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SARDopplerEstimation
从回波中估计多普勒参数是合成孔径雷达运动补偿的关键。文中研究了多目标回波对参数估计的影响,从理论上推导了估计多普勒中心和调频率对回波的不同要求,并用两个指标举例分析了一段实测机载SAR数据,给出了实际应用中参数估计时选择回波的原则。(Doppler parameters estimation from radar echoes is a key step in SAR(Synthetic Aperture Radar}motion cornpensation.
This paper researched the efect of multiple targets echoes to estimate parameters and deducted theoretically the different
requirement for echoes in estimating doppler centroid and doppler frequency modulation rate.Th en giving a real airborne SAR echo
as example,we analyzed it with two measurements and concluded the principle about choosing echoes in practice.)
- 2009-07-07 22:31:12下载
- 积分:1
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CameraSelfCalibrationBasedOnKruppa
关于基于Kruppa方程的摄像机自标定方法的两篇论文,相对于传统的标校方法,是一种新的相机自标定技术(About Kruppa equation based camera self-calibration method of two papers, as opposed to the traditional Calibration Method is a new camera self-calibration technique)
- 2021-04-02 16:19:07下载
- 积分:1
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OPENCVIMAGEPROCESS
OPENCV图像处理模板,有界面编程的,以后运用opencv直接在里面填写代码就可以了(OPENCV image processing template, with interface programming, and after using opencv code directly on the inside can be a complete)
- 2010-05-10 16:52:17下载
- 积分:1
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refined_Lee_fliter
说明: 基于LEE滤波的极化SAR去噪 matlab实现(jiyu lee lvbo jihua SAR matlab)
- 2019-06-13 08:15:01下载
- 积分:1
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brenner
对于离焦图像进行自动对焦的图像判定,通过对一些列的图像,从离焦到对焦再到离焦进行图像分析从而获得对焦图像的图片。(For the defocus image autofocus image determination, through a series of images into focus and then from defocus defocused image analysis to obtain a focused image of the picture.)
- 2013-07-19 20:10:33下载
- 积分:1
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chepaidingwei
使用说明
使用时打开此例题目录下pic中的图片,然后依次单击按钮“转”、“1”、“2”、“3”、“4”和“5”,就可以实现精确的车牌定位。
具体步骤
1.24位真彩色->256色灰度图。
2.预处理:中值滤波。
3.二值化:用一个初始阈值T对图像A进行二值化得到二值化图像B。
初始阈值T的确定方法是:选择阈值T=Gmax-(Gmax-Gmin)/3,Gmax和Gmin分别是最高、最低灰度值。
该阈值对不同牌照有一定的适应性,能够保证背景基本被置为0,以突出牌照区域。
4.削弱背景干扰。对图像B做简单的相邻像素灰度值相减,得到新的图像G,即Gi,j=|Pi,j-Pi,j-1|i=0,1,…,439 j=0,1,…,639Gi,0=Pi,0,左边缘直接赋值,不会影响整体效果。
5.用自定义模板进行中值滤波
区域灰度基本被赋值为0。考虑到文字是由许多短竖线组成,而背景噪声有一大部分是孤立噪声,用模板(1,1,1,1,1)T对G进行中值滤波,能够得到除掉了大部分干扰的图像C。
6.牌照搜索:利用水平投影法检测车牌水平位置,利用垂直投影法检测车牌垂直位置。
7.区域裁剪,截取车牌图像。()
- 2008-06-10 10:17:08下载
- 积分:1
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cfa_laroche
将RGB格式的图片进行mosaic处理得到RawData格式的图片,然后再恢复成RGB格式彩色图片,laroche-CFA插值算法(turn an RGB picture to RawData picture,then recover the RawData picture to an RGB picture.it is called laroche-CFA.)
- 2020-09-12 13:48:01下载
- 积分:1
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ENVIMNFTrans
高光谱图像进行MNF变换,采用MAF评价图像的噪声;处理过程与ENVI软件中的完全一样。(MNF transformation of hyperspectral images, using noise MAF to evaluate the image.the process is exactly the same with ENVI software .)
- 2014-07-21 10:29:49下载
- 积分:1
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denoisingmatlab
常用的图像去噪算法,基于隐马尔可夫树模型的小波去噪 基于尺度空间和context模型相结合的自适应小波去噪 基于尺度和空间混合模型的小波图像去噪 Bayes估计阈值软门限去噪 (The denoising algorithm used in image denoising, wavelet hidden Markov tree model based on adaptive wavelet denoising combining the scale space and context model based on wavelet denoising image scale and spatial mixed model based on Bayes estimation soft threshold denoising )
- 2016-10-09 17:02:31下载
- 积分:1
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fftchazhi
基于matlab平台的fft加窗插值算法,适用于信号分析(Wft window interpolation algorithm based on matlab platform, suitable for signal analysis)
- 2020-06-24 11:20:02下载
- 积分:1