Object-detecting device and method of extracting operation object
First Claim
1. An object-detecting device for detecting an operation object, which is used for operating an operating apparatus, the device comprising:
- an imaging portion for imaging the operation object; and
an image processor for extracting the operation object, whereinthe operation object has a first face, on which outside light falls from outside into the operating apparatus, and a second face opposite to the first face, andthe imaging portion images the second face of the operation object.
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Accused Products
Abstract
An object-detecting device detects an operation object for operating an operating apparatus. The object-detecting device includes an imaging portion for imaging the operation object and an image processor for extracting the operation object. The operation object has a first face, on which outside light falls from outside into the operating apparatus, and a second face opposite to the first face. The imaging portion images the second face of the operation object. The object-detecting device can stably detect the operation object, even when an illuminance variation of outside light is large.
61 Citations
18 Claims
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1. An object-detecting device for detecting an operation object, which is used for operating an operating apparatus, the device comprising:
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an imaging portion for imaging the operation object; and an image processor for extracting the operation object, wherein the operation object has a first face, on which outside light falls from outside into the operating apparatus, and a second face opposite to the first face, and the imaging portion images the second face of the operation object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of extracting an operation object for operating an apparatus, wherein the operation object has a first face, on which outside light falls, and a second face opposite to the first face, the method comprising:
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imaging a first image of the operation object, when a controller turns on a lighting portion to light the second face of the operation object; imaging a second image of the operation object, when the controller turns off the lighting portion; and comparing the first image and the second image so as to extract the operation object. - View Dependent Claims (17, 18)
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Specification