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System and Method for Motion Capture

a motion capture and motion technology, applied in image analysis, image enhancement, instruments, etc., can solve the problems of inaccurate detection, markers can interfere with the subject's motion, and current systems do not provide the real-time performance and accuracy demanded by many applications, so as to achieve the effect of faster and efficient motion captur

Inactive Publication Date: 2009-06-11
MADSEN NELS HOWARD +3
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

Enables efficient and accurate real-time motion capture with flexible marker placement, supporting applications like sports evaluation and surveillance by providing instantaneous feedback and diagnostics.

Problems solved by technology

However, current systems do not provide the real-time performance and accuracy demanded by many applications.
One disadvantage of these types of systems is that the limitation on the position and number of the markers leads to accuracy problems.
Another disadvantage is that the markers can interfere with the subject's motion.
Those systems that provide real-time performance typically sacrifice accuracy or limit the type or scope of motion that can be analyzed.

Method used

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Examples

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Embodiment Construction

[0025]The present invention provides a system and method for measuring, animating, and analyzing the motion of humans, animals, and mechanical devices in real-time. Briefly described, the present invention uses cameras to capture the movement of a subject. In one embodiment, markers are placed on the subject, while in another embodiment markers are not used. The measured data obtained from the cameras is compared to a motion model that predicts the possible positions of the subject to determine the captured motion. The motion model uses system variables to address known or detected relationships between the motions of various elements of the model. System variable rules can be configured to restrict the possible positions of the elements. The rules are applied when certain predetermined conditions are satisfied. Because the rules limit the number of possible positions for the model, the motion capture can be performed more quickly and efficiently.

[0026]The model can be used to provi...

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Abstract

A system and method for measuring, animating, and analyzing motion in real-time is provided which operates with or without markers. System variables are used with a motion model to restrict the number of possible locations of a subject. The system variables are based on known or detected relationships between the motions of the various elements of the model. Visual comparisons and quantitative comparisons provide feedback and help a subject learn or improve a motor skill.

Description

RELATED APPLICATION[0001]This application claims priority to U.S. Provisional Application No. 60 / 528,666 entitled “System and Method for Motion Capture,” U.S. Provisional Application No. 60 / 528,880 entitled “System and Method for Measuring, Animating and Analyzing Motion,” and U.S. Provisional Application No. 60 / 528,735 entitled “Camera for Measuring, Animating and Analyzing Motion,” all of which were filed Dec. 11, 2003 and all of which are incorporated herein by reference. This application is a Continuation-In-Part of U.S. application Serial No. (TBD) entitled “Method for Capturing, Measuring and Analyzing Motion” filed Dec. 13, 2004, which is incorporated herein by reference.TECHNICAL FIELD[0002]The present invention is directed in general to providing a system and method for capturing and analyzing motion, and in particular to restricting the number of possible locations of a subject so that motion is captured and analyzed more efficiently, providing motion comparisons, and dete...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G06K9/00
CPCG06T7/2033G06T7/2046G06T2207/10016G06T2207/30204G06T2207/20061G06T2207/20148G06T2207/30196G06T2207/20012G06T7/136G06T7/246G06T7/251
Inventor MADSEN, NELS HOWARDMCLAUGHLIN, THOMAS M.WILMINK, RONNIE J. H.GLOVER, ROBERT MICHAEL
Owner MADSEN NELS HOWARD
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