US Patent Issued to ROSENXT HOLDING on June 9 for "Dry calibration for underwater survey" (British Inventors)

ALEXANDRIA, Va., June 9 -- United States Patent no. 12,651,377, issued on June 9, was assigned to ROSENXT HOLDING AG (Stans, Switzerland).

"Dry calibration for underwater survey" was invented by George Terzakis (Bristol, Great Britain) and Lyndon Hill (Bristol, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of calibrating a camera system comprises defining a first, a second, and a third linearly adjacent medium, wherein each medium has a different refractive index from the other mediums. A plurality of virtual planar patterns arranged in different positions or orientations relative to and in front of the virtual representation of the at least one camera lens are generated in the third ...