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Questions tagged [tracking]

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Issues with Torque Distribution in State-dependent Differential Riccati Equation (SDRE) Controller for 4W SSMR Trajectory Tracking

I am currently working on implementing a State-dependent Differential Riccati Equation Controller (SDRE) to track the trajectory of a 4-wheel skid steer mobile robot (SSMR), where torque serves as the ...
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Fixed multi camera tracking system

Are there any ready made packages for tracking mobile robots in an environment, that utilises fixed position cameras? Something like the VICON system, but native to ros, and using off the shelf ...
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Mysteries of the skeleton trackers

Hey folks, we are currently looking for a skeleton tracker we can use in our ROS project. We found these skeleton_markers -> works only with indigo, not with kinetic and is in “end-of-life” ...
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2 answers
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Packages for real-time tracking (using static stereo cameras) of a small ball/ball-like marker on Drone

Update: By marker I mean something like the ball-like structures as seen in this video. These are being used by expensive motion capture cameras like Optitrack. I do not wish to purchase the Vicon ...
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1 answer
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Using opencv tracking with ROS kinetic

Hey, i want to use the tracking packageof opencv3 contrib in my ROS package. The tracking packagee seems to be installed correctly, i can find the tracker.cpp in my opencv folder and also use other ...
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Implementing Target Tracking on a boat

Hi everyone, I am trying to design and implement a target tracking system on a boat and I am searching to find a suitable sensor to do this. As you know we can not use Kinect outdoors. another option ...
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1 answer
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Quadrocopter Ardrone detection and tracking QRCode

I'm now using a visp_auto_tracker package to detect QR-code for Quadrocopter, but during flying it can not work because of the vibration of Quadrocopter, how can I ...
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1 answer
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Multiple static target position estimate

An aerial vehicle captures images of the ground, using a down facing camera, in order to detect some static ground targets. Using opencv I created a node that detects those targets and converts their ...
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1 answer
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Problem of Robot Tracking A Desired Trajectory

Hello! I am studying the problem of robot tracking a desired trajectory. I have designed my implementation as following description: I have my robot frame, \robot_frame, and desired position frame, \...
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1 answer
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Optical 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 ...
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1 answer
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Easiest way to read QR codes

Hello, I have been trying to use the hector_qrcode_detection_package to read QR codes, but I am having trouble getting it to run. Is this package the easiest way to read QR codes? If not, what other ...
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Does somebody know what the tracking method in people_tracking_filter is?

Hi, all. I am learning this people package by tracking legs. However, because there are no comments in the source code, I am confused about what kind of tracking method this package uses. Is it a two-...
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people detection / tracking (wg_perception) on indigo: easy_markers dependency

It seems that Indigo's Perception package (people detection and tracking) requires dependency: easy_markers. (two other dependencies, ros-indigo-bfl and ros-indigo-costmap-2d exists and are good). ...
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how to run (start) people detection / tracking (wg_perception) on hydro or indigo?

How do I correctly run (start, launch, execute) people tracking (detection) package (wg_perception) on Hydro or Inidigo? What command sequence? I could not find any documentation for it. "...
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1 answer
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MoveIt: get current desired end effector pose

Hello there, I am trying to get access to the current desired end effector's transform output by MoveIt (actually my goal is to compute the tracking error). My feeling is that I need to do the ...
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1 answer
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pi_face_tracker Idle waiting for image input

Hello, after installing pi_face_tracker and running it I don't have any image showed on the screen. I run it on groovy using ...
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1 answer
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Marker long distance tracking with Kinect

I would like to use the Kinect to detect my Turtlebot and have a better odometry. So the Kinect is located between two and five meters from the turtlebot.I tried so many package like ar_pose, ...
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2 answers
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Using Kinect for both navigation and user tracking

Hi there! I'm trying to use one Kinect for two tasks: navigation and user tracking. At first firing navigation simultaneously with user_tracking doesn't work, and I couldn't find any information if ...
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2 answers
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Set RViz camera/view on fuerte

Hi, I'm writing a RViz plugin which allows the user to play rosbags and record them. During playing the rosbags I would like to make it possible to do a tracking shot in the scene. Therefore I have to ...
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1 answer
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cvblob and cvBlobsLib

Is it possible to use cvblob or cvBlobsLib with ROS? If yes, how can I do it? Originally posted by perr0 on ROS Answers with karma: 3 on 2012-08-24 Post score: 0 Original comments Comment by perr0 ...
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1 answer
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pcl_tracking in perception_pcl_electric_unstable gives nodelet error

Hey, I'm trying to implement tracking using pcl::tracking library. Everything builds normaly, but when I try to run nodelet I get an error: ...
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1 answer
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NDI Polaris for orientation measurement

Hi All! I would like to use the a ndi tracking system with ros and found the link: http://www.ros.org/news/2010/09/ndi-polaris-driver-in-kul-ros-pkg.html Does anyone have used that before and can tell ...
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2 answers
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Openni skeleton tracker does not post transforms

Hi, i am trying to use the openni skeleton tracker with kinect. We are starting openni with default parameters and openni_tracker: ...
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1 answer
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Request for approach recommendation for an object identification

Equipment - Windows 7, OpenCV 2.3.1, Visual Studio C++ 2010 Express, and, eventually, any digital video cameras needed, lenses (?) Project - I want to build a machine to identify characteristics of ...
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1 answer
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Kinect ~ Virtual Booth

Is there a way I can crop the tracking area? Like where it only tracks someone skeleton in the specific area, so if someone is in the certain depth and certain X/Y value it will track them. If they ...
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