Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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Analysis between elemental image size and object locations in the pickup using periodically-distributed lenslets and enhancement of computational integral imaging

주기적으로 배치된 렌즈 배열 픽업에서의 요소 영상 크기와 3차원 물체 위치와의 해석과 컴퓨터 집적 영상 복원 화질 개선 방법

  • Received : 2011.03.07
  • Accepted : 2011.03.23
  • Published : 2011.05.30
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Abstract

This paper describes an analysis on the relationship between elemental image size and object locations in the computational integral imaging reconstruction and in the pickup using a periodically-distributed lenslet array. A sparse sampling effect arises from a periodically-distributed lenslet array in the pickup of 3D objects. The relationship between elemental image size and object location is also reported. Based on the analysis, a method to eliminate the sparse sampling is proposed. To show the effectiveness of the proposed method, experimental results are carried out. It turns out that the theory works.

본 논문에서는 주기적으로 배치된 렌즈 배열을 이용한 광학 픽업과 평면기반 컴퓨터 집적 영상 복원 (CIIR) 기술에서 요소 영상 크기와 3차원 물체의 복원 깊이 위치에 따른 복원 성능에 대한 분석을 제시한다. 주기적으로 배치된 렌즈 배열에서는 3차원 물체를 픽업할 때 주기성으로 인한 희박 표본화가 발생함이 보고된다. 또한 희박 표본화가 발생하는 3차원 물체의 위치는 요소 영상의 크기와 관계식을 제시한다. 희박 표본화를 회피하는 방안을 제시하고, 이론의 평가를 위해서 컴퓨터 실험을 진행했고 그 결과는 이론을 잘 뒷받침함을 보였다.

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References

  1. G. Lippmann, "La photographic integrale," C.R. Acad. Sci. Vol. 146, pp. 446-451, 1908.
  2. 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
  3. J. 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. H. Arimoto and B. Javidi, "Integral three-dimensional imaging with digital reconstruction" Opt. Lett. Vol. 26, pp. 157-159, 2001. https://doi.org/10.1364/OL.26.000157
  5. S.-H. Hong, J.-S. Jang, and B. Javidi, "Threedimensional volumetric object reconstruction using computational integral imaging" Opt. Express, Vol. 12, pp. 483-491, 2004. https://doi.org/10.1364/OPEX.12.000483
  6. 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
  7. S.-H. Hong and B. Javidi, " Distortion-tolerant 3D recognition of occluded objects using computational integral imaging ," Opt. Express Vol. 14, pp. 12085- 12095, 2006. https://doi.org/10.1364/OE.14.012085
  8. J.-S. Park, D.-C. Hwang, D.-H. Shin and E.-S. Kim, "Resolution-enhanced 3D image correlator using computationally reconstructed integral images," Opt. Commun. Vol. 276, pp. 72-79, 2007. https://doi.org/10.1016/j.optcom.2007.04.007
  9. 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
  10. 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

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  1. 컴퓨터 집적 영상 기술에서 픽업 모델 개선에 의한 복원 화질 개선 방법 vol.15, pp.7, 2011, https://doi.org/10.6109/jkiice.2011.15.7.1598