Fiducial-Based Localization Tutorials for MagniThis document discusses running our fiducial based navigation software on a Ubiquity Robotics robot base, using the supported Raspberry Pi camera. It also assumes that you have a workstation with ROS installed, which is connected to a network in common with the robot. You will need a printer, too. March 18, 2022 at 08:36PM
Calibrating a Monocular Camera with ROS – Robotics with ROS ROS use OpenCV for camera calibration but the format that it stores the data is different than OpenCV. Also, you need to know where to place the camera calibration files so ROS can find it and publish it. 1.First, you need to install usb cam package from ROS and uvcdynctrl to disable autofocus: sudo apt-get install ros-kinetic-usb-cam uvcdynctrl 2.Open … Calibrating a Monocular Camera with ROS Read More » March 18, 2022 at 08:38PM
OpenCV: Detection of ArUco Markers Pose estimation is of great importance in many computer vision applications: robot navigation, augmented reality, and many more. This process is based on finding correspondences between points in the real environment and their 2d image projection. This is usually a difficult step, and thus it is common to use synthetic or fiducial markers to make it easier. March 18, 2022 at 02:24PM
Git Good – The magic of keeping a clean Git history | Blog | simplabs This post is designed to help you form a solid mental model while working with Git both professionally and in an open source project, and how to ensure you are following best practices to make the process easier for everyone. March 17, 2022 at 08:09PM
3 ways to detect slow queries in PostgreSQL This blog post is about handling bad performance in PostgreSQL and shows three useful and quick methods to spot performance problems and slow queries. March 16, 2022 at 05:35PM
How I test Rails applications When I was a Rails beginner I was amazed by Rails and Test Driven Development. But I often struggled with testing because I did not know… March 14, 2022 at 04:55PM
Sinatra Best Practices: Part One While Sinatra’s one-file approach may work well for your one-off, smaller application – it can quickly become a mess as you add on multiple routes, route-handlers, helpers, and configuration.… March 14, 2022 at 04:56PM
You Only Look Once: Unified, Real-Time Object Detection We present YOLO, a new approach to object detection. Prior work on object detection repurposes classifiers to perform detection. Instead, we frame object detection as a regression problem to… March 14, 2022 at 01:31AM
YOLO object detection with OpenCV – PyImageSearc In this guide you will learn how to use the YOLO object detector to detect objects in images and video using OpenCV, Python, and Deep Learning. March 14, 2022 at 01:32AM