Device and method for acquiring image
AssigneeElectronics and Telecommunications Research Institute
InventorsDong Woo LEE, Hyun Tae JEONG, Yong-Ki SON, IL YEON CHO
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Abstract
An image acquisition device is provided. The image acquisition device includes: a pattern generator that generates a plurality of incident light patterns using a plurality of light sources and that projects the generated plurality of incident light patterns to a target object; a pattern acquisition unit that acquires a pattern image that is formed in the target object by the plurality of incident light patterns; and an operation unit that generates a three-dimensional image of the target object using the pattern image.
Claims20
An image acquisition device, comprising:
- a pattern generator that generates a plurality of incident light patterns using a plurality of light sources and that projects the generated plurality of incident light patterns to a target object;
- a pattern acquisition unit that acquires a pattern image that is formed in the target object by the plurality of incident light patterns;
- and
- an operation unit that generates a three-dimensional image of the target object using the pattern image.
A method of acquiring an image of an image acquisition device that acquires a three-dimensional image of a target object, the method comprising:
- generating a first incident light pattern using first light of a first frequency band in which a first light source emits light;
- generating a second incident light pattern different from the first incident light pattern using second light of a second frequency band in which a second light source emits light;
- projecting the first incident light pattern and the second incident light pattern to the target object;
- acquiring a pattern image that is formed in the target object by the first incident light pattern and the second incident light pattern;
- and
- generating a three-dimensional image of the target object using the pattern image.
A pattern generator that forms an image acquisition device that acquires a three-dimensional image of a target object and that generates an incident light pattern that is projected to the target object, the pattern generator comprising:
- a first lens that concentrates first light of a first frequency band from a first light source;
- a second lens that concentrates second light of a second frequency band from a second light source;
- a third lens that concentrates third light of a third frequency band from a third light source;
- an optical diffraction unit that generates a first incident light pattern by diffracting first light that is concentrated by the first lens, that generates a second incident light pattern by diffracting second light that is concentrated by the second lens, and that generates a third incident light pattern by diffracting third light that is concentrated by the third lens;
- a first dichroic mirror that reflects only the first incident light pattern;
- and
- a second dichroic mirror that reflects only the second incident light pattern,
- wherein the second incident light pattern is transmitted through the first dichroic mirror, the third incident light pattern is transmitted through the first and second dichroic mirrors, and
- the first to third incident light patterns are different patterns.
Dependencies are inferred from the claim text.