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서지반출
Fisheye Lens for Image Processing Applications
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  • Fisheye Lens for Image Processing Applications
  • Fisheye Lens for Image Processing Applications
저자명
Kweon. Gyeong-Il,Choi. Young-Ho,Laikin. Milton
간행물명
Journal of the Optical Society of Korea
권/호정보
2008년|12권 2호|pp.79-87 (9 pages)
발행정보
한국광학회
파일정보
정기간행물|ENG|
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기타
이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
서지반출

기타언어초록

We have developed a miniature fisheye lens with $190^{circ}$ field of view operating simultaneously in the visible and the near infrared wavelengths. The modulation transfer function characteristic for the visible wavelength is sufficient for a mega-pixel-grade image sensor. The lens also has a fair resolution in the infrared wavelength region. The calibrated $f-{ heta}$ distortion is less than 5%, and the relative illumination is over 90%. In consequence, a sharp wide-angle image can be obtained which is uniform in brightness over the entire range of field angles. The real image heights for the visible and the near infrared wavelengths have been fitted to polynomial functions of incidence angle with sub-pixel accuracies. Combined with the near equidistance projection scheme of the lens, this lens can be advantageously employed in various image-processing applications requiring a wide-angle lens.