Hi Sacha, maybe you wonna show us the code? Or profile the node using http://pr.willowgarage.com/wiki/sysprof. cheers, D. On Thu, May 13, 2010 at 4:46 PM, Blaise Gassend wrote: > There is an image_view in the rviz package that might be faster. (no > guarantee) > > On Thu, 2010-05-13 at 10:43 +0100, Shadow wrote: >> Eric : >> Thanks, image+view is a great solution to show what I wanted. >> Unfortunately, it is the same problem than before, around 50% of my >> processor being used. >> >> Gary : >> I've tried both 320*240 and 640*480 pictures, and the difference of >> computing between those two resolution is not significant. I don't know >> how to define more clearly what is eating too much : >> 3748 hand      20   0 84984  22m  15m S   52  1.1   0:04.23 >> cameradc1394 >> What I did to test that was to launch the driver and to display the >> picture at the same time with roslaunch. >> >> Le mercredi 12 mai 2010 à 07:30 -0400, Eric Perko a écrit : >> > Have you tried using image_view (http://www.ros.org/wiki/image_view) >> > on your raw image topic? >> > >> > For example, it should be something like 'rosrun image_view image_view >> > image:=/camera/image_raw'. You can determine the actual image topic >> > using 'rostopic list'. >> > >> > If you still want to display with OpenCV, you can take a look at the >> > CvBridge package (http://www.ros.org/wiki/cv_bridge) to convert >> > between ROS images and OpenCV images. >> > >> > - Eric >> > >> > On Wed, May 12, 2010 at 6:04 AM, Shadow wrote: >> > > Hi, >> > > I am trying the camera1394 driver right now to see if the same problem >> > > occurs, but I can not manage to display the frame with that driver using >> > > opencv, like it was easy to do with cameradc. >> > > >> > > I am using the latest Ubuntu with kernel 2.6.32-22, and here is my >> > > firewire card : >> > > 00:08.0 FireWire (IEEE 1394): VIA Technologies, Inc. VT6306/7/8 [Fire >> > > II(M)] IEEE 1394 OHCI Controller (rev c0) >> > > 00:09.0 FireWire (IEEE 1394): NEC Corporation uPD72874 IEEE1394 OHCI 1.1 >> > > 3-port PHY-Link Ctrlr (rev 01) >> > > >> > > If there is any integrated solution to display the stream, let me know, >> > > since the problem only occurs when it is displayed. >> > > >> > > Thanks. >> > > >> > > Le mardi 11 mai 2010 à 11:59 -0500, Jack O'Quin a écrit : >> > >> On Tue, May 11, 2010 at 11:31 AM, Eric Perko wrote: >> > >> > Sacha, >> > >> > >> > >> > Have you seen the same behavior with the newer camera1394 >> > >> > (http://www.ros.org/wiki/camera1394) driver or is this just the >> > >> > cameradc1394 driver? >> > >> >> > >> If the problem appears with both drivers (likely IMHO), you are >> > >> probably not getting DMA access due to some difficulty in your >> > >> low-level library or kernel drivers. >> > >> >> > >> What distribution, kernel and firewire card are you running? >> > > >> > > >> > > _______________________________________________ >> > > 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 >> > >> >> >> _______________________________________________ >> 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 > -- MSc. Dejan Pangercic PhD Student/Researcher Intelligent Autonomous Systems Group Technische Universität München Telephone: +49 (89) 289-26908 E-Mail: dejan.pangercic@cs.tum.edu WWW: http://ias.cs.tum.edu/people/pangercic