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

Deploying BiSeNetV2 model with OpenVINO in Ubuntu 20.04 environment

1. Overview Semantic segmentation is the basis of computer vision's understanding of the real world, ranging from automatic driving to personal applications. As long as you observe carefully, you can find the application places of semantic segmentation everywhere. In fact, semantic segmentation is equivalent to image segmentation + understandi ...

Posted by droomagon on Sat, 09 Oct 2021 02:38:54 -0700

3D reconstruction tool -- pclpy tutorial point cloud features

This tutorial is open source: GitHub Welcome, star 1, Normal estimation 1. Parameter description Since almost all classes in PCL inherit from the basic pcl::PCLBase class, the pcl::Feature class accepts input data in two different ways: A complete point cloud data set is forced through setinputcloud (pointcloudconstptr &) Any ...

Posted by jon23d on Tue, 05 Oct 2021 14:58:38 -0700

Building a four rotor multi aircraft flight platform based on ROS and PX4 under Optitrack visual positioning

1 stand alone platform The first is to build a stand-alone platform, which is divided into two steps Assemble the aircraft to realize the manual flight of the remote controllerThe onboard board is added to realize the autonomous flight of onboard control aircraft 1.1 four rotor hardware assembly Four rotor hardware components: framePad ...

Posted by daneilair on Sat, 02 Oct 2021 16:58:33 -0700

TI deep learning (TIDL) -- 2

1.3.4. Target file system 1.3.4.1. Firmware OpenCL firmware includes pre encapsulated DSP TIDL Library (with hard coded core) and EVE TIDL library following custom accelerator model. OpenCL firmware is downloaded to DSP and M4/EVE immediately after Linux boot: - dra7-ipu1-fw.xem4 -> /lib/firmware/dra7-ipu1-fw.xem4.opencl-monitor - dra7-dsp1 ...

Posted by fordyh on Sat, 02 Oct 2021 13:43:57 -0700

Timestamp of TF transform in ROS learning

reference resources 1. Time stamp of TF coordinate broadcast 1.1. Function of timestamp First clarify what is the coordinate transformation of TF: in fact, it is the pose represented by the child coordinate system in the parent coordinate system, which can also be regarded as the coordinate transformation relationship from the child coo ...

Posted by windwaker on Sat, 02 Oct 2021 13:37:18 -0700

pclpy statistical filtering

1, Algorithm principle 1. Principle overview    the point cloud data set generated by lidar sometimes receives echo signals incorrectly, which will lead to some wrong values. Due to the influence of measurement errors caused by scanning results, errors will inevitably occur in other processing of the point cloud, and some noise ...

Posted by nimzie on Thu, 30 Sep 2021 17:47:53 -0700

Data structures and algorithms

#Data structure and algorithm Introduction There is no best algorithm in the world, only the most suitable algorithm Logical structure Physical structure Talk about algorithm Algorithm time complexity Just tell you to pay attention to the highest order, then ignore the constant product of con ...

Posted by izzy on Wed, 29 Sep 2021 14:07:18 -0700

Write C + + server by hand (37): tear code by hand -- asynchronous connect, the cornerstone of high concurrency multithreading technology [10000 words long text]

Navigation for this series of articles:   Write C + + server by hand (0): column - Summary navigation [updating]  The default blocking mode is used when connect is created, but in reality, the connection speed may be slow due to poor network, intermediate proxy server, gateway and other factors. At this time, in blocking mode, the pr ...

Posted by pkSML on Wed, 29 Sep 2021 11:52:43 -0700

Kalman filter for tracking and prediction of moving targets on images

Kalman filter for tracking and prediction of moving targets on images brief introduction Kalman filter predicts the current state through the previous state and uses the current observation state for correction The direct measurements are left, top, right and bottom, representing the upper left and lower right coordinates of the targe ...

Posted by henrygao on Thu, 23 Sep 2021 07:07:48 -0700