Synchronizing LiDAR and Camera Data for Offline Processing Using ROS

<p>Why is it important to synchronize this data? There are different reasons. One is that different sensors collect data at different rates. For instance, my LiDAR collects data at 10 Hz (10 samples per second) while my camera takes images at 3 Hz. For every image, we have about 3 point clouds. Another reason is related to how fast your machine is moving. If you were collecting data out of sensors mounted on a car, the difference between a point cloud collected at a given time and the corresponding context image collected about a second later would be big if the car is moving very fast. The image might be showing things that the LiDAR could not catch earlier (occluded objects, etc).</p> <p><a href="https://medium.com/@kidargueta/synchronizing-lidar-and-camera-data-for-offline-processing-using-ros-de000a3e29cc"><strong>Click Here</strong></a></p>