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EDLines 快速直线检测算子
EDLines是一种快速直线检测算子,2012年在ICCV上提出,也是目前处理直线检测最快的算法之一,该算法包含三个步骤:(1)边缘提取:利用Edge Drawing (ED)算法[28,29]从灰度图像中提取边缘片段;(2)线段检测:利用最小二乘法提取直线段;(3)线段确认:遵循Helmholtz定律,从已提取的直线段中摒弃虚假线段。EDLines算法的优越性得益于Edge Drawing (ED)算法能够从灰度图像中准确、快速、稳定地提取出光滑、完整的边缘片段。Edge Drawing (ED)算法包含以下步骤:
(1)采用size=5*5,σ=1的高斯核对灰度图像进行平滑滤波,去除噪声;
(2)采用一种常用的梯度算子,如Prewitt、Sobel或Scharr等计算平滑后图像中每个像素点的梯度幅度和梯度方向;
(3)将梯度图中邻域内幅度最大的像素点标记为锚点,这些锚点成为图像边缘点(edge elements)的概率很大;
(4)将相邻的锚点连接成边缘线。从一个锚点起始,ED利用相邻像素的梯度幅度和方向在梯度为最大值的锚点之间游走。
(Edge Drawing (ED) is our recently-proposed, novel, fast edge detection algorithm. What makes ED stand out
the existing edge detectors, e.g., Canny, is the following: While the other edge detectors give out a binary
edge image as output, where the etected edge pixels are usually independent, discontinuous entities ED produces a
set of edge segments, which are clean, contiguous, i.e., connected, chains of edge pixels. Thus, while the output of
the other edge detectors requires urther processing to generate potential object boundaries, which may not even be
possible or result in inaccuracies ED not only produces perfectly connected object boundaries by default, but it also achieves this in blazing speed compared to other edge detector.)
- 2021-03-22 16:29:16下载
- 积分:1
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Kriging
协同克里金插值算法,可用于各种地球物理手段的成图,地形图,高程图,电阻率分布等(Collaborative Kriging interpolation algorithm can be used for a variety of geophysical instruments to map, topographic maps, elevation maps, resistivity distribution.)
- 2013-12-18 09:06:28下载
- 积分:1
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CxxCavaConverter03
convert C++ to C# by program demo
- 2013-07-28 03:59:11下载
- 积分:1
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NFTL--code
镁光公司NANDFlash的NFTL代码,包含坏块管理、读写平衡以及ECC校验等部分。(Micron company NFTL NANDFlash code, including read and write bad block management, balance and ECC check and other parts.Micron company NFTL NANDFlash code, including read and write bad block management, balance and ECC check and other parts.)
- 2021-02-04 12:59:58下载
- 积分:1
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suijishuiwenxue
关于随机水文学的使用教材,便于读者们的自学(About the use of stochastic hydrology textbook, easy to readers who self-)
- 2013-09-22 10:08:32下载
- 积分:1
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99multimedia
学习多媒体的很好的学习资料,中科院研究生院使用。(Good study of multi-media learning materials, the use of Graduate School of Chinese Academy of Sciences.)
- 2009-04-19 18:09:59下载
- 积分:1
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Newton
C++编写的电力系统潮流计算程序,采用牛顿法,并考虑到节电优化编号,5,14,57,300节点验证正确(Power flow calculation program, C++ written using Newton' s method, taking into account the number to the power-saving optimization, 5,14,57,300 node authentication)
- 2021-04-29 10:28:43下载
- 积分:1
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FenblBoh
一个用VC实现分辨调整和网络拨号切换的程序(a resolution with VC adjustment dial-up and network switching procedures)
- 2007-05-30 09:40:54下载
- 积分:1
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C语言趣味程序百例精解
绘制余弦曲线、生活中的数学问题、整数趣题、素数的家庭(Draw, mathematical problems in the life, family, prime integer puzzles)
- 2018-03-26 20:48:54下载
- 积分:1
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sadf
VC++与MATLAB的混合编程
:This paper is origined from the API(Application Programme Interface)between Matlab6p5 and
Visual C++6.0.and has mainly discussed on the idea about how to make a mixed programme with language
C++ and Madab,what’s inore,has illustrated the scheme and difficulties to enhance the speed and efficien—
cy of the simulation software and code executing.Consequently,it provides the students and engineers with an
effective reference. (:This paper is origined from the API(Application Programme Interface)between Matlab6p5 and
Visual C++6.0.and has mainly discussed on the idea about how to make a mixed programme with language
C++ and Madab,what’s inore,has illustrated the scheme and difficulties to enhance the speed and efficien—
cy of the simulation software and code executing.Consequently,it provides the students and engineers with an
effective reference. )
- 2010-12-25 16:57:26下载
- 积分:1