ALEXANDRIA, Va., March 3 -- United States Patent no. 12,567,344, issued on March 3, was assigned to SOCIONEXT INC. (Kanagawa, Japan).
"Map information update method" was invented by Tetsuya Tanaka (Yokohama, Japan) and Yukihiro Sasagawa (Yokohama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A map information update method includes: obtaining one or more projection relationships; obtaining, for each projection relationship, reprojection error information; calculating, for each of one or more landmarks, a first sum value based on all items of reprojection error information associated with the landmark; calculating, for each of one or more keyframes, a second sum value based on all items of reprojectio...