DOI QR코드

DOI QR Code

홀로그램 정보를 이용한 깊이위치 추출과 3차원 영상인식

Depth location extraction and three-dimensional image recognition by use of holographic information of an object

  • 발행 : 2003.02.01

초록

물체의 홀로그램은 물체의 깊이위치에 대한 정보뿐 아니라 물체의 깊이분포에 대한 정보도 가지고 있다. 그러나 두 가지 정보는 프린지 패턴(fringe pattern)의 형태로 서로 썩여있어 홀로그램으로부터 물체의 깊이위치에 대한 정보를 분리해내기 어렵다. 본 논문에서는 물체의 깊이 및 위치분포에 대한 정보를 갖는 단일 결띠 홀로그램(single-sideband hologram)으로부터 물체의 깊이위치에 대한 정보만을 가우시안 저-대역 필터를 이용해 추출해내고 그를 수치적 방법으로 해석해 물체의 깊이위치를 얻어내는 알고리즘을 제안한다. 또한 추출된 깊이위치를 이용하여 물체의 깊이위치에서 홀로그램을 복원해낸다.

The hologram of an object contains the information of the object's depth distribution as well as the depth location of the object. However these pieces of information are blended together as a form of fringe pattern. This makes it hard to extract the depth location of the object directly from the hologram. In this paper, I propose a numerical method which separates the depth location information from the single-sideband hologram by gaussian low-pass filtering. The depth location of the object is extracted by numerical analysis of the filtered hologram. The hologram at the object's depth location is recovered by the extracted depth location.

키워드

참고문헌

  1. IEEE Trans. Info. Theory v.IT-10 Signal detection by complex spatial filtering A. B. VanderLugt
  2. Opt. Eng. v.29 Autonomous real-time object tracking with an adaptive joint transform correlator E. C. Tam;F. T. S. Yu;D. A. Gregory;R. D. Juday https://doi.org/10.1117/12.55602
  3. Appl. Opt. v.5 A technique for optically convolving two functions C. S. Weaver;J. W. Goodman https://doi.org/10.1364/AO.5.001248
  4. Optical pattern Recognition using Holographic Techniques Neil Collings
  5. Image recognition by holography G. I. Vasilenko;L. M. Tsibul'kin
  6. Appl. Opt. v.38 Optical image recognition of three-dimensional objects T.-C. Poon;T.G. Kim https://doi.org/10.1364/AO.38.000370
  7. Opt. Eng. v.38 Extraction of 3-D location of matched 3-D object using power fringe-adjusted filtering and Wigner analysis T.G. Kim;T.-C. Poon https://doi.org/10.1117/1.602326
  8. Optical Memory and Neural Networks v.8 no.3 Three-dimensional image matching using two-dimensional optical heterodyne scanning T.G. Kim;T.-C. Poon;M. H. Wu;Kazunori Shinoda;Yoshiji Suzuki
  9. J. Opt. Soc. Am. A v.17 Three-dimensional matching using phase-only holographic information and Wigner Distribution T.G. Kim;T.-C. Poon https://doi.org/10.1364/JOSAA.17.002520
  10. J. Opt. Soc. Am. A. v.2 Scanning Holography and Two-Dimensional Image Processing by Acousto-Optic Two-Pupil Synthesis T.-C. Poon
  11. Opt. Eng. v.41 no.6 Depth detection and image recovery in remote sensing by optical scanning holography T.G. Kim;T.-C. Poon;G. Indebetouw https://doi.org/10.1117/1.1476939
  12. Contemporary Optical Image Processing with MATLAB T.-C. Poon;P.P. Baneriee
  13. Opt. Eng. v.37 Distortion-invariant fractional power fringe adjusted joint transform correlation X. W. Chen;Mohammad A. Karim;M. S. Alam https://doi.org/10.1117/1.601840
  14. Appl. Opt. v.36 Distortion-invariant fringe-adjusted joint transform correlation M. S. Alam;X.-W. Chen;M. A. Karim https://doi.org/10.1364/AO.36.007422