Surveillance system and method for predicting patient falls using motion feature patterns
DCFirst Claim
1. A surveillance system for detecting a fall risk condition, the system comprising:
- a surveillance camera configured to generate a plurality of frames showing an area in which a patient at risk of falling is being monitored; and
a computer system comprising memory and logic circuitry configured to;
store motion feature patterns that are extracted from video recordings, the motion feature patterns are representative of motion associated with real alarm cases and false-alarm cases of fall events;
receive a fall alert from a classifier, the fall alert associated with the plurality of frames generated by the surveillance camera;
determine motion features of one or more frames from the plurality of frames that correspond to the fall alert;
compare the motion features of the one or more frames with the motion feature patterns; and
determine whether to confirm the fall alert based on the comparison.
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Abstract
A method and system for detecting a fall risk condition, the system comprising a surveillance camera configured to generate a plurality of frames showing an area in which a patient at risk of falling is being monitored, and a computer system comprising memory and logic circuitry configured to store motion feature patterns that are extracted from video recordings, the motion feature patterns are representative of motion associated with real alarm cases and false-alarm cases of fall events, receive a fall alert from a classifier, determine motion features of one or more frames from the plurality of frames that correspond to the fall alert; compare the motion features of the one or more frames with the motion feature patterns, and determine whether to confirm the fall alert based on the comparison.
49 Citations
20 Claims
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1. A surveillance system for detecting a fall risk condition, the system comprising:
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a surveillance camera configured to generate a plurality of frames showing an area in which a patient at risk of falling is being monitored; and a computer system comprising memory and logic circuitry configured to; store motion feature patterns that are extracted from video recordings, the motion feature patterns are representative of motion associated with real alarm cases and false-alarm cases of fall events; receive a fall alert from a classifier, the fall alert associated with the plurality of frames generated by the surveillance camera; determine motion features of one or more frames from the plurality of frames that correspond to the fall alert; compare the motion features of the one or more frames with the motion feature patterns; and determine whether to confirm the fall alert based on the comparison. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for predicting a condition of elevated risk of a fall with a computer system comprising:
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storing motion feature patterns that are extracted from video recordings, the motion feature patterns are representative of motion associated with real alarm cases and false-alarm cases of fall events; receiving a fall alert from a classifier, the fall alert associated with the plurality of frames generated by the surveillance camera; determining motion features of one or more frames from the plurality of frames that correspond to the fall alert; comparing the motion features of the one or more frames with the motion feature patterns; and determining whether to confirm the fall alert based on the comparison. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification