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Questions tagged [syncronization]

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How to check that two topics are synced?

Right now, I'm recording the two topics using rosbag and seeing if the messages are aligned. But, I'm not sure if rosbag respects the original timestamps or gives a new timestamp based on when it ...
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Rosbag and simulated time

Hello all, I am trying to run a bag file if simulated time but I am not succeeding on it. Here is what happens: After I run the bag file with the command ...
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Problems publishing synchronized topics

I want to publish image synchronized topics using following code: ...
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Syncronization of Timestamps

Hello everyone, Currently I am logging the IMU data , GPS data and other data but since these nodes log data at different frequencies , my post processing is pointless ( Timestamps are different ). I ...
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Sync problem related to viso2

Hi All. I'm trying to setup and run Viso2 node in ros fuerte. I have a problem related to a sync warning in gscam, so I asked this question:http://answers.ros.org/question/84611/synchronized-problem-...
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Singelshot from multiple Kinects / synchronize Kinects

Hi there, I'm trying to build a portable device with a pandaboard and two kinects on it. Because of the fact that the Pandaboard just provide one USB-bus I would like to knows if it's possible to ...
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Synchronizing image display and services between two ROS nodes

Now that I have been put on the right track for synchronizing topics, I would like to do something similar between an image message topic and a service that draws a marker (e.g. rectangle) on that ...
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tf synchronization

Hi! I am trying to synchronize a camera input with an servo with no feedback and the tf library. More specifically: There is a camera (cameraNode) that asynchronously (with a ros::timer) takes ...
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Time jumped forward

Hi folks, I am receiving some error messages from everything that uses planning_environment (OMPL, Trajectory Filter, you name it!), namely that the joint_states messages are discarded and I should ...
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low rate of stereo prosilica cameras for face_detector

I'm using a pair of prosilica cameras on care-o-bot, receiving images (left, right, disparity) at rate of about 2 hz, few synchronized triples, which leads to use _approximate_sync:=True _queue_size:=...
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Synchronize throttling

Does the throttle node under topic_tools support synchronized throttling? I have a stereo camera and I'm logging left/image_rect, right/image_rect and the relevant camera info topics. Is there an easy ...
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