Invention Grant
- Patent Title: Markerless motion capture system
- Patent Title (中): 无标记运动捕捉系统
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Application No.: US11716130Application Date: 2007-03-09
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Publication No.: US07804998B2Publication Date: 2010-09-28
- Inventor: Lars Mündermann , Stefano Corazza , Thomas P. Andriacchi
- Applicant: Lars Mündermann , Stefano Corazza , Thomas P. Andriacchi
- Applicant Address: US CA Palo Alto
- Assignee: The Board of Trustees of the Leland Stanford Junior University
- Current Assignee: The Board of Trustees of the Leland Stanford Junior University
- Current Assignee Address: US CA Palo Alto
- Agency: Lumen Patent Firm
- Main IPC: G06K9/00
- IPC: G06K9/00

Abstract:
A markerless motion capture system is provided for measurements accurate enough for biomechanical, clinical, sport, entertainment, animation, game and movie, design, ergonomics, surveillance applications. The system has multiple cameras distributed around a viewing volume. The cameras allow for the creation of three-dimensional mesh representations of an object dynamically moving within the viewing volume. A model of the object that incorporates specific morphological and kinematic model information (including soft joint constraints) is then matched to the captured three-dimensional mesh representations. The matching routine aims to embed the model into each of the three-dimensional representations using (i) iterative closest point or simulated annealing algorithms and (ii) using soft joint constraints. This unique combination of routines offers a simple, time-efficient, accurate and thus more meaningful assessment of movements. The system further offers feasibility of accurately and precisely measuring three-dimensional kinematics of the dynamically moving object or human.
Public/Granted literature
- US20080031512A1 Markerless motion capture system Public/Granted day:2008-02-07
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