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jiyuzuixiaoerchengfagaijindesuijituoyuanjiance
为了提高数字图像中椭圆检测的效率和准确性,提出了一个基于最小二乘法的改进的随机椭圆检测算法.
该算法随机选取图像中的3 个边缘点,在以这3 个点为中心的窗口内,从边缘点中拟合出可能椭圆,并通过随机选
取的第4 个边缘点来确认可能椭圆. 利用直接最小二乘法椭圆拟合的特性,引入可能椭圆边缘点收集和椭圆重新
拟合的迭代过程来提取最终的椭圆参数. 通过对含有不同噪声的仿真图片和包括残缺椭圆的实际图片的实验表
明,新算法的改进是有效的. 与原算法相比,新算法降低了对参数的依赖性,提高了检测的速度、稳定性和准确性,
同时保留了原算法的抗噪声能力.(: An imp roved randomized ellip se detection algorit hm based on least square approach was proposed
to enhance t he efficiency and accuracy of ellip se detection in digital images. This algorit hm randomly se2
lect s three edge point s in t he image , and t hen uses least square approach to fit all t he edge point s in three
windows , which are defined by t he t hree edge point s. The forth edge point is randomly selected to judge
whet her a possible ellip se exist s in t he image. Utilizing the characteristic of direct least square fit ting of
ellip se , an iteration process of edge point collecting and ellip se refit ting of possible ellip se was int roduced
to ext ract t he final ellip se’s parameters. Artificial images wit h different level s of noise and nature images
containing incomplete ellip ses were employed to test t his algorithm. Experimental result s show that t he
improvement s are notable. Compared with the original algorit hm , t he propo sed algorit hm reduces)
- 2020-11-01 11:19:55下载
- 积分:1
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读TIFF
遥感影像可以用TIFF文件表示,为了读取遥感影像,可以使用python读取TIFF文件并进行重排(Remote sensing images can be represented by TIFF files. In order to read remote sensing images, TIFF files can be read and reshapeed by using Python)
- 2017-11-02 13:59:06下载
- 积分:1
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Img_compress
用奇异值分解的方法实现图像压缩,有助于初学者了解奇异值分解的应用(Using singular value decomposition method to achieve image compression will help beginners understand the application of singular value decomposition)
- 2007-07-12 19:40:42下载
- 积分:1
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txcl1
图像频域滤波,实现图像频域滤波,加深对频域图像增强的理解(Image frequency domain filtering, image frequency domain filtering, to deepen understanding of the frequency-domain image enhancement)
- 2013-04-09 13:19:40下载
- 积分:1
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帧间差分法
说明: 带一个视频。路径要选择好才能运行,选择解压的此文件的路径。对运动视频的检测 返回一对坐标和大小,可识别运动物体。(The detection of moving video returns a pair of coordinates and sizes, which can identify moving objects.)
- 2020-04-27 20:31:48下载
- 积分:1
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Compression
this is a program for image compression
- 2012-04-09 23:06:41下载
- 积分:1
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Subpixel-
亚像素位移和变形梯度测量采用数字图像/散斑相关(Subpixel displacement and deformation gradient measurement using digital image/speckle correlation( DISC
))
- 2020-11-27 16:19:32下载
- 积分:1
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my_dct
用matlab做的基于DCT变换的图像压缩源码,先把图像分成8X8 的子块,然后做DCT变换,再量化,在恢复重建图像(Using matlab to do DCT-based transform image compression source code, first image is divided into 8x8 sub-block, and then make DCT transform, and then quantified, at the resumption of the reconstructed image)
- 2020-08-09 12:08:29下载
- 积分:1
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LucasKanade
LK光流算法 源程序(一层不带有金字塔的算法)(LK source optical flow algorithm (a layer of non-pyramid algorithm))
- 2009-07-06 15:19:33下载
- 积分:1
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WaveletEdgeDetect
这是一个用matlab开发的程序,用小波理论来完成图像边缘检测的,程序可用。(This is a procedure developed by matlab, using wavelet theory to complete the image edge detection, the program can be used.)
- 2008-06-04 12:58:55下载
- 积分:1