ALEXANDRIA, Va., June 4 -- United States Patent no. 12,322,128, issued on June 3, was assigned to Matrox Electronics Systems Ltd. (Quebec, Canada).
"Method, system and apparatus for photometric stereo reconstruction of a surface" was invented by Arnaud Lina (Montreal).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method includes capturing a first image of a surface illuminated from a first direction along an axis by a first light at a first elevation angle with other lights of the illumination system off, and capturing a second image of the surface illuminated from a second direction along the axis by a second light at a second elevation angle with the other lights off, the second direction being opposite ...