ROS message filter

1. Reason In robot applications, the sensing frequency of sensors can rarely be consistent, For example, the odometer data can reach 50Hz, the image frequency can reach 30Hz, and the lidar data acquisition can reach 10Hz Then the time must be out of synchronization, and some fusion algorithms need to synchronize the sensor data before f ...

Posted on Sat, 04 Dec 2021 22:40:22 -0500 by provision

Jetson full platform installation ROS2

Platforms supported by ROS2 Linux (Ubuntu Focal(20.04)) macOS Windows ROS2 is really cross platform, and ROS1 only supports Linux. A great God said, don't do ROS1, go directly to ROS2~~ Install ROS2 (foxy) to NVIDIA Jetson development kit Download my script: https://gitee.com/lhamojam/installROS2Or original address: https://github.com/jetso ...

Posted on Thu, 02 Dec 2021 21:57:17 -0500 by oboedrew

Mathematical derivation, solution and user-defined implementation of P3P camera attitude estimation

Mathematical derivation, solution and user-defined implementation of P3P camera attitude estimation The official account of WeChat: Xueba in kindergarten catalogue preface PnP problem (Perspective N Points) refers to the problem of finding the camera attitude when the spatial coordinates of 3D points and their projection on the cam ...

Posted on Tue, 30 Nov 2021 09:25:41 -0500 by Cazrin

[digital signal processing] synchronous compression and transformation of digital signals based on MATLAB [including Matlab source code 1534]

1, Get code method Get code method 1: The complete code has been uploaded to my resources: [digital signal processing] synchronous compression and transformation of digital signals based on MATLAB [including Matlab source code 1534] Get code method 2: By subscribing to the payment column of zijishenguang blog, private bloggers can obtain this ...

Posted on Sun, 28 Nov 2021 03:23:38 -0500 by GameYin

[digital signal processing] synchronous compression and transformation of digital signals based on MATLAB [including Matlab source code 1535]

1, Get code method Get code method 1: The complete code has been uploaded to my resources: [digital signal processing] synchronous compression and transformation of digital signals based on MATLAB [including Matlab source code 1535] Get code method 2: By subscribing to the payment column of zijishenguang blog, private bloggers can obtain this ...

Posted on Sun, 28 Nov 2021 03:04:39 -0500 by kcarroll

Load mapbox basemap (TransBigData) in matplotlib

Introduction to TransBigData package: Map basemap - TransBigData 0.1.28 documenthttps://transbigdata.readthedocs.io/zh_CN/latest/plot_map.html Map basemap    The TransBigData package provides the function of drawing map basemap on matplotlib. The basemap is provided by mapbox and the coordinate system is WGS84. If you want to use this fu ...

Posted on Fri, 26 Nov 2021 13:57:17 -0500 by smokinjoe

ROS learning - write a simple Publisher and Subscriber

Write a Publisher node "Node" is a term for executable files in ROS, which is connected to the network of ROS. Here, we will create a Publisher node (talker) to continuously broadcast the message. First, switch to begin_ The location of the tutorials package. roscd beginner_tutorials Create an src folder to store the source code. ...

Posted on Tue, 16 Nov 2021 10:01:51 -0500 by surion

Reproduce spconv v1.0 (commit 8da6f96) pit stepping record in clocks

I recently read a paper on 2D and 3D post fusion based on KITTI, clocks: camera lidar object candidates fusion for 3D object detection. The author opened his own source on Github code So I wanted to reproduce the results. As a result, I spent a few days building the environment and encountered many bug s. I just wanted to record it to avoid det ...

Posted on Fri, 12 Nov 2021 12:25:28 -0500 by baselinej

Ubuntu 18.04 running vins mono with D435i

Operating environment Linux: Ubuntu18.04ros: Melodic 1. Create a new ROS project directory folder mkdir catkin_ws cd catkin_ws mkdir src catkin_make 2. In the src folder, download and install the source code function package related to vins mono and compile it https://github.com/intel-ros/realsense.git : SDK 2.0 development kit ...

Posted on Wed, 10 Nov 2021 06:59:23 -0500 by msing

ROS noetic installation and problem solving and testing

0. Main reference: Official installation Official Chinese installation Install ROS Noetic version in Ubuntu 20.04 Installing ROS robot operating system Noetic on Ubuntu 20.04 Gazebo problem repair of virtual machine running 1. Configure system software source Open "software and update" and enter the "Ubuntu software" ...

Posted on Sat, 06 Nov 2021 02:28:48 -0400 by sanahoria