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singularitydetection
提出一种两阶段的奇异点检测方法。将指纹图像分块,求出各块的方向构成块方向图,并在块方向图的基础上利用邻域方向的分
布分析结合改进的Poincare Index方法来确定奇异点所在的候选区域,对候选区域中的像素再通过计算局部方向变化率来确定奇异点的精
确位置。将此方法用于对FVC2004 DB1_A指纹数据库的图像,实验结果表明这种方法对指纹图像中的噪声有很好的鲁棒性,并且计算简
单快速,易于实现。
(A two-phase singularity detection. Fingerprint image block, calculate the direction of each block constitute a block pattern, and pattern in the block based on the use of the distribution of the direction of the neighborhood together with the improved Poincare Index method to determine the singular point where the candidate regions of the candidate region of pixels re-calculated to determine the rate of change of local direction of the precise location of singular points. This method is used to FVC2004 DB1_A fingerprint database of images, experiments show that this method of noise on the fingerprint image has good robustness and computing simple and fast, easy to implement.)
- 2010-05-18 10:35:11下载
- 积分:1
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SparseMV
Minimum variance and array signal processing
- 2013-02-11 00:44:14下载
- 积分:1
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radar-system
对matlab中的雷达仿真进行了初步分析,给出了部分功能的程序代码(radar simulation
)
- 2012-11-27 14:01:26下载
- 积分:1
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ceshi
该程序是灰度图像的坐标变换,用于二维图像平移,放大。(The program is a grayscale image of the coordinate transformation for two-dimensional image translation, zoom.)
- 2009-12-15 13:23:49下载
- 积分:1
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PCM
说明: 利用Matlab仿真脉冲编码调制(PCM)及A律、μ律PCM对声音进行压缩编解码过程。
脉冲编码调制(PCM,Pulse Code Modulation)是一种将模拟语音信号转换成数字信号的编码方式。波形编码器的作用是对采样后的信号样本进行量化和编码。从数学上来看,量化过程就是把一个连续幅度值的无限数集合映射成一个离散幅度值的有限数集合,编码就是用一组二进制数来表示这些映射后的有限数。国际标准化的PCM采用折叠二进制码,符合长途电话质量。根据量化方法的不同,PCM可分为均匀量化PCM和对数PCM两大类,对数PCM中,2Aμ律和律编码都已被定为国际标准。(Matlab simulation using pulse code modulation (PCM) and the A law, μ law PCM codec for voice compression process.
Pulse Code Modulation (PCM, Pulse Code Modulation) is an analog voice signal into digital signal encoding. The role of the encoder waveform is sampled signal sample quantization and coding. From the mathematical point of view, the process is to quantify the magnitude of the value of a continuous set of infinite number of maps into a finite number of discrete set of amplitude values , encoding is to use a set of binary digits, said after a limited number of these maps. By folding the International Standardization of PCM binary code, in line with long-distance telephone quality. According to the different quantitative methods, PCM can be divided into uniform quantization PCM PCM and the number of two categories, on the number of PCM in, 2Aμ law and legal codes have been designated as international standards.)
- 2011-04-14 12:06:33下载
- 积分:1
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EKF
一篇很好的将滑模控制与扩展卡尔曼控制结合的控制策略文章和源程序(A very good file with sliding mode control extended the Calman control )
- 2015-01-09 19:44:46下载
- 积分:1
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Digital-baseband-signal
数字信号的基带传输 PAM的功率谱密度 数字基带的接收 匹配滤波器 升余弦滚降系统 基带信号眼图(Digital baseband digital signal baseband transmission power spectral density of the PAM receiver matched filter raised cosine the system baseband signal eye diagram)
- 2013-05-17 10:55:16下载
- 积分:1
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DIP
對於影像處理的分析教學,以及解述數位訊號處理的應用(Analysis of teaching, as well as image processing paraphrase digital signal processing applications)
- 2013-01-04 11:26:37下载
- 积分:1
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09-math-cucum
数学建模仿真,09年眼科病床仿真源程序,内有时间安排说明(math modeling simulink)
- 2014-09-13 18:10:56下载
- 积分:1
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3GPP-LTE--protocal(36211-870)
3GPP LTE官方协议(36211-870),中文版本,非常不错的资料(3GPP LTE Official Protocol (36211-870), Chinese version, very good information)
- 2014-11-17 18:01:37下载
- 积分:1