Detection of the change of position of a vehicle occupant in an image sequence
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Accused Products
Abstract
A method and a device for detecting an actual position of a person within a specifiable area are provided, which make it possible to improve the reliability, particularly in dynamic situations. The specifiable area is monitored using an image-recording device, and the recorded images are processed by an evaluation device. If a person is detected in the monitored area, at least one significant feature of the person is determined, the further analysis then being limited to this at least one significant feature, and if there is a relative change in position of this at least one significant feature beyond a specifiable minimum, an event signal is generated.
17 Citations
32 Claims
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1-16. -16 (canceled).
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17. A method for determining an actual position of a person within at least one specified area, comprising:
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monitoring the specified area using an image-recording device;
processing recorded images by an evaluation device, wherein, if a person is detected in the specified area, at least one significant feature of the person is determined;
determining a present actual position of the at least one significant feature based on a previous known position of the at least one significant feature; and
performing further analysis of recorded images, wherein the further analysis is limited to the at least one significant feature, and wherein recording of images is limited to at least one image area corresponding to the present position of the at least one significant feature of the person, and wherein, if there is a relative change in position of the at least one significant feature beyond a specified minimum threshold, an event signal is generated. - View Dependent Claims (18, 19, 20, 21, 22, 23, 30, 31, 32)
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24. A device for determining an actual position of a person within at least one specified area, comprising:
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an image-recording device for recording the specified area; and
an evaluation device for processing recorded images, wherein the evaluation device determines at least one significant feature of a detected person, and once the at least one significant feature has been determined, recording of images is limited to at least one image area corresponding to a present actual position of the at least one significant feature, and wherein the evaluation device detects a relative change in position of the at least one significant feature, and wherein the evaluation device determines the present actual position of the at least one significant feature based on a previous known position of the at least one significant feature. - View Dependent Claims (25, 26, 27, 28, 29)
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Specification