Problem with amcl_demo.launch and depth data from camera/depth/image
Hi! I'm having some troubles using the amcl_demo.launch, because i need to get the depth information from the **camera/depth/image** which the openni.launch initializes (and is initialized by...
View Articleros nao publish bottom camera images
Hello everyone I am wanting to watch the image projected by NAO from its bottom camera. with Rqt I am changing the camera manually from TOP to Bottom (Since currently I don't know how to do that in...
View Articleread the sensor data of gazebo - sdf model in ROS
As I understand with plugin and urdf and xacro we can publish the sensor data (lase_ camera_ contact ...) in rostopic , using "urdf_spawner" in gazebo_ros package. I am wondering if there is way to...
View ArticleAxis Camera. Raw Image
I am working with an axis camera. It provides the compressed image in jpg format (stream video). However, I need the raw image to calibrate the camera. As camera does not provide the raw image, I use...
View ArticleHow to define the depth parameters for camera_info ?
Hi, I'm working with visual Odometry and in the code of the algorithm, they want me put the depth parameters i.e the intrasec camera of the depth (camera/depth/camera_info) The problem is the...
View ArticleWho knows the pixel size of the image(640*480) of kinect RGB camera
I know other cameras' parameters, which are often given. For example, CCD's is 80 pixel/mm. I've asked others, and maybe the pixel size should be calculated. If you've ever done this or knew something,...
View Articleopenni_launch failed when subscribing to camera/depth/points
I am using ROS Groovy Precise 12.04. I have kinect XBox 360. I use to get depth data when i call it in Rviz before, but today even i changed nothing it stops running. Below that is what i got after...
View ArticleOptical flow with bottom camera on aerial vehicle
I'm interested in obtaining an estimation of the linear velocity of the vehicle using optical flow, so which are the best packages for optical flow using the bottom camera of an aerial vehicle? (the...
View ArticleCamera calibration many cameras
hello I want to use the package camera calibration for intrinsic calibration for more cameras in the same time. i use the procedure for each camera separately. its working good but i want to use the...
View ArticleBest stereo camera for beginners
Hello, I'm new to ROS, I have great ambitions and little budget ^_^, so I'm looking for some cheap hardware that would offer me results decent enough to continue my experimentation. I've been looking...
View ArticleAdding a camera to a model in Gazebo? (Beginner)
Hello! I am very new to using things like Gazebo and ROS. I was wondering about how one might take a model from Gazebo (like turtlebot or quadrotor) and attach a camera to it, and see the feed? My...
View ArticleHow to get an mjpeg stream with 30 fps?
Hi, I bought two webcam modules and they are said to be able to deliver 1280x720 with 30 frames per second with mjpg compression. When I now set it up with libuvc_camera node: I always get: >...
View ArticleWhat is the package in Indigo supports webcam in laptop?
Packages available for webcams are only for usb webcam and few for laptop cams but i cant find any Package for Indigo rather than Hydro, so what is the Indigo package supports laptop webcams
View ArticleXacro convert property to integer
I'm using ROS Indigo and I want to create a robot with parametrizable camera resolution using just one urdf.xacro file. The camera width gets passed into the myrobot.urdf.xacro file via the prefix...
View ArticleWhat USB camera can be set for all manual operation?
I'd like to be able to manually control as much as possible on a camera - exposure, brightness, gain, white balance, etc. With the ODroid camera I have, the controls I see in v4l2 are limited and it...
View ArticleRosdep cannot find all required resources
I use ubuntu 12.04 and fuerte. I install lsd_slam and its readme says that > Using `live_slam` If you want to directly use a camera. rosrun lsd_slam_core live_slam /image:= /camera_info:= When...
View ArticleError while interfacing my webcam to ROS
I installed **ros-indigo-usb-cam** package and executed the code `rosrun usb_cam usb_cam_node ~video_device "/dev/video0"` which resulted in following error **[ERROR] [1435589390.503107344]: outbuf...
View ArticleHow can I use webcam on fuerte?
I use ubuntu 12.04 and fuerte. I want to get frame from webcam. I try to install camera driver. I plan to use **ucv_cam** driver but its documentation says that > This package is no longer actively...
View ArticleTurtlebot simulator laser scan not working.
Hi everyone, I'm learning ROS and I'm trying to follow this tutorial link: http://wiki.ros.org/turtlebot_simulator/Tutorials/hydro/Explore%20the%20Gazebo%20world, when I put several objects in the...
View ArticleHow to get usb camera frame?
I use ubuntu 14.04 and indigo. I install usb_cam. My launch file is under `home/rosbuild_ws/package_dir`. The content of it is below : I run below command on terminal and get errors :...
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