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1. (WO2010119913) OPTICAL TOMOGRAPHIC IMAGING APPARATUS AND CONTROL METHOD THEREFOR
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2010/119913 International Application No.: PCT/JP2010/056724
Publication Date: 21.10.2010 International Filing Date: 08.04.2010
IPC:
G01B 9/02 (2006.01) ,A61B 3/12 (2006.01) ,G01N 21/47 (2006.01)
G PHYSICS
01
MEASURING; TESTING
B
MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
9
Instruments as specified in the subgroups and characterised by the use of optical measuring means
02
Interferometers
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
3
Apparatus for testing the eyes; Instruments for examining the eyes
10
Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
12
for looking at the eye fundus, e.g. ophthalmoscopes
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21
Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light
17
Systems in which incident light is modified in accordance with the properties of the material investigated
47
Scattering, i.e. diffuse reflection
Applicants: UTSUNOMIYA, Norihiko[JP/JP]; JP (UsOnly)
MIYATA, Kazuhide[JP/JP]; JP (UsOnly)
CANON KABUSHIKI KAISHA[JP/JP]; 30-2, Shimomaruko 3-chome, Ohta-ku, Tokyo 1468501, JP (AllExceptUS)
Inventors: UTSUNOMIYA, Norihiko; JP
MIYATA, Kazuhide; JP
Agent: OKABE, Masao; No. 602, Fuji Bldg., 2-3, Marunouchi 3-chome, Chiyoda-ku, Tokyo 1000005, JP
Priority Data:
2009-09740213.04.2009JP
Title (EN) OPTICAL TOMOGRAPHIC IMAGING APPARATUS AND CONTROL METHOD THEREFOR
(FR) APPAREIL D'IMAGERIE TOMOGRAPHIQUE OPTIQUE ET SON PROCÉDÉ DE COMMANDE
Abstract:
(EN) There are provided an optical tomographic imaging apparatus which detects an amount of movement of an object during imaging to reduce a deformation or a displacement in a depth direction in an acquired image. The apparatus using interference beams obtained by combining each return beam with each reference beam, the return beams being obtained by scanning the object with measuring beams, including: a unit adapted to scan the object with the measuring beams; a unit adapted to irradiate the object with the measuring beams such that regions of the object irradiated with each measuring beams are partially overlapped; a unit adapted to calculate a positional difference in a depth direction between obtained tomographic images of the overlapped parts of the regions; and a unit adapted to compute an amount of movement of the object based on the calculated positional difference in the depth direction.
(FR) L'invention concerne un appareil d'imagerie tomographique optique qui détecte un degré de mouvement d'un objet pendant la formation d'image afin de réduire une déformation ou un déplacement dans le sens de la profondeur dans une image acquise. L'appareil utilise des faisceaux d'interférence obtenus en combinant chaque faisceau renvoyé à un faisceau de référence, les faisceaux renvoyés étant obtenus en balayant l'objet avec des faisceaux de mesure, et comprend : une unité conçue pour balayer l'objet avec les faisceaux de mesure ; une unité conçue pour exposer l'objet aux faisceaux de mesure de façon à ce que des régions de l'objet exposé à chacun des faisceaux de mesure se chevauchent partiellement ; une unité conçue pour calculer une différence de position dans le sens de la profondeur entre des images tomographiques obtenues des parties des régions qui se chevauchent ; et une unité conçue pour calculer un degré de mouvement de l'objet sur la base de la différence de position calculée dans le sens de la profondeur.
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)