ALEXANDRIA, Va., March 19 -- United States Patent no. 12,254,694, issued on March 18, was assigned to Siemens Healthcare Diagnostics Inc. (Tarrytown, N.Y.).

"Image-based tube top circle detection with multiple candidates" was invented by Yao-Jen Chang (Princeton, N.J.), Stefan Kluckner (Berlin), Benjamin S. Pollack (Jersey City, N.J.) and Terrence Chen (Princeton, N.J.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments provide a method of using image-based tube top circle detection based on multiple candidate selection to localize the tube top circle region in input images. According to embodiments provided herein, the multi-candidate selection enhances the robustness of tube circle detection by maki...