Occupant condition determining apparatus
First Claim
1. An apparatus for determining existential conditions of objects on a certain detecting region, said apparatus comprising:
- temperature distribution detecting means for obtaining a thermal image including a plurality of elements each representing temperature data by detecting the temperature distribution on said detecting region;
element classifying means for classifying said plurality of elements in said thermal image into at least two groups, all elements belonging to one of said groups being in a certain temperature range, said temperature range of said one group being distinct from a temperature range of another one of said groups;
group selecting means for selecting at least one group of a relatively higher temperature range in said thermal image from said at least two groups;
element selecting means for selecting, among elements included in said at least one group selected by said group selecting means, elements representing temperature data indicative of local temperature peaks in said thermal image; and
output means for outputting the number of said elements selected by said element selecting means as the number of objects on said detecting region.
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Abstract
The apparatus of the present invention for determining existential conditions of objects on a certain detecting region, includes: a temperature distribution detecting section for obtaining a thermal image including a plurality of elements each having temperature data by detecting the temperature distribution on the detecting region; an element classifying section for classifying the plurality of elements in the thermal image into at least two groups, all elements belonging to one of the groups being in a certain temperature range, the temperature range of the one group being distinct from a temperature range of another one of the groups; a group selecting section for selecting at least one group of a relatively higher temperature range in the thermal image from the at least two groups; an element selecting section for selecting, among elements included in the selected group, elements having temperature data indicative of local temperature peaks in the thermal image; and an output section for outputting the number of the selected elements by the element selecting means as the number of objects on the detecting region.
55 Citations
17 Claims
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1. An apparatus for determining existential conditions of objects on a certain detecting region, said apparatus comprising:
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temperature distribution detecting means for obtaining a thermal image including a plurality of elements each representing temperature data by detecting the temperature distribution on said detecting region; element classifying means for classifying said plurality of elements in said thermal image into at least two groups, all elements belonging to one of said groups being in a certain temperature range, said temperature range of said one group being distinct from a temperature range of another one of said groups; group selecting means for selecting at least one group of a relatively higher temperature range in said thermal image from said at least two groups; element selecting means for selecting, among elements included in said at least one group selected by said group selecting means, elements representing temperature data indicative of local temperature peaks in said thermal image; and output means for outputting the number of said elements selected by said element selecting means as the number of objects on said detecting region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification