Ok, thanks Patrick. On Fri, Jan 21, 2011 at 11:34 AM, Patrick Mihelich < mihelich@willowgarage.com> wrote: > Hi Homer, > > You must calibrate your cameras before you can do stereo. See > http://www.ros.org/wiki/camera_calibration/Tutorials/StereoCalibration. > > Cheers, > Patrick > > On Thu, Jan 20, 2011 at 7:27 PM, Homer Manalo > wrote: > >> I wanted to view stereo images using the stereo_image_proc but I always >> get three blank windows(disparity, left, right). I am using the uvc_stereo >> driver for two separate webcams. I am assuming that this driver fakes the >> synchronization. The driver also publishes the topics at this format: >> /left/image_raw, /right/image_raw so I typed in ROS_NAMESPACE=/, am I right >> on this? The stereo_image_proc window is also displaying an error: "[ERROR] >> [1295580006.697030969]: [stereo_image_proc] Rectified or stereo topic >> requested, but cameras are uncalibrated." Should I get the cameras >> calibrated first? Is there any way I can run it without calibrating, just >> for simple testing? Here's the node info if it can help: >> >> Node [/stereo_image_proc_1295578845843245812] >> Publications: >> * /left/image_mono [sensor_msgs/Image] >> * /left/image_color [sensor_msgs/Image] >> * /points2 [sensor_msgs/PointCloud2] >> * /left/image_rect_color [sensor_msgs/Image] >> * /rosout [roslib/Log] >> * /points [sensor_msgs/PointCloud] >> * /right/image_rect [sensor_msgs/Image] >> * /right/image_mono [sensor_msgs/Image] >> * /disparity [stereo_msgs/DisparityImage] >> * /right/image_color [sensor_msgs/Image] >> * /stereo_image_proc_1295578845843245812/parameter_updates >> [dynamic_reconfigure/Config] >> * /left/image_rect [sensor_msgs/Image] >> * /right/image_rect_color [sensor_msgs/Image] >> * /stereo_image_proc_1295578845843245812/parameter_descriptions >> [dynamic_reconfigure/ConfigDescription] >> >> Subscriptions: >> * /right/image_raw [sensor_msgs/Image] >> * /left/camera_info [sensor_msgs/CameraInfo] >> * /right/camera_info [sensor_msgs/CameraInfo] >> * /left/image_raw [sensor_msgs/Image] >> >> Services: >> * /stereo_image_proc_1295578845843245812/set_logger_level >> * /stereo_image_proc_1295578845843245812/set_parameters >> * /stereo_image_proc_1295578845843245812/get_loggers >> >> >> contacting node http://roboteknik-desktop:48241/ ... >> Pid: 3980 >> Connections: >> * topic: /rosout >> * to: /rosout >> * direction: outbound >> * transport: TCPROS >> * topic: /stereo_image_proc_1295578845843245812/parameter_descriptions >> * to: /reconfigure_gui_4042_1295578871464 >> * direction: outbound >> * transport: TCPROS >> * topic: /stereo_image_proc_1295578845843245812/parameter_updates >> * to: /reconfigure_gui_4042_1295578871464 >> * direction: outbound >> * transport: TCPROS >> * topic: /left/image_rect >> * to: /stereo_view_1295579688171590464 >> * direction: outbound >> * transport: TCPROS >> * topic: /right/image_rect >> * to: /stereo_view_1295579688171590464 >> * direction: outbound >> * transport: TCPROS >> * topic: /disparity >> * to: /stereo_view_1295579688171590464 >> * direction: outbound >> * transport: TCPROS >> * topic: /left/image_raw >> * to: http://roboteknik-desktop:55552/ >> * direction: inbound >> * transport: TCPROS >> * topic: /left/camera_info >> * to: http://roboteknik-desktop:55552/ >> * direction: inbound >> * transport: TCPROS >> * topic: /right/image_raw >> * to: http://roboteknik-desktop:55552/ >> * direction: inbound >> * transport: TCPROS >> * topic: /right/camera_info >> * to: http://roboteknik-desktop:55552/ >> * direction: inbound >> * transport: TCPROS >> >> _______________________________________________ >> ros-users mailing list >> ros-users@code.ros.org >> https://code.ros.org/mailman/listinfo/ros-users >> >> > > _______________________________________________ > ros-users mailing list > ros-users@code.ros.org > https://code.ros.org/mailman/listinfo/ros-users > >