다중 파장 근적외선 LED조명에 의한 컬러영상 획득 (Color Image Acquired by the Multispectral Near-IR LED Lights)

서지정보

· 발행기관 : 한국조명.전기설비학회
· 수록지 정보 : 조명.전기설비학회논문지 / 30권 / 2호 / 1 ~ 10페이지
· 저자명 : 김아리, 김홍석, 박영식, 박승옥

초록

A system which provides multispectral near-IR and visible gray images of objects is constructed and an algorithm is derived to acquire a natural color image of objects from the gray images. A color image of 24 color patches is obtained by recovering their CIE (International Commission on Illumination) LAB color coordinates from their gray images using the algorithm based on polynomial regression. The system is composed of a custom-designed LED illuminator emitting multispectral near-IR illuminations, fluorescent lamps and a monochrome digital camera. Color reproducibility of the algorithm is estimated in CIELAB color difference . And as a result, if yellow and magenta color patches with around 10 are disregarded, the average is 2.9, and this value is within the acceptability tolerance for quality evaluation for digital color complex image.

영어초록

A system which provides multispectral near-IR and visible gray images of objects is constructed and an algorithm is derived to acquire a natural color image of objects from the gray images. A color image of 24 color patches is obtained by recovering their CIE (International Commission on Illumination) LAB color coordinates from their gray images using the algorithm based on polynomial regression. The system is composed of a custom-designed LED illuminator emitting multispectral near-IR illuminations, fluorescent lamps and a monochrome digital camera. Color reproducibility of the algorithm is estimated in CIELAB color difference . And as a result, if yellow and magenta color patches with around 10 are disregarded, the average is 2.9, and this value is within the acceptability tolerance for quality evaluation for digital color complex image.

참고자료

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