ALEXANDRIA, Va., March 17 -- United States Patent no. 12,579,787, issued on March 17.

"Instrument recognition method based on improved U 2 network" was invented by Dengyin Zhang (Nanjing, China) and Jingwei Li (Nanjing, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention discloses an instrument recognition method based on an improved U2 network. The method includes: replacing common convolution of each layer with grouped convolution Grouped Conv on a basis of an RSU, and segmenting a dial plate and a pointer by using the network; performing noise reduction processing on the scale value array by using a mean filter; and determining a position of a scale value corresponding to the pointe...