US Patent Issued to NANJING UNIVERSITY on June 24 for "Ray-free dental x-ray periapical film virtual imaging method based on virtual reality" (Chinese Inventors)

ALEXANDRIA, Va., June 25 -- United States Patent no. 12,336,765, issued on June 24, was assigned to NANJING UNIVERSITY (Jiangsu, China).

"Ray-free dental x-ray periapical film virtual imaging method based on virtual reality" was invented by Xun Cao (Jiangsu, China), Yidi Zhang (Jiangsu, China), Hao Zhu (Jiangsu, China), Zhuoyi Liao (Jiangsu, China) and Weibin Sun (Jiangsu, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A ray-free dental X-ray periapical film virtual imaging method based on virtual reality (VR) includes: constructing a VR positioning system, and tracing a position of a tracker bonded bound with a tube of a dental film machine and a spatial attitude matrix in real time; scanning and reco...