A Review of Machine-Vision-Based Analysis of Wireless Capsule Endoscopy Video

Table 1

Technical specifications of commercially available small intestine capsules.

Company	Given imaging Inc.	Olympus	IntroMedic	Jinshan
Capsule	PillCam SB/SB2	EndoCapsule	MiroCam	OMOM
Size (diameter × length)	11 mm × 26 mm	11 mm × 26 mm	11 mm × 24 mm	13 mm × 27.9 mm
Image Sensor	CMOS	CCD	CMOS	CCD
Resolution	256 × 256	NA	320×320	640 × 480
Field of View	140°/156°	145°	150˚	140 ± 10°
Image Capture Rate	2 fps	2 fps	3 fps	0.5–2 fps
Illumination	6 LEDs	6 LEDs	6 LEDs	6 LEDs
Battery Life	8 hr	8+ hr	11+ hr	8 ± 1 hr
Communication	RF	RF	HBC	RF
Approval	FDA 2001/2011	FDA 2007	FDA 2012	PRC FDA 2004

CMOS: complementary metal oxide semiconductor, CCD: charge-coupled device, LED: light-emitting diode, RF: radio frequency, HBC: human body communications, NA: not available.