The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 22, 2017
Filed:
Aug. 26, 2015
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventor:
Yuta Nakano, Juan-les Pins, FR;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/34 (2006.01); G06T 7/00 (2017.01); G06K 9/52 (2006.01); G06T 15/20 (2011.01); G06T 7/10 (2017.01); G06T 7/11 (2017.01); G06T 7/12 (2017.01); G06T 7/168 (2017.01);
U.S. Cl.
CPC ...
G06T 7/0079 (2013.01); G06K 9/52 (2013.01); G06T 7/10 (2017.01); G06T 7/11 (2017.01); G06T 7/12 (2017.01); G06T 7/168 (2017.01); G06T 15/20 (2013.01); G06T 2207/20161 (2013.01); G06T 2207/30096 (2013.01);
Abstract
A method and apparatus for segmenting an object from a three-dimensional image are disclosed. According to the method, first, a surface of the object is estimated using scale estimation processes such as Laplacian-of-Gaussian filters in one, two or three dimensions. Second, the estimated surface is transformed by having a shrink function applied to it independently in each dimension to give a regularly shaped (preferably substantially spherical), non-isotropic shape. The object is segmented from the volume around it, and is inverse-transformed to obtain the original shape, which shape is then isolated from the image volume.