US 12,033,280 B2
Method and apparatus for generating a 3D reconstruction of an object
Oliver Schwarz, Ellwangen (DE); and Lars Omlor, Pleasanton, CA (US)
Assigned to Carl Zeiss Vision International GmbH, Aalen (DE)
Filed by Carl Zeiss Vision International GmbH, Aalen (DE)
Filed on Apr. 27, 2020, as Appl. No. 16/860,006.
Application 16/860,006 is a continuation in part of application No. PCT/EP2019/086326, filed on Dec. 19, 2019.
Claims priority of application No. 18214974 (EP), filed on Dec. 20, 2018.
Prior Publication US 2020/0258300 A1, Aug. 13, 2020
Int. Cl. G06T 17/20 (2006.01); G06T 7/11 (2017.01); G06T 7/13 (2017.01)
CPC G06T 17/20 (2013.01) [G06T 7/11 (2017.01); G06T 7/13 (2017.01); G06T 2207/10024 (2013.01); G06T 2207/10028 (2013.01); G06T 2207/20081 (2013.01); G06T 2207/20084 (2013.01)] 20 Claims
OG exemplary drawing
 
17. An apparatus for generating a 3D reconstruction of an object, the apparatus comprising:
a device configured to illuminate an object with illumination light emanating from a light source configuration containing at least one light source;
a device configured to capture image data in relation to the object; and a device configured to calculate the 3D reconstruction of the object from the captured image data,
wherein the captured image data include first image data and second image data,
wherein the first image data are captured from different recording directions, the object being illuminated with the illumination light emanating from the light source configuration incident on an optically effective surface of the object, at least some of the illumination light incident on the optically effective surface being reflected into an object imaging beam path,
wherein the second image data are captured from the different recording directions, the object being illuminated with the same illumination light, at least some of which, in relation to the object imaging beam path, is background light which back-illuminates the object,
wherein a reflection property of the 3D reconstruction of the object is estimated by analyzing an intensity profile along an object point trajectory, and
wherein the 3D reconstruction of the object is calculated from the first image data and the second image data.