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全部文章（共226篇）

[cv]hough transform ----circle

hough transform for circles if the radius is not fixed, hough of circle in image will be a 3D space. but if the gradient of a circle is given,...

2020-07-13

0 536

[cv]generalized hough transform

general hough specific hough transform is usually used in images with a specific shape (line, circle). example algorithm

2020-07-13

0 562

[robot]Quaternions and Rigid Transformations

四元数定义单位四元数这一性质十分有用。由于多次的旋转矩阵间相乘会导致误差累积，相乘次数越多误差越大。如果利用单位四元数表示旋转矩阵，相乘后得到另一个单位四元数，这时对这个四元数进行renormalize就可以提高精度。群共轭先进性这一表示形式在...

2020-07-13

0 553

[robot] review rotation

fundamental rotation exercise rotation around a fixed frame rotation around an intermediate frame representation of rotations ba...

2020-07-13

0 553

[robot]Forward-Kinematics

Forward Kinematics degree of freedom universal join 万向节 grubler’s criterion F=λ(n−j−1)+∑i=1jfi where, F is number of DOF, n is number of li...

2020-07-13

0 523

[cv] convolution in frequency domain

convolution in frequency domain convolution in spatial domain == multiplication in frequency domain. FFT Fast Fourier Transform smoothing and...

2020-07-13

0 439

[robot] review forward kinematics

DH parameters find common normal of Zi and Zi+1 . place new X axis Xi+1 along thi...

2020-07-13

0 624

visual studio 2017 配置 opencv 3.2 开发环境

1. 安装opencv 3.2 链接地址：https://sourceforge.net/projects/opencvlibrary/files/opencv-win/3.2.0/opencv-3.2.0-vc14.exe/download 下载后双击进行解压。解压后，将安装路径加入环境变量。...

2020-07-13

0 597

win7 配置 matlab Mex 环境

1.首先安装.Net framework 4.0 下载链接为 https://www.microsoft.com/en-us/download/confirmation.aspx?id=17851 2.安装windows SDK 下载链接为： http://download.csdn.ne...

2020-07-13

0 568

tensorflow 中对数组元素的操作

上个月没咋写文章。这个月开始，多进行进行总结分享。 tensorflow中对tensor对象进行像numpy数组一样便捷的操作是不可能的，至少对1.2以及之前的版本而言。从issue上看到，有不少人希望tensorflow能及早实现这些操作，但近期来看是不太可能了。但是，这样...

2020-07-13

0 421