US 10,888,220 B2
Information processing apparatus, image generation method, and computer-readable medium, with acquisition of correction coefficient by performing arithmetic operation on first and second parameters
Riuma Takahashi, Tokyo (JP); Hiroshi Imamura, Kawasaki (JP); Hiroki Uchida, Tokyo (JP); Marek Rozanski, Torun (PL); Tomasz Dziubak, Torun (PL); and Tomasz Bajraszewski, Glogowo (PL)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Mar. 13, 2018, as Appl. No. 15/919,673.
Claims priority of application No. 2017-052761 (JP), filed on Mar. 17, 2017; and application No. 2017-171831 (JP), filed on Sep. 7, 2017.
Prior Publication US 2018/0263485 A1, Sep. 20, 2018
Int. Cl. G06T 7/20 (2017.01); A61B 3/10 (2006.01); A61B 3/00 (2006.01); A61B 3/12 (2006.01); G06T 7/00 (2017.01)
CPC A61B 3/0025 (2013.01) [A61B 3/0033 (2013.01); A61B 3/0041 (2013.01); A61B 3/102 (2013.01); A61B 3/1233 (2013.01); A61B 3/1241 (2013.01); G06T 7/0012 (2013.01); G06T 7/20 (2013.01); G06T 2207/10101 (2013.01); G06T 2207/30041 (2013.01)] 37 Claims
OG exemplary drawing
 
1. An information processing apparatus comprising:
at least one of (a) one or more processors and (b) circuitry, configured to function as a plurality of units comprising:
(1) a first acquisition unit configured to acquire a plurality of pieces of tomographic data each representing information on a cross section of a fundus, which is acquired based on measurement light controlled to scan the same position of the fundus;
(2) a second acquisition unit configured to acquire a correction coefficient by performing an arithmetic operation on (a) a first approximate parameter, which is obtained by transforming, in a first dimension, a parameter of a piece of tomographic data to be used for calculating a motion contrast, and (b) a second approximate parameter, which is obtained by transforming the parameter of the piece of tomographic data in a second dimension smaller than the first dimension;
(3) a correction unit configured to correct at least one piece of tomographic data among the plurality of pieces of tomographic data using the correction coefficient; and
(4) a generation unit configured to generate a motion contrast image based on a motion contrast calculated using the plurality of pieces of tomographic data including the corrected at least one piece of tomographic data.