zubair's profile - activity

hi guys

i am trying to add opencv_contrib module to my existing opencv and i am getting following error, please help

-- Looking for sys/videoio.h - not found
-- Checking for module 'libavresample'
--   No package 'libavresample' found
-- Found apache ant 1.9.6: /usr/bin/ant
-- Caffe:   NO
-- Protobuf:   YES
-- Glog:   NO
CMake Error at /home/zubair/opencv_contrib/modules/dnn/cmake/OpenCVFindLibProtobuf.cmake:32 (ocv_download):
  Unknown CMake command "ocv_download".
Call Stack (most recent call first):
  /home/zubair/opencv_contrib/modules/dnn/CMakeLists.txt:5 (include)


-- Configuring incomplete, errors occurred!
See also "/home/zubair/opencv/CMakeFiles/CMakeOutput.log".
See also "/home/zubair/opencv/CMakeFiles/CMakeError.log".

these are last few lines of error ..

hi all

i have some params which i defined in my launch file as below :

<node name="tfs" pkg="ctt_tools" type="tfs" respawn="true" />
<param name = "point_x_1" value = "23" />
<param name = "point_x_2" value = "26" />
<param name = "point_y_1" value = "-4.70" />
<param name = "point_y_2" value = "4.50" />
</node>

and i want to use these params in my cpp file in the code as below :

        if(m.point.x > 23 && m.point.x < 26 && m.point.y > -4.70 && m.point.y < 4.50 )
        { 
            for (int i=0; i<palletdrop.size();i++)
            {
                if(palletdrop[i].isInside(m.point.x,m.point.y))
                {
                    palletdrop[i].setOccupied();
                    //std::cout<<"Another on area "<<i<<std::endl;
                }
            }

        }

in place of values 23 , 26 etc i want o use params i defined in launch file... how can i do that ???

any suggestions?

thanks all ..

hello guys

how can i publish cmd_vel at for instance 20 times per sec ?? where should this be included ??

velPub = nh.advertise<geometry_msgs::Twist>("/agv1/cmd_vel", 20);

this way ??

int main(int argc, char** argv)
{

    ros::init(argc, argv, "image_processor");
    ros::NodeHandle nh;
    image_transport::ImageTransport it(nh);

    cv::namedWindow("blob");
    cv::createTrackbar("LowerH", "blob", &LowerH, 179, NULL);
    cv::createTrackbar("UpperH", "blob", &UpperH, 179, NULL);
    cv::createTrackbar("LowerS", "blob", &LowerS, 255, NULL);
    cv::createTrackbar("UpperS", "blob", &UpperS, 255, NULL);
    cv::createTrackbar("LowerV", "blob", &LowerV, 255, NULL);
    cv::createTrackbar("UpperV", "blob", &UpperV, 255, NULL);

    //cv::namedWindow(WINDOW, CV_WINDOW_AUTOSIZE);
    //cv::namedWindow(RESULT, CV_WINDOW_AUTOSIZE);

    ros::Subscriber dep;

    dep = nh.subscribe("/camera/depth_registered/points", 1, depthcallback);
    image_transport::Subscriber sub = it.subscribe("/camera/rgb/image_rect_color", 1, blobDetectionCallback);

    followmemsg_pub = nh.advertise<blobdetection::Followmemsg>("/agv1/bt/followmemsg", 10);
    //follow_msg.person == 1;


    ros::ServiceServer service = nh.advertiseService("followmeservice", followmesrv);
    velPub = nh.advertise<geometry_msgs::Twist>("/agv1/cmd_vel", 20);
    pub = it.advertise("camera/image_processed", 1);

    ros::Rate rate(20.0);
    geometry_msgs::Twist speed;

    int count = 1;
    while (nh.ok()) 
    {
        std_msgs::String msg;
        ros::Publisher velPub;
        //std::stringstream ss;

        if (hasNewPcl && isStop == true || isStart == true) 
        {
            getXYZ(posX, posY);
            hasNewPcl = false;
        }
        ros::spinOnce();
        rate.sleep();
    }
}

please help..

thanks

hi, which sensor did you use !! @Guenther

but do you know the answer /!

hi, but these Fx and Fy can be found from camera parameters (intrinsic), but what is the actual focal length of the came

focal length of Ardrone front camera Hello guys Referring to formula f_x = f * m_x where f_x can be obtained from camer

focal length of Ardrone front camera Hello guys Referring to formula f_x = f * m_x where f_x can be obtained from camer

all you need is to publish your sensor information on a certain topic, subscribe and read data from that sensor topic a

What is your actual requirement ! why you choose hector ! your question is too vast to answer, please narrow down your q

What is your actual requirement ! why you choose hector ! your question is too vast to answer, please narrow down your q

What is your actual requirement ! you you choose hector ! your question is too vast to answer, please narrow down your q

did you try to source your workspace ??? (source devel/setup.bash)

Ardrone camera parameters ! Hello guys I am building an obstacle avoidance node on ROS using tum_simulator. for doing

@gvdhoorn can you please tell , where exactly do i need to do the configuration !!! in the ardrone package created by Mo

I actually agree it doesnt exist, but is there any info regarding how can i replace depth camera plugin from Moveit with

@gvdhoorn thanks !! @PeteBlackerThe3rd i am building an algorithm for obstacle avoidance using single camera (no depth),

@gvdhoorn thanks !! @PeteBlackerThe3rd i am building an algorithm for obstacle avoidance using single camera (no depth),

@gvdhoorn thanks !! @PeteBlackerThe3rd i am building an algorithm for obstacle avoidance using single camera (no depth),

Next thing i would like to do is to add the camera plugin for in Moveit :(

@gvhoorn thanks !! @PeteBlackerThe3rd i am building an algorithm for obstacle avoidance using single camera (no depth),

Mono camera pluggin for MoveIt ! Hello all I am currently working with depth camera (Intel realsense) and able to work

Mono camera pluggin for MoveIt ! Hello all I am currently working with depth camera (Intel realsense) and able to work

Any suggestion guys

Any suggestions guys !!

you can use this : int arrayPosition = y * my_pcl.row_step + x * my_pcl.point_step; int arrayPosZ = arrayPosit

you can use this : int arrayPosition = y * my_pcl.row_step + x * my_pcl.point_step; int arrayPosZ = arrayPosit