11-[LVI-SAM]visual_ feature_ img_ Analysis of callback

2021SC@SDUSC visual_ feature_ img_ Analysis of callback In the previous blog, we analyzed one of the callback functions lidar in LVI-SAM_ callback. Through the last blog, we know lidar_callback subscribes to the lidar message and obtains the read-up information through processing, and then puts the dot graph with depth information into the s ...

Posted by zeddeh on Sun, 28 Nov 2021 10:14:35 -0800

[comb 1 of ORB-SLAM2 key knowledge points] the relationship among key frames, common views, extension trees and essential diagrams

preface I don't know what to write in this preface. Let's encourage each other. 1, KeyFrame In short: a key frame is a representative of several ordinary frames. 1. Function and significance Reduce the information redundancy in local adjacent key frames;In SLAM scheme, the depth of ordinary frame will be projected onto the key fr ...

Posted by slyte33 on Tue, 23 Nov 2021 16:27:34 -0800

cmake uses tutorial cpack to generate the installation package, with super full tutorial documents

This series of articles is translated from the official cmake tutorial: [cmake tutorial]( ). Sample program address: [github.com/rangaofei/t...]( ) I won't just stay in the official tutorial. As an Android Developer, I really don't have linux c program development experience. I hope the big guys will forgive me. The tutorial is completed u ...

Posted by GiaTuan on Sat, 20 Nov 2021 09:28:28 -0800

ROS-3DSLAM: visual estimator section III initial 3

2021@SDUSC Sunday, November 14, 2021 - Monday, November 15, 2021 1, Background: This time, continue to analyze the contents of the initial folder. This time, it is for the solution_ 5pts, including the header file and cpp file of the file. Solve here_ 5pts means to use the five point method to find the essential matrix, and the code is the ...

Posted by pimp3679 on Sat, 20 Nov 2021 07:53:55 -0800

ROS learning - recording and playback data

This blog will introduce how to use ROS system to record data into a. bag file, and then play back the data to produce similar effects in the running system. Record data (create a bag file) Record topic data from a running ROS system and store it in a bag file. First, open a Terminal window and run roscore. roscore Open the second Termi ...

Posted by buzz on Wed, 17 Nov 2021 17:22:49 -0800

Build two-dimensional laser SLAM from scratch -- code implementation of back-end optimization based on ceres

In the last article, we analyzed how to use G 2O to optimize the pose map Because g2o naturally optimizes the pose graph, it is very suitable for the interface of karto's pose graph. It only needs to assign the corresponding vertices and constraints respectively In this article, let's take a look at another commonly used optimization library ...

Posted by melrse on Tue, 16 Nov 2021 00:40:44 -0800

[basic reserve for system development] combined use of gazebo three-dimensional physical simulation environment of ROS (Part 9)

Catalogue of series articles Tip: you can add the directories of all articles in the series here. You need to add the directories manually TODO: finishing after writing preface Limited cognition, I hope you will forgive me. If you have any problems, I hope to communicate with you and grow together! This paper first makes a brief in ...

Posted by Spades on Wed, 10 Nov 2021 01:24:28 -0800

Installation of Cartographer tutorial and stepping pit

Cartographer installation tutorial and pit record Copyright notice: This article is reproduced from the original article of CSDN blogger "white boots", in accordance with CC 4.0 BY-SA copyright agreement. Please attach the original source link and this notice. Original link: https://blog.csdn.net/weixin_44684139/article/details/104 ...

Posted by aaaaCHoooo on Thu, 21 Oct 2021 19:52:42 -0700

TensorRT_mnist_int8 correction

Define network Defining a network for INT8 is exactly the same as defining a network for any other precision. The weights are imported as FP32, and the builder will calibrate the network to find the appropriate quantization factor, so as to reduce the network to INT8 accuracy. This example uses NvCaffeParser to import a network: const nvcaff ...

Posted by Fsoft on Tue, 19 Oct 2021 13:40:03 -0700

ROS robot -- little turtle drawing a circle (C + +)

Reference article: (4 messages) ROS robot practice - Little Turtle draws a circle_ Poetry and distant blog - CSDN bloghttps://blog.csdn.net/qq_44907912/article/details/105145132 Reference video: [Gu Yueju] Gu Yue · introduction to ROS 21 lecture | introduction to ROS robot_ Beep beep beep_ bilibilihttps://www.bilibili.com/video/BV1zt41 ...

Posted by gb75 on Fri, 15 Oct 2021 20:01:41 -0700