A new system design of the multi-view Micro-Ball endoscopy system

While the wireless endoscopic capsule examining human's large gastrointestinal (GI) cavity, such as stomach and large intestine, many interested spots are omitted by only one or two cameras due to its limited field of view. This paper proposes the new system architecture of the Micro-Ball for medical endoscopy application. Six cameras are embedded in the Micro-Ball for multiple fields of view, which can reduce endoscopic miss rate greatly. Based on this system architecture, a new working mode is proposed. The captured image data are saved in the Flash memory instead of being transmitted outside human body wirelessly. Only less than 6mJ is consumed when the Micro-Ball captures a frame of 480×480 image and writes the image data into the Flash memory. The endoscopic Micro-Ball can work in human's GI tract for 10 hours when the image frame rate is 2 fps. The Micro-Ball endoscopy system is verified on the FPGA-based demonstration system.

[1]  Zhihua Wang,et al.  A new globularity capsule endoscopy system with multi-camera , 2009, 2009 IEEE Biomedical Circuits and Systems Conference.

[2]  P. Swain.  The future of wireless capsule endoscopy. , 2008, World journal of gastroenterology.

[3]  Guolin Li,et al.  A Low-Power Digital IC Design Inside the Wireless Endoscopic Capsule , 2006, IEEE Journal of Solid-State Circuits.

[4]  Zhihua Wang,et al.  A Wireless Capsule Endoscope System With Low-Power Controlling and Processing ASIC , 2009, IEEE Transactions on Biomedical Circuits and Systems.

[5]  E. Rondonotti,et al.  Complications, limitations, and failures of capsule endoscopy: a review of 733 cases. , 2005, Gastrointestinal endoscopy.

[6]  P. Swain,et al.  Wireless capsule endoscopy. , 2002, The Israel Medical Association journal : IMAJ.

[7]  M.Q.-H. Meng,et al.  Physiological Factors of the Small Intestine in Design of Active Capsule Endoscopy , 2005, 2005 IEEE Engineering in Medicine and Biology 27th Annual Conference.

[8]  Tetsuya Nakamura,et al.  Capsule endoscopy: past, present, and future , 2008, Journal of Gastroenterology.

[9]  G. Iddan,et al.  Wireless capsule endoscopy , 2003, Gut.

[10]  J. Leighton,et al.  A Single-Center Experience of 260 Consecutive Patients Undergoing Capsule Endoscopy for Obscure Gastrointestinal Bleeding , 2007, The American Journal of Gastroenterology.