I want to call the callback function when messages with the same timestamp come from both rgb and depth topics
Hi. I am using realsense-ros. I want to call the callback function when messages with the same timestamp come from both rgb(/camera/color/image_raw ) and depth(/camera/depth/image_rect_raw) topics. I set enable_sync and align_depth in rs_camera.launch to true. I then used message_filters to synchronize the two topics.
message_filters::Subscriber<sensor_msgs::Image> rgb_sub(nodeHandle_, cameraTopicName, cameraQueueSize);
message_filters::Subscriber<sensor_msgs::Image> depth_sub(nodeHandle_, depthTopicName, depthQueueSize);
message_filters::TimeSynchronizer<sensor_msgs::Image, sensor_msgs::Image> sync(rgb_sub, depth_sub, 10);
sync.registerCallback(&TkdnnObjectDetector::cameraCallback, this);
After doing this, I tried to run it, but the cameraCallback function was never called. Do you have any advice? Thanks!
