AUTOMATED SYSTEM FOR WORKSPACE, RANGE OF MOTION AND FUNCTIONAL ANALYSIS
First Claim
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1. A system for measuring joint angles, range of motion, reachable space, and other motion characteristics of a person, the system comprising:
- (a) a plurality of markers for attachment to anatomical landmarks on a person;
(b) a camera for capturing three-dimensional position of the markers;
(c) a computer configured for acquiring images from the camera; and
(d) programming executable on the computer configured for marker detection, marker tracking, 3D triangulation and workspace analysis.
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Abstract
A portable and automated system and method for measuring physical function utilizing a contactless and vision-based sensor system for acquiring human movements and methods for the analysis of reachable or functional workspace and range of motion that can be used in tele-medicine applications, such as remote functional assessment and diagnosis. An interactive, shared virtual 3D environment is provided where the patient can follow the movement directions provided by a remote physician while body kinematics are extracted from depth sensing cameras and wireless sensors.
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Citations
20 Claims
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1. A system for measuring joint angles, range of motion, reachable space, and other motion characteristics of a person, the system comprising:
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(a) a plurality of markers for attachment to anatomical landmarks on a person; (b) a camera for capturing three-dimensional position of the markers; (c) a computer configured for acquiring images from the camera; and (d) programming executable on the computer configured for marker detection, marker tracking, 3D triangulation and workspace analysis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for measuring joint angles, range of motion, reachable space, and other motion characteristics of a person, comprising:
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acquiring body part motion kinematics in three dimensions from a camera; measuring bodypart motion trajectories; and calculating reachable workspace envelope. - View Dependent Claims (17)
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18. A method for measuring joint angles, range of motion, reachable space, and other motion characteristics of a person, comprising:
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(a) defining a movement protocol for a body part; (b) capturing body part trajectories of a subject during performance of the movement protocol for the body part; (c) fitting trajectories to a workspace template; (d) transforming fitted trajectories to parameterized coordinates; (e) determining boundaries from coordinates; and (f) formulating reachable workspace envelope. - View Dependent Claims (19, 20)
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Specification