ALEXANDRIA, Va., June 25 -- United States Patent no. 12,340,515, issued on June 24, was assigned to SIGMASTAR TECHNOLOGY LTD (Fujian, China).
"Image edge detection method and image edge detection device" was invented by Yu Liang (Shanghai).
According to the abstract* released by the U.S. Patent & Trademark Office: "An image edge detection method for processing an image including multiple pixels includes performing a convolution operation on the image by a gradient operator in a first direction and a gradient operator in a second direction to obtain a first-direction gradient data and a second-direction gradient data, wherein the first direction is perpendicular to the second direction, performing a gradient statistical calculation within ...