ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,462,057, issued on Nov. 4, was assigned to NEC Corp. (Tokyo).

"Image feature matching with formal privacy guarantees" was invented by Francesco Pittaluga (Los Angeles), Bingbing Zhuang (Santa Clara, Calif.) and Xiang Yu (Mountain View, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods are provided for privacy-preserving image feature matching in computer vision applications, including receiving a raw image descriptor, and perturbing the raw image descriptor using a subset selection mechanism to generate a perturbed descriptor set that includes the raw image descriptor and additional descriptors. Each descriptor in the perturbed de...