Extracting compressed image data from bag file results in doubled up or...
Hi, I'm trying to extract compressed images from a bag file. Here is my launch file: This results in some frames not being saved and some frames being saves multiple times. Also a lot of frames are...
View ArticleReindex .bag using rosbag API
Hello to everyone, I am trying to reindex a file using rosbag API in a Python script. When running `rosbag reindex <.bag file>` in the command line, everything goes as usual (it creates a backup...
View Articlerqt_graph when playing a rosbag
Hello, I am really new with ROS and I am having some problems with rqt_graph. I would like to play a rosbag file and watch all the nodes and topics with rqt_graph as it was during execution....
View ArticleHow to repair a rosbag file download missing some parts
I have a big size (few gigas) rosbag file , I download earlier, and then find out it is missing some info like the image ( form rqt_bag) shows:...
View ArticleDIGITS plug-ins to read ROSBag
Is there a Nvidia DIGITS plug-in that can read ROSBag data directly for neural network training?
View ArticleIs rosbag available on ROS2 and how to benchmark it?
Hello everyone, I'm using ROS2 that I obtained from here: https://github.com/ros2/ros2/wiki/Linux-Development-Setup. Running it on Ubuntu 16.04 with kernel 4.16.7. I am tasked with benchmarking writing...
View ArticleReconstruct PointCloud from RGBD data
I followed [this wiki entry](http://wiki.ros.org/openni_launch/Tutorials/BagRecordingPlayback) and recorded RGBD data using rosbag record /rgbd/depth_registered/camera_info...
View Articlehz of our sensor's the topic was DECREASED, When I record some data with rosbag.
Hello, experts. I used rosbag to acquire our sensor data as camera, lidar. You can reference below spec. Camera Node : 1980x1208 (FHD, RGB), 20 hz Lidar Node : 64 Channel, 20 hz I recorded topics on pc...
View ArticleHow to record robot odometry in multiple bagfiles after resetting the robot's...
I'm running the nodes rosaria, rosaria_client , hokuyo node and avt_vimba camera to record some datasets of routes around campus roads with rosbag in a Pioneer 3AT robot. The robot runs Ubuntu 14.04...
View Articlebag file is empty after rosbag reindexing and fixing .bag.active file
Hello everyone! I'm trying to convert `.bag.active` file into `.bag` file so I can play it inside `rqt_bag` program. The thing is, I tried to follow [this...
View Articleimage_transport rosbag issue
Has anyone else seen problems recording rosbags for all topics of a node using image_transport? > ERROR >...
View ArticleCleanly kill rosbag with python script
I am running several ROS nodes (kinetic) on Raspbian, including a rosbag node that records all published topics. The script below is activated by pressing a physical button and is meant to ensure that...
View ArticleCustom image message type
I'm writing to enquire about possibility of ROS supporting or creating a custom sensor message type for video stream (images). Our product, based on the FPGA, generates the rosbag file and logs one...
View Articlehow record rosbag with python
Hello I use the command line (Terminal) to record images (RGB, RGBD), joy, and IMU data>> rosbag record -O subset /camera/depth/image_raw /camera/rgb/image_raw /joy...
View Articledatatype/md5sum error, publishing with rosbag
I am facing this error when I try to launch my pose3D.launch node : > [ERROR] [1537274177.574505613]:> Client [/pose3D] wants topic /odo to> have datatype/md5sum>...
View ArticleChange message type
When i run the following command line: rostopic info /vehicle/odometry I get this response. I would like to change the type of the msg, from motion_common_msg/Odometry to interval_map/odometry, which I...
View ArticleExport bag of CompressedImage to disk without decoding
I have a bag of compressed images (*/camera/image/compressed*). I wrote a Python script which reads the bagfile using the Python API and writes JPEGs to disk in this way: cv_img =...
View Articlejade - rosbag play with remap
Hi, I would like to play a bag file with rosbag and remap the topics (e.g.: /myTopic:=/playback/myTopic). I tried with **launch file**: `` and from **command line** also ( rosbag play mybag.bag...
View ArticleCreating a bag file out of a image sequence
Let's say I have a series of images and want to create a bag file out of them to use as input for the camera calibration. Is it even necessary to create the bag for the calibration or is there another...
View ArticleArray length handling when serializing messages
I am trying to code a rosbag serializer, and I am trying to generate code from the messages, like https://github.com/ros/genmsg I noticed there's an inconsitency in how to handle unbounded array...
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