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2014-01-28 17:29:34 -0500 | marked best answer | [Error] nodelet pcl/* crash Hi, I've switch to Groovy and we i tried to run my launch file with calls a pcl nodelet, the nodelet crashes. I tried to load it manualy (command-line) and i'm getting the same error. I do And get all OK. In another terminal i run: and i get: and on the 1st terminal (nodelet manager) i get This happens even without running anything that publish the /camera/depth_registered/points. I can make this happen with just 3 terminals, the roscore and the two i described here. Also this happens for the Passtrough, VoxelGrid, StatisticalOutlierRemoval Thanks |
2014-01-28 17:29:06 -0500 | marked best answer | 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 uses the kinect) gives me this This is with and without using the Opencv. I also uninstall the Opencv 2.4.3, restart the pc and noting. I still get the same error... Did i mess up with ROS or there was an update (that i didn't notice) that broke this? How can i solve this? Thanks Edit: I re-install every thing (even linux) and its the same thing. On a fresh install its every thing OK. This time i installed CUDA 4.2 and PCL 1.7 (ros version) and now this happens again. So i'm inclined to say its a problem related to CUDA (the common thing between the two "experiences") I installed CUDA according to https://help.ubuntu.com/community/Cuda |
2014-01-28 17:28:25 -0500 | marked best answer | Pcl error in stl container Hi, I'm using ROS fuerte with Ubuntu 11.10 and i'm having a problem with pcl. I'm geting a PointCloud from the kinect and later on the program i'm putting that in a std::deque. But sometimes this gives me an error. Acording to the that page the problem is that the deque(PointCloud) must be aligned according to the eigen files. The PCL 1.5.1 in the file point_types.cpp shows that the PointXYZRGB is aligned but the PCL 1.5 that comes with ROS on the same file (but .h) have (line 299): only and no anywhere in the file. this is my code: Can i do anything to this? it's the same error as http://answers.ros.org/question/10040/hand_interaction-unaligned-array-assertion/ (this) thanks |
2014-01-28 17:25:06 -0500 | marked best answer | ROS Electric Opencv transition Hi there, I've install the electric version, and after made a program with vision-opencv, cv-bridge and opencv2 based on a example program from vision_opencv/cv_bridge after that i discover that opencv2 is deprecated, so i want to make the change to keep the program working. The problem is that i dind't understand the instructions on here. I've put on the CMakeLists.txt this: and at my cpp file i still have: i did noting in the vision_opencv package. I also see that on /usr/include/opencv-2.3.1/opencv i have the following files: It doesn't seem ok. for instance the file imgprog.hpp is missing... what do i do to make ros use the system dependency opencv? Thanks! |
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2013-09-04 10:02:56 -0500 | answered a question | Hardware Requirements for Camera and sensor it depends on the cameras and your speed limit. but if the images are 640x480 and you don't do anything crazy you can achieve real-time with that setup. |
2013-08-22 13:13:12 -0500 | commented question | openni registration fails What version off Mint? There is a bug with the 32 bits version of ubuntu that makes this error, as soon as you enable the registration the point cloud is full of NaNs. Also check this: http://answers.ros.org/question/53706/registered-depth-image-is-black/?answer=74272#post-id-74272 |
2013-07-22 06:54:25 -0500 | commented question | Strange distortion in rectified image (stereo_image_proc) yes, i would start from there. Do this tutorial and check the output of the camera. http://www.ros.org/wiki/camera_calibr... if its ok go to the stereo calibration. Also, if i understood you are using a enclosure. It could be the culprit on the distortion |
2013-07-18 09:15:02 -0500 | commented question | Strange distortion in rectified image (stereo_image_proc) What did you do to get to that point? You should calibrate each camera (intrinsics) first, and then do the calibration between cameras (extrisinc) |
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2013-07-02 16:20:00 -0500 | commented question | compiling error with: ROS Fuerte + pcl what are your includes? |
2013-07-02 16:10:16 -0500 | answered a question | Openni for groovy version Just install the openni_launch and the openni_camera |
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2013-06-27 16:48:16 -0500 | asked a question | pcl 1.7 install on groovy Hey, I'm trying to install the pcl1.7 from https://github.com/ros-perception/perception_pcl.git (the groovy-unstable-devel) in ubuntu 12.04 64 bits with ROS Groovy. I has still using the rosbuild system, but it appears that the pcl git is allready made for catkin. So i created a catkin workspace as the the tutorial, clone the git to the src dir, and making catkin_make i get this: What should i do? I've read the tutorials and it didn't give me a answer. Thanks |
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2013-05-29 07:22:07 -0500 | answered a question | How can I add one pcl Pointcloud_xyzrgb to another? Are you populating the header on the pointclouds? for debug proposes you can use the pcl viewer with booth PointClounds(with diferent colors for example) |
2013-05-26 02:43:40 -0500 | commented question | Kinect extrinsic calibration (between depth and built-in cameras) strange. Yes, the Contrast Augmentor is only for IR. This packaged seams dead and without a substitute. I tried to use it on groovy (compiled from the source) and there is a error with cv_bridge on a conversion. |
2013-05-23 03:23:35 -0500 | commented question | Openni registration problem My "solution" was to switch to a 64bits ubuntu. |
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2013-05-23 01:57:51 -0500 | commented question | Kinect extrinsic calibration (between depth and built-in cameras) on both RGB and IR? What version of ROS are you using? |
2013-05-19 08:06:20 -0500 | answered a question | Kinect extrinsic calibration (between depth and built-in cameras) Try using this: contrast-augmenter The theory is that there is a bug somewhere on the image pipeline (there was a topic explaining that), if i'm not mistaken the imageshow is using the 8 LSB and the checkerboard is using the 8 MSB, so you need to shift the bits to transform the LSB in MSB. The node that i liked does that for you. Don't forget to make that the new input to the camera calibration program |
2013-05-09 23:39:48 -0500 | answered a question | how to run surfgpu on opencv with ros? As far as i know, the OpenCV that cames with ROS doesn't have the GPU module. So the first step is to install that and make sure you are linking against the new OpenCV and not the ROS one. |
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2013-04-15 05:39:21 -0500 | answered a question | registered depth image is black This is likely a bug on the implementation, i'v open a issue ticket on github, and i sugest that if you have the same problem to do the same (in my ticket or in another). Here it is: https://github.com/ros-drivers/openni_camera/issues/13 |
2013-04-15 05:34:24 -0500 | commented question | Invalid point cloud from Kinect by using openni_camera Its probabliy a bug on openNi by ros. If you search here you find multiple people with the same problem. I recomend to put a issue ticket on the github for openni, like this one (or add to this) : https://github.com/ros-drivers/openni_camera/issues/13 |
2013-04-15 05:01:44 -0500 | commented question | Openni registration problem If you have this problem please say it on the github page. here is my issue ticket: https://github.com/ros-drivers/openni_camera/issues/13 They didn't seem to find that important (it seams they didn't even read thing right), maybe if more users put the same issue... |
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2013-03-28 16:28:28 -0500 | commented question | Openni registration problem I also think it is hardware dependent. working on my room there is another studend with a different pc and everything works fine (just by instaling openni-camera and launch). For me the strange thing is that the OpenNi binaries works flawless on every pc, but the ROS (and PCL?) library doesn't |
2013-03-28 06:17:56 -0500 | asked a question | Openni registration problem Hi, I'm having a problem with the openni registration on a kinect. As many people around here when i enable the depth_registration option i only receive NaN's. This is on a fresh install of booth ubuntu 12.04 and ros groovy from yesterday. I allready tried to follow this "tutorial" here and here because it's the same problem, but i still can't get the thing to work, and running the OpenNi samples every thing is great. This is a problem that exists for a long time and no solution yet... It's very annoying because i need it for my thesis What can i try to solve this? Thanks |
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2013-03-11 01:44:13 -0500 | commented answer | Cannot launch openni_camera: No devices connected (ROS electric) I'm also getting this error on fuerte and ubuntu 12.04 32bits ( i install the 32bits NITE) |