Occupant detection apparatus
First Claim
1. An occupant detection apparatus, comprising:
- a photographing device configured to face a vehicle rear seat in a vehicle cabin for taking three-dimensional images; and
a control device that includes;
an information extracting section configured to extract image information corresponding to an upper area of a seat back of said vehicle rear seat from the three-dimensional images taken by said photographing device;
a division processing section configured to divide the information extracted by said information extracting section into regions corresponding to respective rear seat sitting areas for a plurality of rear-seat occupants; and
a derivation processing section configured to derive information about each rear-seat occupant in each rear seat sitting area by comparing extracted image information for each region to a state in which the sitting area is unoccupied.
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Accused Products
Abstract
An occupant detection apparatus can include a photographing device disposed to face to a vehicle rear seat for taking three-dimensional images; an information extracting section which extracts image information corresponding to an upper area of a seat of the rear seat from three-dimensional images taken by the photographing device; a division processing section which divides information extracted by the information extracting section into areas relating to respective sitting areas for occupants sitting in the rear seat; and a derivation processing section which derives, with regard to histogram showing frequency distribution of picture elements relative to distances from the photographing device, a first histogram corresponding to image information divided by the division processing section and also derives a difference histogram by deriving a second histogram from the derived first histogram, and thus derives information about each rear-seat occupant in each sitting area of said vehicle rear seat based on the difference histogram.
29 Citations
11 Claims
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1. An occupant detection apparatus, comprising:
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a photographing device configured to face a vehicle rear seat in a vehicle cabin for taking three-dimensional images; and a control device that includes; an information extracting section configured to extract image information corresponding to an upper area of a seat back of said vehicle rear seat from the three-dimensional images taken by said photographing device; a division processing section configured to divide the information extracted by said information extracting section into regions corresponding to respective rear seat sitting areas for a plurality of rear-seat occupants; and a derivation processing section configured to derive information about each rear-seat occupant in each rear seat sitting area by comparing extracted image information for each region to a state in which the sitting area is unoccupied. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification