ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,536,686, issued on Jan. 27, was assigned to VIVOTEK INC. (New Taipei, Taiwan).

"Calibration method of apparatus installation parameter and related surveillance device" was invented by Chao-Tan Huang (New Taipei, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A calibration method of apparatus installation parameter is applied to a surveillance device having an image receiver and an operation processor. The calibration method includes analyzing a detection image from the image receiver to acquire an apparatus installation parameter of the surveillance device, computing a height of at least one target object inside the detection image in accordance ...