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prime
一是利用计算机对正整数进行素因子分解认识素数，通过运用筛法与试除法寻找一定范围内的素数，体会到筛法比试除法有效但无法找出所有素数；二是通过若干特殊形式的素数的研究，寻找素数生成公式，发现一些结论；三是借助于非线性拟合技术，观察素数分布规律，利用其研究有关数论问题。(The first computer was used to prime factor decomposition of positive integers understanding of prime numbers, through the use of screening method and trial division to find prime numbers within a certain range, the division experienced a test of an effective screening method but can not identify all the prime numbers second is through a number of special form of prime numbers research, looking for prime number generation formula, found that some of the conclusions third, by means of non-linear fitting technique to observe the distribution of prime numbers, using their research on number theory problems.)
- 2009-12-29 01:04:50下载
- 积分：1
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segment_chainCode1
该程序完成的是通过使用所提供的链码（一种方向码）来画出链码所表示的轮廓。所画轮廓在原图上是黑色的线。(the code is used for draw the outline of the region of interest which is show by the chaincode)
- 2010-02-26 19:09:12下载
- 积分：1
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gu_Morlet
自编小波变换程序，小波基Morlet，matlab环境。(Self wavelet transform process, wavelet Morlet, matlab environment.)
- 2011-02-10 02:52:45下载
- 积分：1
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intltool-0.40.1.tar
l这个工具是一个高版本的inux tools(this is a high linux tools)
- 2013-11-22 17:23:37下载
- 积分：1
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opticalflow
基于horn-schunck算法的matlab源代码；其中输入一个视频可以用这一算法计算出u和v；即在x和y方向上的速率； (Algorithm based on horn-schunck matlab source code enter a video in which the algorithm can be used to calculate the u and v that x and y directions in the rate )
- 2011-01-03 16:49:04下载
- 积分：1
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DMC_contol
说明： DMC控制器设计源程序，通过matlab，有较佳的控制效果(DMC controller design source code, through matlab, a better control effect)
- 2009-08-29 16:38:50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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stft4
对于持续时间为500s的两个LFM信号，其初始频率分别为0.1Hz、0.3Hz，中止频率分别为0.3Hz、0.1Hz，在不含噪声和含有噪声（ ）的情况下，仿真(for the duration of the two 500s LFM, the initial frequency of 0.1Hz. 0.3Hz, suspension frequencies of 0.3Hz, 0.1Hz. In noise-free and noisy () cases, the simulation)
- 2007-06-08 22:25:31下载
- 积分：1
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reconstruct
Matlab程序,通过二维图像重建三维模型的例子,简单实用(Matlab program, through the two-dimensional image reconstruction of three-dimensional model example of simple and practical)
- 2009-05-14 16:22:01下载
- 积分：1
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Falpos
falsa posicion by davo
- 2010-11-30 05:59:30下载
- 积分：1
