Method and system for detecting operator alertness
First Claim
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1. A method for detecting operator alertness of an operator of a vehicle or machine, the method comprising:
- collecting reference position data associated with the operator when the operator is in an alert state, wherein the collecting reference position data comprises creating a three dimensional representation of the operator, or a portion thereof, via stereo vision processing;
determining observed position data of one or more reference points of the three dimensional representation of the operator, or the portion thereof, during a time interval; and
sending an alert signal to alert the operator if a detected angular shift of the one or more reference points of the three dimensional representation exceed a displacement threshold.
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Abstract
A method and system for detecting operator alertness of an operator of a vehicle or machine comprises an image collection system. The image collection system collects reference motion data associated with an operator representation when the operator is in an alert state. An image processor determines observed motion data of one or more points of a three dimensional representation of the operator during a time interval. An analyzer sends an alert signal to alert the operator if a detected angular shift of one or more points of the representation exceed a displacement threshold.
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20 Claims
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1. A method for detecting operator alertness of an operator of a vehicle or machine, the method comprising:
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collecting reference position data associated with the operator when the operator is in an alert state, wherein the collecting reference position data comprises creating a three dimensional representation of the operator, or a portion thereof, via stereo vision processing; determining observed position data of one or more reference points of the three dimensional representation of the operator, or the portion thereof, during a time interval; and sending an alert signal to alert the operator if a detected angular shift of the one or more reference points of the three dimensional representation exceed a displacement threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for detecting operator alertness of an operator of a vehicle or machine, the system comprising:
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a stereo vision image collection system for collecting reference position data associated with the operator when the operator is in an alert state, wherein the reference position data comprises a three dimensional representation of the operator, or a portion thereof, created via stereo vision processing by the stereo vision image collection system; an image processor for determining observed position data of one or more reference points of the three dimensional representation of the operator, or the portion thereof, during a time interval; and an analyzer for sending an alert signal to alert the operator if a detected angular shift of the one or more reference points of the three dimensional representation exceed a displacement threshold. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification