Image reading device, image forming apparatus, and image reading method
OwnerKazuki ISHIKURA, Ayumu HASHIMOTOinventors
Life of this patent
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Abstract
An image reading device includes: a visible light source to emit visible light to an object; an invisible light source to emit invisible light to the object; a first imaging element to receive light reflected from the object to capture a visible image; a second imaging element to receive light reflected from the object to capture an invisible image; and circuitry to remove a visible component included in the invisible image captured by the second imaging element using the visible image captured by the first imaging element.
Claims10
An image reading device comprising:
- a visible light source to emit visible light to an object;
- an invisible light source to emit invisible light to the object;
- a first imaging element to receive light reflected from the object to capture a visible image;
- a second imaging element to receive light reflected from the object to capture an invisible image;
- and
- circuitry configured to remove a visible component included in the invisible image captured by the second imaging element using the visible image captured by the first imaging element.
An image reading method performed by an image reading device, the method comprising:
- with a visible light source of the image reading device, emitting visible light to an object;
- with an invisible light source of the image reading device, emitting invisible light to the object;
- with a first imaging element of the image reading device, receiving light reflected from the object to capture a visible image;
- with a second imaging element of the image reading device, receiving light reflected from the object to capture an invisible image;
- and
- removing a visible component included in the invisible image captured with the second imaging element using the visible image captured with the first imaging element.
Dependencies are inferred from the claim text.