[ros-users] Running stereo_image_proc

[Homer Manalo]

Ok, thanks Patrick.

On Fri, Jan 21, 2011 at 11:34 AM, Patrick Mihelich <
mihelich at 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 <homer.manalo at roboteknik.com
> > 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
>>
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>>
>
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