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US 2010/0063676 A1Published application
Vehicle-installation person detection apparatus and crash absorption apparatus incorporating the person detection apparatus
AssigneeDenso Corporation
InventorYosuke Ito
Life of this patent
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Abstract
A person detection apparatus controls activation of a crash absorption device such as an external airbag of a vehicle, whereby when the vehicle is about to collide with a detected object, a judgement is made as to whether the object is a person. If the object is judged to be other than a person, activation of the crash absorption device is inhibited. It is rendered easier or more difficult for an object to be judged as being a person, in accordance with whether or not the vehicle is operating in an environment with a relatively high probability that persons will be present.
Claims18
A person detection apparatus comprising
- target object parameter detection means configured to detect at least one target object parameter relating to an external appearance of a target object,
- person probability computation means configured to calculate a person probability as a numeric value, said person probability expressing a degree of matching between said target object parameter and a predetermined person parameter relating to a typical external appearance of a person,
- environment detection means configured to detect at least one environmental condition relating to an environment in which said target object parameter is detected, at a time of said detection of the target object parameter, and
- person judgement means configured to compare said person probability with a threshold value and to judge that said target object is a person when said person probability exceeds said threshold value;
- wherein said person detection apparatus comprises compensation means configured to adjust a predetermined one of said threshold value and said person probability in accordance with said detected environmental condition, and wherein said adjustment is executed such as to render it increasingly easier for said target object to be judged to be a person, in accordance with increasing probability that persons will be present in said environment, as indicated by said environmental condition.
2 more elements
Dependencies are inferred from the claim text.