US 12,254,653 B2
Target for multispectral geometrical calibration
Moshe Danziger, Karnei Shomron (IL); Daniel Brosh, Zur Hadassa (IL); and Shaked Yarden, Kiryat Tivon (IL)
Assigned to FORESIGHT AUTOMOTIVE LTD., Ness Ziona (IL)
Appl. No. 18/021,795
Filed by FORESIGHT AUTOMOTIVE LTD., Ness Ziona (IL)
PCT Filed Aug. 18, 2021, PCT No. PCT/IL2021/051008
§ 371(c)(1), (2) Date Feb. 16, 2023,
PCT Pub. No. WO2022/038606, PCT Pub. Date Feb. 24, 2022.
Claims priority of provisional application 63/066,844, filed on Aug. 18, 2020.
Prior Publication US 2023/0316572 A1, Oct. 5, 2023
Int. Cl. G06T 7/80 (2017.01); G01J 5/08 (2022.01); G06T 5/50 (2006.01); G06T 5/92 (2024.01); H04N 17/00 (2006.01)
CPC G06T 7/80 (2017.01) [G01J 5/0859 (2013.01); G06T 5/50 (2013.01); G06T 5/92 (2024.01); H04N 17/002 (2013.01); G06T 2207/10048 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A target for multispectral geometrical calibration, comprising:
a substantially flat metallic plate, wherein a first surface of the metallic plate has a surface roughness of between N9 to N10;
a pattern made from a polymeric ink applied on the first surface;
an array of a plurality of heating elements, attached to a second surface of the flat metallic plate; and
a controller configured to control the heating elements to heat the target, to a temperature of 1° C. to 5° C. above room temperature.