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2017-04-20 13:45:18 -0500 marked best answer How I can run contour_moments.cpp OpenCV example?

I don’t know how to run the file contour_moments.cpp that’s able in this github link: https://github.com/ros-perception/vis...

I’m working with Indigo and I have installed OpenCV3 following this ROS.org link: http://wiki.ros.org/vision_opencv

when i run the command rosrun opencv_apps contour_moments it only appear a warning and nothing else:

[ WARN] [1450293289.992148166]: Topic 'image' has not been remapped! Typical command-line usage:
    $ rosrun image_rotate image_rotate image:=<image topic> [transport]

which topic should I use?? (I'm using a kinect, and it is working fine)

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2016-01-27 22:39:09 -0500 commented answer Communication between ros and android over usb

Hi!! pleaseee can you tell me how you do that???

2016-01-26 17:18:16 -0500 asked a question image_transport republish compressed

Hi!

I'm having problems trying to decompress a video streaming from my android phone.

This are mi topics

/camera/camera_info
/camera/image/compressed
/rosout
/rosout_agg

This is how I view the input

rosrun image_view image_view image:=/camera/image compressed

..so i run this code

rosrun image_transport republish compressed in:=(in_base_topic) raw out:=(out_base_topic)

What should I put in the brackets??? because im getting this error

terminate called after throwing an instance of 'pluginlib::LibraryLoadException' what(): According to the loaded plugin descriptions the class image_transport/in:/camera/image/compressed_pub with base class type image_transport::PublisherPlugin does not exist. Declared types are image_transport/compressedDepth_pub image_transport/compressed_pub image_transport/raw_pub image_transport/theora_pub Aborted (core dumped)

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2016-01-10 23:18:23 -0500 asked a question Creating a Subscriber in python

Hi!

I’m trying to create a subscriber using python for this package, following the tutorials that ros provide. The package already contains a subscriber in c++. It uses geometry_msgs/Twist.h

I just want to publish in terminal the values from x, y, width and height. However when I run the code I receive nothing.

This is the code that Im using

 #!/usr/bin/env python
 import rospy
 from geometry_msgs.msg import Twist

 def callback(data):
   rospy.loginfo(rospy.get_caller_id() + "I heard %s", data.data)

 def listener():

# In ROS, nodes are uniquely named. If two nodes with the same
# node are launched, the previous one is kicked off. The
# anonymous=True flag means that rospy will choose a unique
# name for our 'listener' node so that multiple listeners can
# run simultaneously.
    rospy.init_node('listener', anonymous=True)

    rospy.Subscriber("commands", Twist, callback)

  # spin() simply keeps python from exiting until this node is stopped
    rospy.spin()

 if __name__ == '__main__':
      listener()

Hope you could give me a hand thanks

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2016-01-10 16:50:27 -0500 commented answer hog_haar_person_detection problem

thanks!!! right away! I change the launch file to this topic /camera/rgb/image_rect_mono, and it is working!! thanks ... but is not detecting as good as openni_tracker, did you know another package for tracking persons???

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2016-01-09 20:47:35 -0500 asked a question hog_haar_person_detection problem

Hi!

I want to execute this package> hog_haar_person_detection

But I don’t know how to complete this instruction from the author:

Launch your camera node and have it publish to the "image_topic" parameter specified in hog_haar_person_detection.launch

Im working with a Kinect and Openni, so Im only executing this command:

roslaunch openni_launch openni.launch

but when run the program It doesn’t publish any window

(thanks Akif)

this is the topic list (rostopic list) after running openni.launch

espe@espe-desktop:~$ rostopic list
/camera/depth/disparity
/camera/depth/image
/camera/depth/image/compressed
/camera/depth/image/compressed/parameter_descriptions
/camera/depth/image/compressed/parameter_updates
/camera/depth/image/compressedDepth
/camera/depth/image/compressedDepth/parameter_descriptions
/camera/depth/image/compressedDepth/parameter_updates
/camera/depth/image/theora
/camera/depth/image/theora/parameter_descriptions
/camera/depth/image/theora/parameter_updates
/camera/depth/image_rect
/camera/depth/image_rect/compressed
/camera/depth/image_rect/compressed/parameter_descriptions
/camera/depth/image_rect/compressed/parameter_updates
/camera/depth/image_rect/compressedDepth
/camera/depth/image_rect/compressedDepth/parameter_descriptions
/camera/depth/image_rect/compressedDepth/parameter_updates
/camera/depth/image_rect/theora
/camera/depth/image_rect/theora/parameter_descriptions
/camera/depth/image_rect/theora/parameter_updates
/camera/depth/points
/camera/depth_registered/disparity
/camera/depth_registered/hw_registered/image_rect
/camera/depth_registered/hw_registered/image_rect/compressed
/camera/depth_registered/hw_registered/image_rect/compressed/parameter_descriptions
/camera/depth_registered/hw_registered/image_rect/compressed/parameter_updates
/camera/depth_registered/hw_registered/image_rect/compressedDepth
/camera/depth_registered/hw_registered/image_rect/compressedDepth/parameter_descriptions
/camera/depth_registered/hw_registered/image_rect/compressedDepth/parameter_updates
/camera/depth_registered/hw_registered/image_rect/theora
/camera/depth_registered/hw_registered/image_rect/theora/parameter_descriptions
/camera/depth_registered/hw_registered/image_rect/theora/parameter_updates
/camera/depth_registered/image
/camera/depth_registered/image/compressed
/camera/depth_registered/image/compressed/parameter_descriptions
/camera/depth_registered/image/compressed/parameter_updates
/camera/depth_registered/image/compressedDepth
/camera/depth_registered/image/compressedDepth/parameter_descriptions
/camera/depth_registered/image/compressedDepth/parameter_updates
/camera/depth_registered/image/theora
/camera/depth_registered/image/theora/parameter_descriptions
/camera/depth_registered/image/theora/parameter_updates
/camera/depth_registered/sw_registered/image_rect/compressedDepth
/camera/depth_registered/sw_registered/image_rect/compressedDepth/parameter_descriptions
/camera/depth_registered/sw_registered/image_rect/compressedDepth/parameter_updates
/camera/ir/image_rect_ir
/camera/ir/image_rect_ir/compressed
/camera/ir/image_rect_ir/compressed/parameter_descriptions
/camera/ir/image_rect_ir/compressed/parameter_updates
/camera/ir/image_rect_ir/compressedDepth
/camera/ir/image_rect_ir/compressedDepth/parameter_descriptions
/camera/ir/image_rect_ir/compressedDepth/parameter_updates
/camera/ir/image_rect_ir/theora
/camera/ir/image_rect_ir/theora/parameter_descriptions
/camera/ir/image_rect_ir/theora/parameter_updates
/camera/rectify_ir/parameter_descriptions
/camera/rectify_ir/parameter_updates
/camera/rectify_mono/parameter_descriptions
/camera/rectify_mono/parameter_updates
/camera/rgb/image_rect_mono
/camera/rgb/image_rect_mono/compressed
/camera/rgb/image_rect_mono/compressed/parameter_descriptions
/camera/rgb/image_rect_mono/compressed/parameter_updates
/camera/rgb/image_rect_mono/compressedDepth
/camera/rgb/image_rect_mono/compressedDepth/parameter_descriptions
/camera/rgb/image_rect_mono/compressedDepth/parameter_updates
/camera/rgb/image_rect_mono/theora
/camera/rgb/image_rect_mono/theora/parameter_descriptions
/camera/rgb/image_rect_mono/theora/parameter_updates
/rosout
/rosout_agg
/tf
2016-01-09 19:19:11 -0500 commented question IR kinect subscribtion

did you solve it???

2016-01-08 16:30:05 -0500 asked a question How to use Openni_Tracker with a moving camera?

Hi, I know that openni tracker doesn’t support a moving camera application. I read that changing the SceneAnalyzer with one that handles a moving camera may work. You know how?

Or maybe someone knows a simple package to track 1 person in a mobile system using a kinect

Thanks!

2016-01-08 12:43:35 -0500 commented question openni_tracker moving kinect loses user

I have the same problem, did you find a solution???

2016-01-08 12:08:44 -0500 asked a question Problem tracking user in openni_tracker

Hi, I’m using openni tracker to follow a person with a mobile robot. (indigo, ubuntu 14, kinect)

I can follow the person forward and backward but, when the robot turns the program openni_tracker always lost the user.

Is some code I can add to the program to solve this? any suggestion?

Thanks in advance

2015-12-22 17:20:52 -0500 commented question openni_tracker listener cannot find 'openni_depth_frame' (groovy)

Did you find a solution??

2015-12-16 23:43:33 -0500 commented answer How can I setup skeleton tracking using a Kinect and ROS Indigo on Ubuntu 14.04?

Gracias!!!!!! Thanks!!!!!!!