Optical detection device
AssigneeKonica Minolta, Inc.
InventorTakashi MORIMOTO
Life of this patent
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Abstract
In order to accurately detect a subject to be detected and reduce manufacturing or maintenance costs, this optical detection device determines whether there is a subject to be detected by determining a correction coefficient for correcting data from an image captured by a capturing sensor through a filter unit with an image data estimation value from when an image is captured without the filter unit, and comparing an image data estimation value obtained through correction using the correction coefficient from the image data with captured data obtained by capturing a detection area in a state where the filter unit is not in front of the capturing sensor.
Claims21
1-6. (Canceled)
An optical detection device, comprising:
- an uncooled image sensor that has a plurality of pixels that convert light from a detection region into electricity;
- a filter that eliminates light in a wavelength range that is influenced by the detection target object;
- a filter driver that places or removes the filter in front of or from in front of the image sensor;
- and
- a processor that detects presence or absence of the detection target by processing data from the image sensor,
- wherein
- the processor determines a correction coefficient by which image data that is obtained by shooting through the filter is corrected to image data estimated values that are estimated to be obtained by shooting without the filter, and
- the processor determines the presence or absence of the detection target object by comparing the image data estimated values that are obtained by correction using the correction coefficient from the image data with shot data that is obtained by shooting the detection region with the filter removed from in front of the image sensor.
Dependencies are inferred from the claim text.