anto1389's profile - activity

Thank you very very much! Let me know if you can make it! :)

Sorry, for asking you a lot of question, but i don't know how i can do it. Could you tell me, please? Thank you very much!

I am sorry but there are still error: ../../lib/libpcl_io.so.1.7.0: undefined reference to `ros::TimeBase<ros::Time, ros::Duration>::fromNSec(unsigned long long)' can you tell me how i can download the last version which didn't have errors? Thank you very much!

/pcl/io/src/image_grabber.cpp:634:34: error: no match for ‘operator=’ in ‘cloud_color.pcl::PointCloud<pcl::PointXYZRGBA>::header.std_msgs::Header_<std::allocator<void> >::stamp = timestamp’ How can i solve this?

It is not working! Building CXX object io/CMakeFiles/pcl_io.dir/src/image_grabber.cpp.o /pcl/io/src/image_grabber.cpp: In member function ‘bool pcl::ImageGrabberBase::ImageGrabberImpl::getCloudVTK(size_t, sensor_msgs::PointCloud2&, Eigen::Vector4f&, Eigen::Quaternionf&) const.

Hello, I can't download the pcl17 package from this repository: http://svn.pointclouds.org/ros/branches/fuerte/perception_pcl_unstable/pcl17/ Has been the repository been changed? How can i download it?

Thank you very much. Antonio!

Thank you very much!

I did what you suggest and i the highest values that i get are the followings:

Linearity RMS Error: 0.205 Pixels Reprojection RMS Error: 0.137 Pixels for RGB

Linearity RMS Error: 0.437 Pixels Reprojection RMS Error: 0.327 Pixels for IR

I think this values are good enough, right? And one more question, i did the calibration of the IR camera with the calibration file of the RGB camera loaded. Is it the right way to do it or i should calibrate the IR camera whithout loading the RGB calibration file?

Thanks again!

Hello,

I am doing an app to merge point clouds. I am using kinect but i need to improve accuracy because I think my program is working (using Iterative closest point and detecting features such as SURF) but I don't get good results because the RGB camera transformation is not good enough to get "perfect point clouds" (I mean that i can see parts of objects at places where they shouldn't be, like seeing the edge of a box in the wall) This is the problem that make my results bad.

I have performed several calibration with the camera_calibration package in Ros fuerte to solve the problem but i get very different results and the calibration is done in the same way from each calibration. Some results:

[532.486920156757, 0, 313.943582352682, 0, 532.067717610884, 259.017556441565, 0, 0, 1]

[512.878303, 0 , 310.799036, 0, 513.067828 256.711335, 0, 0, 1]

In my opinion this results makes me think that i am doing something wrong in the calibration process but i follow exactly the tutorial http://www.ros.org/wiki/openni_launch/Tutorials/IntrinsicCalibration?action=show&redirect=openni_camera%2Fcalibration so i don't know what i am doing wrong.

Besides, there is some problems with the openni_launch as you can see at this post: http://answers.ros.org/question/53706/registered-depth-image-is-black/ I solved the problem but now i am wondering if the variable depth_regitration should be on or off.

Does anyone know what this hapens to me? could you give me any advice?

Thanks you very much! Antonio.

Hello everybody,

I am running two programs at the same time so the computational cost is too high. Hence, i thought in reducing the frame rate of the kinect. I am using openni_launch and fuerte. Does anyone know how to reduce the FPS or whether it is possible?

Thank you very much!

Antonio

But the problem it is that if you turn off that variable the point cloud is not a correct one because the depth and the rgb information is not in the same reference frame! As you can see in one of the topicis you said that they talk about the same topics!

Edit 2

I made it work finally, i don't know whether it will work for you. What i did, was uninstall openni_camera, openni_launch, libopenni-dev and install agian openni and kinect sensor as follows:

To install openni

$ mkdir ~/kinect 
$ cd ~/kinect
$ git clone https://github.com/OpenNI/OpenNI.git -b unstable
$ cd OpenNI/Platform/Linux/CreateRedist
$ bash RedistMaker
$ cd ../Redist/OpenNI-Bin-Dev-Linux-x86*/
$ sudo ./install.sh

To install kinect sensor

$ cd ~/kinect
$ git clone https://github.com/avin2/SensorKinect
$ cd SensorKinect/Platform/Linux/CreateRedist
$ bash RedistMaker
$ cd ../Redist/Sensor-Bin-Linux-x86*
$ sudo sh install.sh

Once, i installed this, i installed back openni_camera and openni_launch. This worked for me, i hope it works for you all too!

I have the same problem than you, but i haven't found any solution yet!