Ok, thanks Patrick.<br><br><div class="gmail_quote">On Fri, Jan 21, 2011 at 11:34 AM, Patrick Mihelich <span dir="ltr"><<a href="mailto:mihelich@willowgarage.com">mihelich@willowgarage.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
Hi Homer,<br><br>You must calibrate your cameras before you can do stereo. See <a href="http://www.ros.org/wiki/camera_calibration/Tutorials/StereoCalibration" target="_blank">http://www.ros.org/wiki/camera_calibration/Tutorials/StereoCalibration</a>.<br>
<br>Cheers,<br>Patrick<br><br><div class="gmail_quote"><div><div></div><div class="h5">On Thu, Jan 20, 2011 at 7:27 PM, Homer Manalo <span dir="ltr"><<a href="mailto:homer.manalo@roboteknik.com" target="_blank">homer.manalo@roboteknik.com</a>></span> wrote:<br>
</div></div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"><div><div></div><div class="h5">
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:<br>
<br>Node [/stereo_image_proc_1295578845843245812]<br>Publications: <br> * /left/image_mono [sensor_msgs/Image]<br> * /left/image_color [sensor_msgs/Image]<br> * /points2 [sensor_msgs/PointCloud2]<br> * /left/image_rect_color [sensor_msgs/Image]<br>
* /rosout [roslib/Log]<br> * /points [sensor_msgs/PointCloud]<br> * /right/image_rect [sensor_msgs/Image]<br> * /right/image_mono [sensor_msgs/Image]<br> * /disparity [stereo_msgs/DisparityImage]<br> * /right/image_color [sensor_msgs/Image]<br>
* /stereo_image_proc_1295578845843245812/parameter_updates [dynamic_reconfigure/Config]<br> * /left/image_rect [sensor_msgs/Image]<br> * /right/image_rect_color [sensor_msgs/Image]<br> * /stereo_image_proc_1295578845843245812/parameter_descriptions [dynamic_reconfigure/ConfigDescription]<br>
<br>Subscriptions: <br> * /right/image_raw [sensor_msgs/Image]<br> * /left/camera_info [sensor_msgs/CameraInfo]<br> * /right/camera_info [sensor_msgs/CameraInfo]<br> * /left/image_raw [sensor_msgs/Image]<br><br>Services: <br>
* /stereo_image_proc_1295578845843245812/set_logger_level<br> * /stereo_image_proc_1295578845843245812/set_parameters<br> * /stereo_image_proc_1295578845843245812/get_loggers<br><br><br>contacting node <a href="http://roboteknik-desktop:48241/" target="_blank">http://roboteknik-desktop:48241/</a> ...<br>
Pid: 3980<br>Connections:<br> * topic: /rosout<br> * to: /rosout<br> * direction: outbound<br> * transport: TCPROS<br> * topic: /stereo_image_proc_1295578845843245812/parameter_descriptions<br> * to: /reconfigure_gui_4042_1295578871464<br>
* direction: outbound<br> * transport: TCPROS<br> * topic: /stereo_image_proc_1295578845843245812/parameter_updates<br> * to: /reconfigure_gui_4042_1295578871464<br> * direction: outbound<br> * transport: TCPROS<br>
* topic: /left/image_rect<br> * to: /stereo_view_1295579688171590464<br> * direction: outbound<br> * transport: TCPROS<br> * topic: /right/image_rect<br> * to: /stereo_view_1295579688171590464<br> * direction: outbound<br>
* transport: TCPROS<br> * topic: /disparity<br> * to: /stereo_view_1295579688171590464<br> * direction: outbound<br> * transport: TCPROS<br> * topic: /left/image_raw<br> * to: <a href="http://roboteknik-desktop:55552/" target="_blank">http://roboteknik-desktop:55552/</a><br>
* direction: inbound<br> * transport: TCPROS<br> * topic: /left/camera_info<br> * to: <a href="http://roboteknik-desktop:55552/" target="_blank">http://roboteknik-desktop:55552/</a><br> * direction: inbound<br>
* transport: TCPROS<br>
* topic: /right/image_raw<br> * to: <a href="http://roboteknik-desktop:55552/" target="_blank">http://roboteknik-desktop:55552/</a><br> * direction: inbound<br> * transport: TCPROS<br> * topic: /right/camera_info<br>
* to: <a href="http://roboteknik-desktop:55552/" target="_blank">http://roboteknik-desktop:55552/</a><br>
* direction: inbound<br> * transport: TCPROS<br>
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