Journal of Sensor Science and Technology (센서학회지)

The Korean Sensors Society (한국센서학회)
권호 표지
DOI QR코드

DOI QR Code

Vision chip for edge detection with resolution improvement through simplification of unit-pixel circuit

단위 픽셀 회로의 간소화를 통해서 해상도를 향상시킨 이차원 윤곽 검출용 시각칩

  • Sung, Dong-Kyu (Department of Electronics, Kyungpook National University) ;
  • Kong, Jae-Sung (Department of Electronics, Kyungpook National University) ;
  • Hyun, Hyo-Young (Department of Electronics, Kyungpook National University) ;
  • Shin, Jang-Kyoo (Department of Electronics, Kyungpook National University)
  • Published : 2008.01.31
Download PDF
⟨ Previous Next ⟩

Abstract

When designing image sensors including a CMOS vision chip for edge detection, resolution is a significant factor to evaluate the performance. It is hard to improve the resolution of a bio-inspired CMOS vision using a resistive network because the vision chip contains many circuits such as a resistive network and several signal processing circuits as well as photocircuits of general image sensors such as CMOS image sensor (CIS). Low resolution restricts the use of the application systems. In this paper, we improve the resolution through layout and circuit optimization. Furthermore, we have designed a printed circuit board using FPGA which controls the vision chip. The vision chip for edge detection has been designed and fabricated by using $0.35{\mu}m$ double-poly four-metal CMOS technology, and its output characteristics have been investigated.

Keywords

References

  1. C. A. Mead, Analog VLSI and Neural Systems, Addison- Wesley, 1989
  2. Z. Jia, A. Balasuriya, and S. Challa, 'Recent developments in vision based target tracking for autonomous vehicles navigation', Intelligent Transportation Systems, 2006 IEEE, Proceedings, 2006
  3. Alireza Moini, Vision Chips or Seeing Silicon, CHiPTec, 1997
  4. S. K. Mendis, S. E. Kemeny, R. C. Gee, B. Pain, C. O. Staller, Q. Kim, and E. R. Fossum, 'CMOS active pixel image sensors for highly integrated imaging systems', IEEE J. Solid-State Circuits, vol. 32, pp. 187-197, Feb. 1997 https://doi.org/10.1109/4.551910
  5. C. Y. Wu and C. F. Chiu, 'A new structure of the 2-D silicon retina', IEEE J. Solid-State Circuits, vol. 30, pp. 890-897, 1995 https://doi.org/10.1109/4.400431
  6. S. H. Suh, J. H. Kim, J. S. Kong, and J. K. Shin, 'Vision chip for edge detection with a function of pixel FPN reduction', J. Korean Sensors Society, vol. 14, no. 3, pp. 191-197, 2005 https://doi.org/10.5369/JSST.2005.14.3.191
  7. J. S. Kong, S. H. Suh, S. H. Kim, J. K. Shin, and M. H. Lee, 'Resolution improvement of a CMOS vision chip for edge detection by separating photosensing and edge detection circuits', J. Korean Sensors Society, vol. 15, no. 2, pp. 112-119, 2006 https://doi.org/10.5369/JSST.2006.15.2.112
  8. R. Takami, K. Shimonomura, S. Kameda, and T. Yagi, 'An image pre-processing system employing neuromorphic 100 x100 pixel silicon retina [robot vision applications]', Circuits and Systems, ISCAS 2005. IEEE International Symposium, vol. 3, pp. 2771-2774, 23-26 May 2005
  9. H. Yamada, T. Miyashita, M. Ohtani, K. Nishio, H. Yonezu, and Y. Furukawa, 'An integrated circuit for two-dimensional edge-detection with local adaptation based on retinal networks', OPTICAL REVIEW, vol. 9, no. 1, pp. 1-8, 2002 https://doi.org/10.1007/s10043-002-0001-8
  10. H. Ikeda, K. Tsuji, T. Asai, H. Yonezu, and J. K. Shin, 'A novel retina chip with simple wiring for edge extraction', IEEE Photonics Technology Letters, vol. 10, no. 2, pp. 261-263, 1998 https://doi.org/10.1109/68.655378
  11. J. H. Kim, J. H. Park, J. K. Shin, M. H. Lee, 'Analysis of local light adaptation mechanism in a biologically motivated CMOS vision chip for edge detection', IEEE Int. Conf. Neural Networks and Signal Processing, vol 1, pp. 275-278, 2003
  12. R. C. Yen and P. R. Gray, 'A MOS switched-capacitor instrumentation amplifier', IEEE J. Solid-State Circuits, vol. 17, no. 6, pp. 1008-1013, 1982 https://doi.org/10.1109/JSSC.1982.1051854
  13. Marcel J. M. Pelgrom, Aad C. J. Duinmaijer, and Anton P. G. Welbers, 'Matching properties of MOS transistors', IEEE J. Solid-State Circuits, vol. 24, no. 5, pp. 1433-1440, 1989 https://doi.org/10.1109/JSSC.1989.572629
  14. S. Kavadias 'Offset-free column readout circuit for CMOS image sensors', Electronics Letters, vol. 35, no. 24, pp. 2112-2113, 1999 https://doi.org/10.1049/el:19991453
  15. D. S. Park, K. M. Kim, S. K. Lee, H. S. Kim, J. H. Kim, M. H. Lee, and J. K. shin, 'Design and fabrication of 32 x32 foveated CMOS retina chip for edge detection with local-light adaptation', J. Korean Sensors Society, vol. 11, pp. 84-92, 2002 https://doi.org/10.5369/JSST.2002.11.2.084