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Ros2 Humble camera info url ignored when publishing from rtsp stream

before I get started, I'd like to point out that I have done thorough research and studied all similar issues I could find. Unfortunately I didn't find a solution that worked for my problem. I am ...
Rothhammer's user avatar
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Option --square for camera calibration with circle/acircle pattern

Hello, I have a question regarding the camera_calibration package. In the documentation (http://wiki.ros.org/camera_calibration) it is mentioned that it is possible to use a circular / asymmetric ...
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Does stereo_proc undistort images?

I have tried to use the image_pipeline stereo_image_proc to get the rectified images. The question is, when stereo_image_proc produces image_rect images, should they be undistorted? Have a look at my ...
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camera calibration with different chess board size

Hi, I want to perform monocular camera calibration using a chessboard that has 6X6 squares in it where each square has side length as 0.054 m. The number of squares in the chessboard and side of ...
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Probleme with parameter queue_size in image_proc node

Hello everyone, I try to change the size of the message queue in image_proc by raising the parameter ~queue_size in a roslaunch file: ...
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Do i need to calibrate my cameras everytime to use?

Hi, I have two cameras, same make and model and I wanted to get a disparity map using these two as stereo cameras. What doubt I have is that do I need to calibrate my cameras every time I use them or ...
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Compiling ROS Kinetec from source fails when building image_proc

I'm using an Arch machine and trying to compile ROS desktop full from source. The build fails when image_proc is trying to link executable. Here is the error log: ...
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Pipe to camera/image_raw

I have a camera on a raspberry pi and am trying to stream the image in order to do the processing on a linux machine (Ubuntu 14.04 LTS, ROS Indigo). I'm currently streaming rawvideo from the pi using ...
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image_rotate fails to load libimage_rotate.so in ROS Groovy

I'm attempting to use image_rotate in ROS Groovy (working with a PR2) but whenever I try to run image_rotate I get the following error. I have tested this on three different machines all running ROS ...
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Camera Calibration Uses Wrong Aspect Ratio from USB Camera

We are trying to calibrate a USB camera running at 1080p (i.e., 1920x1080). When launching usb_cam and then image_view, the ...
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catkin_make fails weirdly after trying to create a new package

Hello, I am trying to build a new package in a catkin_workspace. After trying to build this package everything seems to be malfunctioning. E.g. if i delete the package under construction and only ...
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calibrating webcam

I'm trying to calibrate my webcam to remove distortions. I run $ rosrun usb_cam usb_cam_node Then this error and warning message is printed out: ...
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streaming pointcloud to remote workstation

Hello, I am trying to use pointcloud generated by a robot on remote workstation. However, I figured that susbscribing pointcloud2 is eating too much bandwidth. Could anybody teach me what is the best ...
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error in image_pipeline

Hi, Today i tried to get the OpenCV 2.4.3 (With CUDA 5.0) working with ROS Fuerte. After i successful compile the OpenCV and test it i tried to compile a ROS program, but every program i compile (that ...
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image_pipeline svn no longer exists on server

I'm trying to svn checkout image_pipeline using the link the ros wiki suggests, but the server is not responding. I am using electric and need a svn source for image_pipeline. Can anyone tell me why ...
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Unable to access the package in rosws

Hi, Im running on Ubuntu 12.04 and ROS fuerte. I want to calibrate 2 individual cameras as a stereocamera. I created an overlay using rosws in my home folder and then added several packages like ...
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How can I calibrate low resolution cameras?

I'm having great difficulties calibrating the intrinsic parameters of a low resolution monocular camera. The camera is a thermal imager with 160x120 pixels, but with a good setup (two high power lamps ...
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down sample camera image on driver or image_proc level

In addition to producing higher resolution images than the wge100 cameras, the PR2's Prosilica also puts out images with much better color quality. In the perfect world, I would have a camera on the ...
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camera1394 compile error on ubuntu 11.04 on ARM

Hello all, I've spent a week unsuccessfully trying to get a Point Grey (PTGrey) Chameleon USB Camera (IEEE 1394 compatible, camera1394 node compatible) up and running on my Pandaboard (OMAP4430) ...
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How can I speed up image rectification?

I hope to increase the rectified frame rate that I'm getting from image_proc. I'm feeding it a 64 fps 704x456 video stream, with that 704x456 rectangle being the region of interest sampled from a ...
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