坡的安全系数进行分析(In matlab under the conditions of the development of BP network optimization method, the slope factor of safety analysis)
- 2007-07-24 17:34:37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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winsvm
一些MATLAB SVM的分类器程序winsvm,希望可以对大家有用(very good)
- 2011-04-20 20:10:12下载
- 积分:1
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liuyong_0910465_05
模拟一个城市的气温在15年内的变化情况,以及统计气温的各种变化走势和在一定时间段内气温的各种统计量。(Simulation of a city in 15 years the temperature changes, as well as statistical temperature changes trend and within a certain period of time the temperature of various statistics.)
- 2012-05-06 13:03:30下载
- 积分:1
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triangle-spread-the-spectrum
三角波及其频谱三角波及其频谱三角波及其频谱(The triangle spread the spectrum)
- 2012-05-11 10:18:12下载
- 积分:1
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tidufa-rbf
ti duffing neural network
- 2012-10-02 03:03:45下载
- 积分:1
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Spectral-Clustering
matlab-Spectral Clustering
- 2015-01-07 11:37:25下载
- 积分:1
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vocabulary
matlab 实现的词汇量统计的云模型工具。统计效果好(matlab vocabulary to achieve statistical cloud model tools. Statistical effect)
- 2011-01-05 14:39:41下载
- 积分:1
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bimodal-noise
在复杂的电子系统中,影响信号接收的很多噪声为非高斯噪声,这些噪声是没有预料到的,以致破坏了接收机的功能,研究表明:这些噪声可以看成双模噪声,双模噪声从整体上讲属于非高斯噪声。(In complex electronic systems, many of the signal received by a non-Gaussian noise, the noise is not anticipated, resulting in damage to the receiver function, research shows that: the noise can be regarded as dual-mode noise, dual-mode noise As a whole is non-Gaussian noise.)
- 2011-04-30 17:21:27下载
- 积分:1
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MATLAB
一本讲述matlab应用的经典书籍,书中具体详细的描述了matlab的应用。(A classic book about the matlab application, specific and detailed description of the book matlab applications.)
- 2011-07-22 11:29:45下载
- 积分:1