-
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
-
1000-8608(2013)05-0742-07
一种基于复合混沌映射的单向Hash函数构造(One-way Hash function construction based on composite chaotic map)
- 2014-02-01 19:51:24下载
- 积分：1
-
matlab-vehiclenumberplate--recognition
能测定蓝底白字的车牌，图片格式要设定为640*480的jpg。(It can recognize the vehicle number plate with white number on a blue background.)
- 2010-11-24 22:42:26下载
- 积分：1
-
Mathemagic_tricks
Good for improving math skills and increasing your perception of numbers.
- 2011-01-05 12:23:18下载
- 积分：1
-
MIMO_OFDMsystem
mimo－ofdm系统仿真，matlab源程序(mimo- ofdm system simulation, Matlab source)
- 2007-01-24 21:26:43下载
- 积分：1
-
MATLABshiyan
MATLAB及应用实验指导书
适合汽车专业本科(MATLAB and application of experimental instructions for auto majors)
- 2011-10-01 19:05:56下载
- 积分：1
-
case_study_2
经典mppt与风速湍流作为搜索信号的mppt
非常经典是 风力发电技术优化的必须内容(mppt wind speed )
- 2011-11-06 21:58:42下载
- 积分：1
-
jj
说明： 量子力学相关内容的matlab模拟演示，包括内容很全，做了方便的用户界面(Quantum mechanics-related content of the matlab simulation demonstration)
- 2011-11-17 09:36:59下载
- 积分：1
-
SegTool
lazy snapping的算法，是image matting的一种方法(lazy snapping algorithm is a method of image matting)
- 2008-01-31 22:03:57下载
- 积分：1
-
Allkalmanfilter
Many application of Kalman filter
- 2009-10-22 16:22:24下载
- 积分：1
