POSITION-DETECTING DEVICE, CAPSULE ENDOSCOPE SYSTEM, AND POSITION-DETECTING PROGRAM

WIPO Patent Application WO/2013/162033

A1

Provided is a position-detecting device, etc. that are capable of detecting the position of a capsule endoscope with higher precision than in the past while limiting computational complexity. An information-processing device (6) is provided with: a location region-acquiring unit (621) that determines distances between each of multiple receiving antennas and the capsule endoscope on the basis of the respective reception intensities of the signals received by the receiving antennas and acquires a region in which at least two of multiple spheres, which have the respective receiving antennas as the centers and the distances corresponding to the respective receiving antennas as the radii, overlap; an orientation-estimating unit (622) that estimates the orientation of the capsule endoscope at each of multiple points in the region on the basis of the positional relationships between each point and each receiving antenna and of the reception intensities of the signals received by the respective receiving antennas; and a position-determining unit (623) that determines the position of the capsule endoscope in the subject on the basis of the position and the orientation of the capsule endoscope at each point.

HIGAKI NAOYA (JP)
HOMAN MASATOSHI (JP)
HASEGAWA JUN (JP)

PCT/JP2013/062505

October 31, 2013

April 26, 2013

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OLYMPUS MEDICAL SYSTEMS CORP (JP)

A61B1/00; A61B5/06; A61B5/07

WO2012042987A1

2012-04-05

JP2006212051A	2006-08-17
JP2007283001A	2007-11-01
JPH08500441A	1996-01-16
JP2008099734A	2008-05-01
JP2006068501A	2006-03-16
JP2007283001A	2007-11-01

See also references of EP 2842476A4

SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)

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