Robot hand-eye calibration Ax=xB (eye to hand and eye in hand) and plane nine-point calibration

1. Background Calibration is an everlasting pain for robot developers.Although the method was used decades ago, everyone who wants to use the camera has to go through a painful pit, without easily getting the good bag. In the application of robot vision, hand-eye calibration is a very basic and critic ...

Added by Joeker on Fri, 12 Jun 2020 05:02:44 +0300

[complete version] usage record of YOLOv3

Xiaobai wrote systematic articles for the first time, but his technique was poor, mainly for the convenience of his later search. I hope all the gods don't like light spray~~ There are 7 complete versions of the main documents at the end of the article. Please refer to them if you like~ 0 organization ...

Added by kristianblom on Thu, 11 Jun 2020 08:32:33 +0300

Qt Picture Correction (2)

Qt Picture Correction (2) Qt Picture Correction 2 Sketch PDF to Picture Code Opencv Picture Correction Picture to PDF summary Continued Sketch In the previous section, the principle of picture correction is briefly described.This explains the code section. PDF to Picture Code PDF to Picture Code <----- Download PDF to ...

Added by healthnut on Sun, 24 May 2020 19:08:56 +0300

C++ Implementation of DotCode Scavenging

Dynamsoft Barcode SDK v7.4 supports the DotCode type.I wrote a simple example in C++. DotCode Desktop Scavenger Two types of interfaces are provided in Dynamsoft SDK: One is a direct sweep interface, such as decodeFile, decodeBuffer. One is the interface StartFrameDecoding(), StopFrameDecoding(), and AppendFrame(), designed for video streaming ...

Added by lisa3711 on Tue, 12 May 2020 10:01:48 +0300

opencv3/C + + video reading and writing

Video reading Video reading mainly uses the methods under VideoCapture class to open the video and obtain the frames in the video. The specific examples are as follows: #include<iostream> #include<opencv2/opencv.hpp> using namespace cv; int main() { VideoCapture capture; Mat frame; frame= capture.open("E:/image/a1.av ...

Added by jpowermacg4 on Mon, 04 May 2020 02:01:04 +0300

The study of Python -- the construction of VGG

VGG vgg is a classical convolutional neural network, which is mainly composed of convolution layer, normalization, activation function, pooling layer and full connection layer. Among them, the convolution layer > normalization > activation function is the main body, and the pooling layer mainly p ...

Added by robs99 on Wed, 04 Mar 2020 16:03:56 +0200

Using live555 video monitoring

Using live555 for video monitoring Article directory Using live555 for video monitoring 1 code directory 2 code structure 3 main source code 4 problems encountered link 1 code directory . ├── main.cpp ├── Makefile ├── videoMonitor.cpp ├── videoMonitor.h ├── x264Encoder.cpp └── x264Encoder.h ...

Added by tfburges on Fri, 28 Feb 2020 05:36:12 +0200

GMM (Gaussian mixture model) method for opencv image segmentation

GMM introduction Unlike other machine learning models, EM algorithm is an unsupervised learning algorithm, whose input data does not need to be labeled in advance. On the contrary, the algorithm can calculate the maximum likelihood estimation of Gaussian mixture parameters from a given set of samples. ...

Added by garek007 on Wed, 05 Feb 2020 14:47:16 +0200

How to distinguish opencv3 from opencv4 in your project without conflict

Next to the previous blog, continue to analyze: Opencv3 and opencv4 are installed on the computer at the same time, so the problem is how to write the CmakeLists.txt file when you are working on a project, when you are using opencv3, and when you are using opencv4, how to write the CmakeLists.txt file, ...

Added by jawapro on Mon, 03 Feb 2020 04:23:13 +0200

Basis of wavelet transform

Basis of wavelet transform Wavelet basis The principle understanding and why wavelet should be used can be referred to as follows: https://zhuanlan.zhihu.com/p/22450818 , some of which are helpful for understanding wavelet transform. The basic contents are as follows: 1. Fourier transform (FT) can better analyze the frequenc ...

Added by Iasonic on Wed, 01 Jan 2020 06:55:37 +0200