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A Modular and Programmable Development Platform for Capsule Endoscopy System

  • Mobile Systems
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Abstract

The state-of-the-art capsule endoscopy (CE) technology offers painless examination for the patients and the ability to examine the interior of the gastrointestinal tract by a noninvasive procedure for the gastroenterologists. In this work, a modular and flexible CE development system platform consisting of a miniature field programmable gate array (FPGA) based electronic capsule, a microcontroller based portable data recorder unit and computer software is designed and developed. Due to the flexible and reprogrammable nature of the system, various image processing and compression algorithms can be tested in the design without requiring any hardware change. The designed capsule prototype supports various imaging modes including white light imaging (WLI) and narrow band imaging (NBI), and communicates with the data recorder in full duplex fashion, which enables configuring the image size and imaging mode in real time during examination. A low complexity image compressor based on a novel color-space is implemented inside the capsule to reduce the amount of RF transmission data. The data recorder contains graphical LCD for real time image viewing and SD cards for storing image data. Data can be uploaded to a computer or Smartphone by SD card, USB interface or by wireless Bluetooth link. Computer software is developed that decompresses and reconstructs images. The fabricated capsule PCBs have a diameter of 16 mm. An ex-vivo animal testing has also been conducted to validate the results.

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Acknowledgments

This work was supported by Grand Challenges Canada (GCC) Star in Global Health, Natural Science and Engineering Research Council of Canada (NSERC) and Canada Foundation for Innovation (CFI). The authors would like to thank Serge Nazerenko, Chandler Janzen, and Mohammad Shamim Imtiaz their help and technical assistance. Thanks to Western College of Veterinary Medicine (WCVM) of University of Saskatchewan for providing lab facility for conducting animal testing.

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  1. Department of Electrical and Computer Engineering, University of Saskatchewan, Saskatoon, Saskatchewan, S7N5A9, Canada

    Tareq Hasan Khan, Ravi Shrestha & Khan A. Wahid

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  1. Tareq Hasan Khan
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  3. Khan A. Wahid
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Correspondence to Khan A. Wahid.

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Khan, T.H., Shrestha, R. & Wahid, K.A. A Modular and Programmable Development Platform for Capsule Endoscopy System. J Med Syst 38, 57 (2014). https://doi.org/10.1007/s10916-014-0057-6

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