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2022-01-11 04:15:36 -0500 commented answer What does projection matrix provided by the calibration represent?

Hi, could you kindly elaborate on this? Why does image_rect have a different intrinsic matrix as P compared to image_raw

2022-01-11 04:15:20 -0500 commented answer What does projection matrix provided by the calibration represent?

According to this line in image_proc node: https://github.com/ros-perception/image_pipeline/blob/8f99f41786f907a8894478

2022-01-11 04:12:25 -0500 commented answer What does projection matrix provided by the calibration represent?

Hi, could you kindly elaborate on this? Why does image_rect have a different intrinsic matrix as P compared to image_raw

2021-12-09 02:51:20 -0500 commented answer tf::TransformListener::transformPose [exception] target_frame does not exist

Thank you, Tom. It still applies for nowadays TF2 tfBuffer.lookupTransform. Just making it a member variable if it's a c

2021-11-26 03:07:50 -0500 commented answer Significance of ros::spinOnce()

I would like to ask the same question also. But I do notice that there ain't no ros node without any topic publishment o

2021-11-23 06:21:13 -0500 received badge  Supporter (source)
2021-11-19 02:58:13 -0500 commented answer Could not find a connection between 'map' and 'base_link' because they are not part of the same tree.Tf has two or more unconnected trees.

Same, how did you call the lookupTransform()?

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