Notes on robotics, vision, and systems.
g2o (General Graph Optimization) is a graph optimization library that combines nonlinear optimization with graph theory. We can use g2o to solve any least-squares problem that can be represented as graph optimization.
Ceres is a library for solving least-squares problems. We only need to define the problem to be optimized and let it perform the computation. Usage: 1. Define each parameter block. A parameter block is simply a vector, but it can also have a special structure such as a quaternion or Lie algebra……
I was using an STM32F103C8T6 minimum system board. After debugging the STM32 program on Windows and successfully establishing serial communication, the serial connection stopped responding after I restarted the computer.
The purpose of camera calibration is to eliminate camera distortion. For details on how distortion occurs, see the previous article. The process of calibrating a USB camera in ROS can be broadly divided into several steps. ① Install the usb_camera driver package; ② run usb_cam to capture images from the USB camera; ③ download and print a checkerboard, then calibrate the camera.
This tutorial explains how to download and install the Keil5 51 edition. Keil5 is a very user-friendly and powerful C language software development system. Keil5 provides a clear and intuitive interface, is very easy and convenient to use, and includes compiler, compiler, installer package, and debugging and tracing features.
This tutorial explains how to download and install the MDK edition of Keil5. Keil5 is a very user-friendly and powerful C software development system. Keil5 provides a clear, intuitive interface, is very easy and convenient to use, and includes a compiler, compiler, installation package, and debugging and tracing features.
Use xacro description files to create a differential-drive robot model, simulate the model in Gazebo, then use the libgazebo_ros_diff_drive.so plugin to control the robot's motion, and finally implement keyboard control of the robot in the Gazebo environment.
LabVIEW 2020 Chinese edition installation tutorial with Aliyun Drive links and detailed installation steps. For learning reference only—do not use for commercial purposes!
When using the OpenCV package, you may encounter ImportError: No module named cv2. I was certain that I had already installed OpenCV. After looking into it, I found that OpenCV had been installed for a different Python version than the system default, which caused the module not to be found.
Why create a three-dimensional robot model? Robot simulation tools can help us identify critical errors in a design. Model simulation means that we create a robot model, so it does not necessarily look exactly like the real robot. However, because it is a simulation, the model must include all the characteristics of the real hardware.
