Title:
TOMOGRAPHY DEVICE CALIBRATION METHOD AND TOMOGRAPHY IMAGE SUPERPOSITION METHOD
Document Type and Number:
WIPO Patent Application WO/2007/037307
Kind Code:
A1
Abstract:
[PROBLEMS] To convert position data corresponding to tomogram data acquired
from a tomography device into position data of a common coordinate system between
different tomography devices and superimpose the data. [MEANS FOR SOLVING PROBLEMS]
An optical tracking device (3) is prepared and a marker (4) which can be detected
by the tracking device is mounted on a gantry (1). A calibration jig having a similar
marker (61) and a ray source (62) which can be detected by a gantry detector is held
by a holding device (2). Position data on the both markers (4, 61) when scan is performed
are acquired by the tracking device so as to obtain a transformation matrix TG→P
for converting the position data of the gantry coordinate system CG
into position data of the scanner coordinate system CP of the tomography
device. Images having position data of the scanner coordinate system CP
are superimposed on each other.
Inventors:
IIDA HIDEHIRO (JP)
WATABE HIROSHI (JP)
OTA TOSHIHIRO (JP)
WATABE HIROSHI (JP)
OTA TOSHIHIRO (JP)
Application Number:
PCT/JP2006/319264
Publication Date:
April 05, 2007
Filing Date:
September 28, 2006
Export Citation:
Assignee:
JAPAN HEALTH SCIENCE FOUND (JP)
IIDA HIDEHIRO (JP)
WATABE HIROSHI (JP)
OTA TOSHIHIRO (JP)
IIDA HIDEHIRO (JP)
WATABE HIROSHI (JP)
OTA TOSHIHIRO (JP)
International Classes:
A61B6/03; A61B5/055; G01T1/161; G01T7/00
Foreign References:
| JP2003299642A | 2003-10-21 | |||
| JPS6385482A | 1988-04-15 | |||
| JP2002186603A | 2002-07-02 | |||
| JPH095441A | 1997-01-10 |
Other References:
WOO S.-K. ET AL.: "Sinogram-Based Motion Correction of PET Images Using Optical Motion Tracking System and List-Mode Data Acquisition", IEEE TRANSACTIONS ON NUCLEAR SCIENCE, vol. 51, no. 3, June 2004 (2004-06-01), pages 7822 - 788, XP011114821
MITSCHKE M.M. AND NAVAB N.: "Recovering Projection Geometry: How a cheap camera can outperform an expensive stereo system", IEEE COMPUTER SOCIETY CONFERENCE ON COMPUTER VISION AND PATTERN RECOGNITION, vol. 1, June 2000 (2000-06-01), pages 193 - 200, XP003011081
MITSCHKE M.M. AND NAVAB N.: "Recovering Projection Geometry: How a cheap camera can outperform an expensive stereo system", IEEE COMPUTER SOCIETY CONFERENCE ON COMPUTER VISION AND PATTERN RECOGNITION, vol. 1, June 2000 (2000-06-01), pages 193 - 200, XP003011081
Attorney, Agent or Firm:
IDE, Masatake et al. (9F Gobancho Grand Bldg., 3-1, Gobanch, Chiyoda-ku Tokyo 76, JP)
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