Get Ee106a Lab 4: Image Manipulation, Camera Calibration & Ar Tags - Bcourses Berkeley

This guide provides a comprehensive overview of how to successfully complete the EE106A Lab 4: Image Manipulation, Camera Calibration & AR Tags assignment on Bcourses Berkeley. Whether you are familiar with the content or are encountering it for the first time, this guide is designed to support you through each step.

Follow the steps to fill out the form accurately and effectively.

1. Press the ‘Get Form’ button to download the lab resources file. Make sure to unzip this file in your designated ros_workspaces directory.
2. Open a terminal and run the command 'catkin_make' to compile the necessary packages within your workspace. This is essential for preparing the environment for the upcoming tasks.
3. Modify your ~/.bashrc file to ensure it sources the correct setup script by adding the line 'source ~/ros_workspaces/lab4/devel/setup.bash'. Remember to remove any other similar lines that may interfere with the workspace.
4. Familiarize yourself with the provided content by reviewing the sections on roslaunch, webcam interfaces, and OpenCV image display tools. This foundational knowledge will aid in the following steps.
5. Edit the run_cam.launch file in the lab4_cam package to uncomment the relevant section. This step allows you to define the nodes and parameters necessary for your ROS setup.
6. Run your updated launch file using the command 'roslaunch lab4_cam run_cam.launch'. This will launch the ROS core and the 'usb_cam' node, allowing you to visualize the webcam feed.
7. Use the 'image_view' command to visualize the output from the camera. Adjust topic subscriptions as needed to ensure you are receiving the video stream properly.
8. Capture frames and process images by making necessary modifications in the image_process.py script to include homography calculations. Follow the guidance in the lab resources for necessary calculations.
9. When completed, test your measurement functions by selecting points on the output images, and ensure the data collected meets the lab's objectives.
10. Finally, save your work, download any relevant output, and prepare to submit the completed lab assignment in accordance with the submission guidelines provided in Bcourses Berkeley.

Complete your EE106A Lab 4 assignment online today to enhance your understanding of image manipulation and camera calibration!