Falling detection method and electronic system using the same
AssigneeWistron Corporation
InventorsYu-Yen Chen, Yi-Sheng Chao
Life of this patent
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Abstract
A falling detection method and an electronic system using the same are provided. The falling detection method includes: obtaining a video stream, and performing recognition on a person in an image of the video stream to obtain at least one human body feature; calculating based on the human body feature to obtain at least one falling related feature; calculating at least one movement trend in a plurality of directions of the person in the video stream by using an optical flow algorithm; inputting the falling related feature and the movement trend to a falling classifier, such that the falling classifier generates an output result indicating whether a falling event happens to the person; and sending an alarm according to the output result.
Claims20
A falling detection method, comprising:
- obtaining a video stream;
- performing recognition on a person in at least one image of the video stream to obtain at least one human body feature;
- calculating based on the human body feature to obtain at least one falling related feature;
- calculating at least one movement trend of the person in a plurality of directions in the video stream by using an optical flow algorithm;
- inputting the at least one falling related feature and the at least one movement trend to a falling classifier, such that the falling classifier to generate an output result indicating whether a falling event happens to the person;
- and
- sending an alarm according to the output result.
An electronic system, comprising:
- an image capturing device, configured to obtain a video stream;
- a processor, coupled to the image capturing device, and configured to:
- perform recognition on a person in at least one image of the video stream to obtain at least one human body feature;
- calculate based on the at least one human body feature to obtain at least one falling related feature;
- calculate at least one movement trend of the person in a plurality of directions in the video stream by using an optical flow algorithm;
- and
- input the at least one falling related feature and the at least one movement trend to a falling classifier, such that the falling classifier generates an output result indicating whether a falling event happens to the person;
- and
- a warning device, coupled to the processor, and sending an alarm according to the output result.
An electronic system, comprising:
- an image capturing device, configured to obtain a video stream;
- an object tracking module, configured to perform recognition on a person in at least one image of the video stream to obtain at least one human body feature, and calculate based on the at least one human body feature to obtain at least one falling related feature;
- an optical flow determination module, configured to calculate at least one movement trend of the person in a plurality of directions in the video stream;
- and
- a falling classifier, receiving the at least one falling related feature and the at least one movement trend, and outputting an output result indicating whether a falling event happens to the person.
Dependencies are inferred from the claim text.