US 12,406,384 B2
Depth measurement through display
Patrick Schindler, Ludwigshafen (DE); Benjamin Rein, Ludwigshafen (DE); Christian Bonsignore, Ludwigshafen (DE); Michael Eberspach, Ludwigshafen (DE); and Peter Schillen, Ludwigshafen (DE)
Assigned to TRINAMIX GMBH, Ludwigshafen am Rhein (DE)
Filed by TRINAMIX GMBH, Ludwigshafen am Rhein (DE)
Filed on Sep. 15, 2023, as Appl. No. 18/468,327.
Application 18/468,327 is a continuation of application No. 17/756,552, granted, now 11,989,896, previously published as PCT/EP2020/083468, filed on Nov. 26, 2020.
Claims priority of application No. 19211927 (EP), filed on Nov. 27, 2019.
Prior Publication US 2024/0005538 A1, Jan. 4, 2024
Int. Cl. G06T 7/521 (2017.01); G01B 11/22 (2006.01); G01B 11/25 (2006.01); G06V 10/141 (2022.01); G06V 10/145 (2022.01); G06V 10/147 (2022.01); G06V 10/94 (2022.01); G06V 20/64 (2022.01)
CPC G06T 7/521 (2017.01) [G01B 11/22 (2013.01); G01B 11/2513 (2013.01); G06V 10/141 (2022.01); G06V 10/145 (2022.01); G06V 10/147 (2022.01); G06V 10/94 (2022.01); G06V 20/647 (2022.01)] 19 Claims
OG exemplary drawing
 
1. A display device comprising
a. at least one illumination source configured for projecting at least one illumination pattern comprising a plurality of illumination features on at least one scene;
b. at least one optical sensor having at least one light sensitive area, wherein the at least one optical sensor is configured for determining at least one first image comprising a plurality of reflection features generated by the at least one scene in response to illumination by the illumination features;
c. at least one translucent display configured for displaying information, wherein the at least one illumination source and the at least one optical sensor are placed in direction of propagation of the at least one illumination pattern in front of the at least one translucent display; and
d. at least one evaluation device for analyzing the at least one first image, wherein the at least one evaluation device is configured for unambiguously matching of reflection features with corresponding illumination features; wherein evaluation of the at least one first image comprises identifying the plurality of reflection features of the at least one first image with corresponding illumination features, determining a brightness of the plurality of reflection features with corresponding illumination features and matching based on the brightness, wherein the evaluation device is configured for classifying a reflection feature being matched with an illumination feature as a real feature and for classifying a reflection feature not being matched with an illumination feature as a false feature, wherein the real feature is a reflection feature of zero order and the false feature is a reflection feature of an order greater than zero.