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Marker-less Tracking of Humans and Articulated Bodies using Parallel Processing Hardware


Stanford Reference:

09-319


Abstract


A team of researchers from the Stanford Artificial Intelligence Laboratory have developed a portfolio of patented innovations that harness depth sensing technology to analyze human motion for touch-free control of devices and motion capture. This system for tracking articulated bodies includes software technology for real-time tracking of human motion using a range camera based on fast parallel GPU processing of sensor data and analysis of human posture.

Downloadable Video Demonstration

This video excerpt shows a “tennis swing” test sequence where the right arm was fully occluded and becomes visible again. This includes (a) the recorded depth images; (b) the alternative representation as a point cloud including the body part detections in 3D; (c) the fitted model including the recorded ground truth marker locations in 3D; and (d) the resulting pixel likelihood. The black lines in the lower left plot show the error vector and the green lines in the lower right plot show the association hypotheses in the evidence propagation step of the algorithm

Additional Technologies in this Portfolio:
"Marker-less Motion Capture with Time-of-Flight Sensors on Parallel Processing Hardware" (Stanford Docket S09-343)
"Detecting and Classifying Body Parts and Gestures in Range Images" (Stanford Docket S09-369)
"Ergonomic Touch-Free User Interfaces" (Stanford Docket S10-147)
"Touch–Free Control of Devices" (Stanford Docket S10-148)

Applications


  • Human-machine interface for touch free interactions with devices such as:
    • computers - web-browsing, data entry
    • television - gesture-based remote controls
    • smart phones
    • gaming consoles
  • Motion capture for:
    • animation
    • task demonstration and teaching for industrial and robotic applications
    • rehabilitation and athletics
  • Surveillance and security

Advantages


  • No augmentation of the scene is required (e.g. markers, wearable sensors or handheld devices)
  • High precision, even under real-time constraints

Publications



Related Web Links



Innovators & Portfolio



Date Released

 8/27/2012
 

Licensing Contact


Imelda Oropeza, Licensing Associate
650-725-9039 (Business)
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[-] Map/Timeline

93-192 Total Access System
97-066 Polysurf: An Interactive Software System for Fitting a Network of Nurbs Surfaces and Associated Displacement Maps to Dense Polygonal (3-Dimensional) Meshes
02-125 Target Tracking System

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Related Keywords


computer interface   computer: virtual reality   3d graphics   3d animation   controller   depth sensing   digital media   electronic game   electronic media   entertainment   gaming   gesture recognition   home entertainment   human-machine interface   image processing   media   motion capture   Motion detection   motion sensors   multimedia   remote control   robotics   video game   Virtual worlds   virtualization   
 

   

  

Also of Interest...
93-192 Total Access System
97-066 Polysurf: An Interactive Software System for Fitting a Network of Nurbs Surfaces and Associated Displacement Maps to Dense Polygonal (3-Dimensional) Meshes
02-125 Target Tracking System

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S09-319 Marker-less Tracking of Humans and Articulated Bodies using Parallel Processing Hardware