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.

Date of Patent:
Jul. 16, 2019

Filed:

Jul. 03, 2017
Applicant:

Carestream Health, Inc., Rochester, NY (US);

Inventors:

Yanbin Lu, Shanghai, CN;

Dawei Sun, Shanghai, CN;

Qinran Chen, Shanghai, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 1/24 (2006.01); A61C 9/00 (2006.01); G06K 9/62 (2006.01); G06T 5/00 (2006.01); G06T 7/11 (2017.01); G06T 7/262 (2017.01);
U.S. Cl.
CPC ...
A61C 9/006 (2013.01); A61B 1/24 (2013.01); G06K 9/6215 (2013.01); G06T 5/002 (2013.01); G06T 7/11 (2017.01); G06T 7/262 (2017.01); G06T 2207/20056 (2013.01); G06T 2207/30036 (2013.01);
Abstract

A method for intraoral imaging acquires structured light images from a region of interest and forms a range image that characterizes the surface contour of the region of interest according to the acquired structured light images. At least one row of pixels in the range image is processed by selecting a segment of the row, computing residual noise in the selected segment, generating a template for the segment, wherein the template is characteristic of an imaging artifact related to motion, computing a similarity factor according to correlation between frequency-domain transforms of the template and computed residual noise and comparing the computed similarity factor against a threshold to identify an image artifact. The image artifact or excessive motion are reported.


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