DOI QR코드

DOI QR Code

Optical implementation of 3D image correlator using integral imaging technique

집적영상 기술을 이용한 3D 영상 상관기의 광학적 구현

  • 박영일 (광운대학교 전자공학과 3DRC) ;
  • 김석태 (부경대학교 정보통신공학과) ;
  • 김은수 (광운대학교 전자공학과 3DRC)
  • Published : 2009.08.31

Abstract

In this paper, we propose an implementation method of 3D image correlator using integral imaging technique. In the proposed method, elemental images of the reference and signal 3D objects are recorded by lenslet arrays and then reference and signal output plane images with high resolution are optically reconstructed on the output plane by displaying these elemental images into a display panel. Through cross-correlations between the reconstructed reference and the single plane images, 3D object recognition is performed. The proposed method can provide a precise 3D object recognition by using the high-resolution output plane images compared with the previous methods and implement all-optical structure for real-time 3D object recognition system. To show the feasibility of the proposed method, optical experiments are carried out and the results are presented.

본 논문에서는 집적영상기술을 이용한 광학적 3D 영상 상관기의 구현 방법을 제안한다. 제안하는 방법에서는 참조 3D 물체와 신호 3D 물체의 요소 영상들이 렌즈 배열을 통하여 얻어지고 이 요소 영상들을 디스플레이 패널에 다시 표시하여 출력 평면에서 광학적으로 고해상도 출력 평면 영상을 얻는다. 이렇게 얻어진 참조 및 신호 물체의 출력 평면 영상에 대하여 상호 상관관계를 수행하여 3D 물체를 인식한다. 제안한 방법은 기존 방법과 비교하여 높은 해상도의 출력 평면 영상을 사용하기 때문에 정확한 3D 물체 인식이 가능하며, 실시간 3D 물체 인식 시스템을 광학적으로 구현할 수 있다. 제안하는 방법의 유용함을 보이기 위하여 광학 실험을 수행하고 그 결과를 보고한다.

Keywords

References

  1. G. Lippmann, "La photographic integrale," C.R. Acad. Sci. vol. 146, pp. 446-451, 1908
  2. F. Okano, H. Hoshino, J. Arai, and I. Yuyama, 'Three-dimensional video system based on integral photography,' Opt. Eng. vol. 38, pp. 1072-1077, 1999 https://doi.org/10.1117/1.602152
  3. J.-S. Jang and B. Javidi, "Improved viewing resolution of three-dimensional integral imaging by use of nonstationary micro-optics," Opt. Lett. vol. 27, pp. 324-326, 2002 https://doi.org/10.1364/OL.27.000324
  4. B. Lee, S. Y. Jung, S.-W. Min, and J.-H. Park, 'Three-dimensional display by use of integral photography with dynamically variable image planes,' Opt. Lett. vol. 26, pp. 1481-1482, 2001 https://doi.org/10.1364/OL.26.001481
  5. M. Mart$\acute{i}$nez-Corral, B. Javidi, R. Mart$\acute{i}$nez-Cuenca, and G. Saavedra, "Multifacet structure of observed reconstructed integral images," J. Opt. Soc. Am. A vol. 22, pp. 597-603, 2005 https://doi.org/10.1364/JOSAA.22.000597
  6. D. -H. Shin, B. Lee, and E. -S. Kim, "Multidirectional curved integral imaging with large depth by additional use of a large-aperture lens," Appl. Opt. vol. 45, pp. 7375-7381, 2006 https://doi.org/10.1364/AO.45.007375
  7. O. Matoba, E. Tajahuerce, and B. Javidi, 'Real-time three-dimensional object recognition with multiple perspectives imaging,' Appl. Opt. vol. 40, pp. 3318-3325, 2001 https://doi.org/10.1364/AO.40.003318
  8. Y. Frauel and B. Javidi, "Digital three-dimensional image correlation by use of computer-reconstructed integral imaging," Appl. Opt. vol. 41, 2002, pp. 5488-5496 https://doi.org/10.1364/AO.41.005488
  9. J. -H. Park, J. Kim, and B. Lee, "Three-dimensional optical correlator using a sub-image array," Opt. Express vol. 13, pp. 5116-5126, 2005 https://doi.org/10.1364/OPEX.13.005116
  10. J.-S. Park, D.-C. Hwang, D.-H. Shin and E.-S. Kim, "Resolution-enhanced three-dimensional image correlator using computationally reconstructed integral images," Opt. Commun. Vol. 26, pp. 72-79, 2007 https://doi.org/10.1016/0030-4018(78)90344-9
  11. S.-H. Hong, J.-S. Jang, and B. Javidi, "Three- dimensional volumetric object reconstruction using computational integral imaging," Opt. Express, vol. 12, pp. 483-491, 2004 https://doi.org/10.1364/OPEX.12.000483
  12. S.-H. Hong and B. Javidi, 'Improved resolution 3D object reconstruction using computational integral imaging with time multiplexing,' Opt. Express vol. 12, pp. 4579-4588, 2004 https://doi.org/10.1364/OPEX.12.004579
  13. D.-H. Shin, B. Lee and E.-S. Kim, "Improved viewing quality of 3-D images in computational integral imaging reconstruction based on lenslet array model," ETRI Journal, vol. 28, pp. 521-524, 2006 https://doi.org/10.4218/etrij.06.0206.0014
  14. H. Yoo and D.-H. Shin, "Improved analysis on the signal property of computational integral imaging system," Opt. Express vol. 15, pp. 14107-14114, 2007 https://doi.org/10.1364/OE.15.014107
  15. D.-H. Shin and H. Yoo, "Image quality enhancement in 3D computational integral imaging by use of interpolation methods," Opt. Express vol. 15, pp. 12039-12049, 2007 https://doi.org/10.1364/OE.15.012039
  16. N. Davies, M. McCormick, and L. Yang, "Three- dimensional imaging systems: a new development," Appl. Opt. vol. 27, pp. 4520-4528, 1988 https://doi.org/10.1364/AO.27.004520