US 12,071,012 B2
Device and method for projecting image data onto a projection surface of a vehicle windowpane
Steffen Reichert, Bad Liebenzell (DE); Oliver Sens, Wiesbaden (DE); and Zane Amiralis, Nagold (DE)
Assigned to MERCEDES-BENZ GROUP AG, Stuttgart (DE)
Appl. No. 17/606,179
Filed by DAIMLER AG, Stuttgart (DE)
PCT Filed Mar. 19, 2020, PCT No. PCT/EP2020/057651
§ 371(c)(1), (2) Date Oct. 25, 2021,
PCT Pub. No. WO2020/216537, PCT Pub. Date Oct. 29, 2020.
Claims priority of application No. 102019003039.7 (DE), filed on Apr. 26, 2019.
Prior Publication US 2022/0212539 A1, Jul. 7, 2022
Int. Cl. B60K 35/00 (2024.01); G06T 7/30 (2017.01); G06T 7/55 (2017.01); G06T 7/90 (2017.01)
CPC B60K 35/00 (2013.01) [G06T 7/30 (2017.01); G06T 7/55 (2017.01); G06T 7/90 (2017.01); B60K 2360/334 (2024.01)] 15 Claims
OG exemplary drawing
 
1. A device, comprising:
an image processing unit connected to the interface and configured to generate second image data from first image data;
a brightness sensor connected to the image data processing unit and configured to record brightness surrounding a vehicle as a surroundings brightness; and
a light source connected to the image processing unit and configured to project the second image data onto a projection surface of a windowpane of the vehicle,
wherein the image processing unit is configured to generate the second image data from the first image data depending on the recorded surroundings brightness using a gradation curve that is predetermined in such a way that dark image regions of the first image data lying below a predetermined color brightness threshold compared to image regions lying above the color brightness threshold in the first image data are brightened in the second image data compared to the first image data with regard to color or greyscale spectra, wherein a degree of brightening of the dark image regions in the first image data increases with an increase in the recorded surroundings brightness.