Abstract

In this study, a radial imaging capsule endoscope (RICE) system is designed, which differs from a conventional front imaging capsule endoscope (FICE) system. To observe the wrinkled intima of the intestine, which spreads without folding around the circumference of the capsule when a capsule endoscope with a diameter that slightly exceeds that of the intestine passes through it, the RICE uses a cone mirror, a radial window shell, and a focus optical module that comprise the radial imaging system. This concept was demonstrated in a packaged optical simulator. The RICE optical model also has been established and verified by many simulations and experiments. In minimizing the sagittal and tangential aberrations, the optical module of the RICE has achieved an F-number of 4.2, a viewing angle of 65.08°, and an RMS radius of the 4th to 6th fields of less than 17 um. A comparison of these characteristics with those of the focus optical module that is used in FICE lenses reveals that the spot size is 50% larger for each field, and the modulation transfer function (MTF) is remarkably improved from 7% to 36% at 100 lp/mm on the 5th field of the sagittal plane.

© 2011 OSA

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References

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  1. Given imaging, M2A Given® Diagnostic System. http://www.givenimaging.com/
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    [CrossRef] [PubMed]
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    [CrossRef] [PubMed]
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    [CrossRef] [PubMed]
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    [CrossRef] [PubMed]
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  8. Y. Yagi, and S. Kawato, “Panorama scene analysis with conic projection,” in Proceedings of IEEE/RSJ Workshop Intelligent Robots and Systems (IEEE, 1990), pp. 181–187.
  9. H. Ishiguro, “Development of low-cost compact omnidirectional vision sensors and their applications,” in Proceedings of IEEE Conference on Information Systems, Analysis and Synthesis (IEEE, 1996), pp. 433–439.
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    [CrossRef]
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    [CrossRef]
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    [CrossRef]
  14. V. N. Mahajan, Optical Imaging and Aberrations, Part I: Ray Geometrical Optics, (SPIE Press, 1998), Chap. 4.
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  16. D. Malacara, and Z. Malacara, Handbook of Optical Design, (Marcel Dekker, 2003), Chap. 4.

2008 (2)

T. Nakamura and A. Terano, “Capsule endoscopy: past, present, and future,” J. Gastroenterol. 43(2), 93–99 (2008).
[CrossRef] [PubMed]

M. Ou-Yang, S. W. Huang, W. K. Su, H. M. Feng, Z. Y. Chen, H. M. Wu, and Y. T. Kuo, “Optimizing the depth of field for short object distance of capsule endoscope,” Proc. SPIE 6859, 68591Q (2008).
[CrossRef]

2007 (1)

M. Ou-Yang, S. W. Huang, Y. L. Chen, H. H. Lee, and P. K. Weng, “Design of wide-angle lenses for wireless capsule endoscopes,” Opt. Eng. 46(10), 103002 (2007).
[CrossRef]

2003 (1)

A. Uehara and K. Hoshina, “Capsule endoscope NORIKA system,” Minim. Invasive Ther. Allied Technol. 12(5), 227–234 (2003).
[CrossRef] [PubMed]

2000 (1)

G. D. Meron, “The development of the swallowable video capsule (M2A),” Gastrointest. Endosc. 52(6), 817–819 (2000).
[CrossRef] [PubMed]

1999 (1)

S. Baker and S. K. Nayar, “A theory of single-viewpoint catadioptric image formation,” Int. J. Comput. Vis. 35(2), 175–196 (1999).
[CrossRef]

1997 (1)

Baker, S.

S. Baker and S. K. Nayar, “A theory of single-viewpoint catadioptric image formation,” Int. J. Comput. Vis. 35(2), 175–196 (1999).
[CrossRef]

Chahl, J. S.

Chen, Y. L.

M. Ou-Yang, S. W. Huang, Y. L. Chen, H. H. Lee, and P. K. Weng, “Design of wide-angle lenses for wireless capsule endoscopes,” Opt. Eng. 46(10), 103002 (2007).
[CrossRef]

Chen, Z. Y.

M. Ou-Yang, S. W. Huang, W. K. Su, H. M. Feng, Z. Y. Chen, H. M. Wu, and Y. T. Kuo, “Optimizing the depth of field for short object distance of capsule endoscope,” Proc. SPIE 6859, 68591Q (2008).
[CrossRef]

Feng, H. M.

M. Ou-Yang, S. W. Huang, W. K. Su, H. M. Feng, Z. Y. Chen, H. M. Wu, and Y. T. Kuo, “Optimizing the depth of field for short object distance of capsule endoscope,” Proc. SPIE 6859, 68591Q (2008).
[CrossRef]

Hoshina, K.

A. Uehara and K. Hoshina, “Capsule endoscope NORIKA system,” Minim. Invasive Ther. Allied Technol. 12(5), 227–234 (2003).
[CrossRef] [PubMed]

Huang, S. W.

M. Ou-Yang, S. W. Huang, W. K. Su, H. M. Feng, Z. Y. Chen, H. M. Wu, and Y. T. Kuo, “Optimizing the depth of field for short object distance of capsule endoscope,” Proc. SPIE 6859, 68591Q (2008).
[CrossRef]

M. Ou-Yang, S. W. Huang, Y. L. Chen, H. H. Lee, and P. K. Weng, “Design of wide-angle lenses for wireless capsule endoscopes,” Opt. Eng. 46(10), 103002 (2007).
[CrossRef]

Kuo, Y. T.

M. Ou-Yang, S. W. Huang, W. K. Su, H. M. Feng, Z. Y. Chen, H. M. Wu, and Y. T. Kuo, “Optimizing the depth of field for short object distance of capsule endoscope,” Proc. SPIE 6859, 68591Q (2008).
[CrossRef]

Lee, H. H.

M. Ou-Yang, S. W. Huang, Y. L. Chen, H. H. Lee, and P. K. Weng, “Design of wide-angle lenses for wireless capsule endoscopes,” Opt. Eng. 46(10), 103002 (2007).
[CrossRef]

Meron, G. D.

G. D. Meron, “The development of the swallowable video capsule (M2A),” Gastrointest. Endosc. 52(6), 817–819 (2000).
[CrossRef] [PubMed]

Nakamura, T.

T. Nakamura and A. Terano, “Capsule endoscopy: past, present, and future,” J. Gastroenterol. 43(2), 93–99 (2008).
[CrossRef] [PubMed]

Nayar, S. K.

S. Baker and S. K. Nayar, “A theory of single-viewpoint catadioptric image formation,” Int. J. Comput. Vis. 35(2), 175–196 (1999).
[CrossRef]

Ou-Yang, M.

M. Ou-Yang, S. W. Huang, W. K. Su, H. M. Feng, Z. Y. Chen, H. M. Wu, and Y. T. Kuo, “Optimizing the depth of field for short object distance of capsule endoscope,” Proc. SPIE 6859, 68591Q (2008).
[CrossRef]

M. Ou-Yang, S. W. Huang, Y. L. Chen, H. H. Lee, and P. K. Weng, “Design of wide-angle lenses for wireless capsule endoscopes,” Opt. Eng. 46(10), 103002 (2007).
[CrossRef]

Srinivasan, M. V.

Su, W. K.

M. Ou-Yang, S. W. Huang, W. K. Su, H. M. Feng, Z. Y. Chen, H. M. Wu, and Y. T. Kuo, “Optimizing the depth of field for short object distance of capsule endoscope,” Proc. SPIE 6859, 68591Q (2008).
[CrossRef]

Terano, A.

T. Nakamura and A. Terano, “Capsule endoscopy: past, present, and future,” J. Gastroenterol. 43(2), 93–99 (2008).
[CrossRef] [PubMed]

Uehara, A.

A. Uehara and K. Hoshina, “Capsule endoscope NORIKA system,” Minim. Invasive Ther. Allied Technol. 12(5), 227–234 (2003).
[CrossRef] [PubMed]

Weng, P. K.

M. Ou-Yang, S. W. Huang, Y. L. Chen, H. H. Lee, and P. K. Weng, “Design of wide-angle lenses for wireless capsule endoscopes,” Opt. Eng. 46(10), 103002 (2007).
[CrossRef]

Wu, H. M.

M. Ou-Yang, S. W. Huang, W. K. Su, H. M. Feng, Z. Y. Chen, H. M. Wu, and Y. T. Kuo, “Optimizing the depth of field for short object distance of capsule endoscope,” Proc. SPIE 6859, 68591Q (2008).
[CrossRef]

Appl. Opt. (1)

Gastrointest. Endosc. (1)

G. D. Meron, “The development of the swallowable video capsule (M2A),” Gastrointest. Endosc. 52(6), 817–819 (2000).
[CrossRef] [PubMed]

Int. J. Comput. Vis. (1)

S. Baker and S. K. Nayar, “A theory of single-viewpoint catadioptric image formation,” Int. J. Comput. Vis. 35(2), 175–196 (1999).
[CrossRef]

J. Gastroenterol. (1)

T. Nakamura and A. Terano, “Capsule endoscopy: past, present, and future,” J. Gastroenterol. 43(2), 93–99 (2008).
[CrossRef] [PubMed]

Minim. Invasive Ther. Allied Technol. (1)

A. Uehara and K. Hoshina, “Capsule endoscope NORIKA system,” Minim. Invasive Ther. Allied Technol. 12(5), 227–234 (2003).
[CrossRef] [PubMed]

Opt. Eng. (1)

M. Ou-Yang, S. W. Huang, Y. L. Chen, H. H. Lee, and P. K. Weng, “Design of wide-angle lenses for wireless capsule endoscopes,” Opt. Eng. 46(10), 103002 (2007).
[CrossRef]

Proc. SPIE (1)

M. Ou-Yang, S. W. Huang, W. K. Su, H. M. Feng, Z. Y. Chen, H. M. Wu, and Y. T. Kuo, “Optimizing the depth of field for short object distance of capsule endoscope,” Proc. SPIE 6859, 68591Q (2008).
[CrossRef]

Other (9)

V. N. Mahajan, Optical Imaging and Aberrations, Part I: Ray Geometrical Optics, (SPIE Press, 1998), Chap. 4.

V. N. Mahajan, Optical Imaging and Aberrations, Part II: Wave Diffraction Optics, (SPIE Press, 2001), Chap. 4.

D. Malacara, and Z. Malacara, Handbook of Optical Design, (Marcel Dekker, 2003), Chap. 4.

Given imaging, M2A Given® Diagnostic System. http://www.givenimaging.com/

D. W. Rees, “Panoramic television viewing system,” US Patent application 3505465 (April 1970).

J. Hong, X. Tan, B. Pinette, R. Weiss, and E. M. Riseman, “Image-based homing,” in Proceedings of IEEE Conference on Robotics and Automation (IEEE, 1991), pp. 620–625.

Y. Yagi, and S. Kawato, “Panorama scene analysis with conic projection,” in Proceedings of IEEE/RSJ Workshop Intelligent Robots and Systems (IEEE, 1990), pp. 181–187.

H. Ishiguro, “Development of low-cost compact omnidirectional vision sensors and their applications,” in Proceedings of IEEE Conference on Information Systems, Analysis and Synthesis (IEEE, 1996), pp. 433–439.

M. Yachida, “Omnidirectional sensing and combined multiple sensing,” in Proceedings of IEEE and ATR Workshop on Computer Vision for Virtual Reality Based Human Communications (IEEE, 1998), pp. 20–27.

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