US 12,222,220 B2
Floor height detection method and related surveillance camera
Chao-Tan Huang, New Taipei (TW)
Assigned to VIVOTEK INC., New Taipei (TW)
Filed by VIVOTEK INC., New Taipei (TW)
Filed on Nov. 22, 2021, as Appl. No. 17/533,073.
Claims priority of application No. 109141780 (TW), filed on Nov. 27, 2020.
Prior Publication US 2022/0170740 A1, Jun. 2, 2022
Int. Cl. G06V 20/00 (2022.01); G01C 5/00 (2006.01); G06N 20/00 (2019.01); G06V 10/22 (2022.01); G06V 20/52 (2022.01)
CPC G01C 5/00 (2013.01) [G06N 20/00 (2019.01); G06V 10/22 (2022.01); G06V 20/52 (2022.01)] 18 Claims
OG exemplary drawing
 
1. A floor height detection method applied to a surveillance camera, a surveillance image captured by the surveillance camera containing a surveillance region, the floor height detection method comprising:
dividing the surveillance image at least into a first region and a second region;
acquiring an installing height matrix of the surveillance camera upon the first region and the second region; and
utilizing a matrix factorization algorithm to analyze the installing height matrix for acquiring floor heights of the surveillance region, so as to determine whether to divide the first region or the second region in accordance with the floor heights.