US 12,361,574 B2
Depth camera capable of measuring the oblique velocity of an object
Wen-Hsin Sun, Taoyuan (TW); Jun-Yi Yu, Taoyuan (TW); Siang-Siuan Tsai, Taoyuan (TW); Guan-Wei Huang, Taoyuan (TW); and Ching-Cherng Sun, Taoyuan (TW)
Assigned to National Central University, Taoyuan (TW)
Filed by NATIONAL CENTRAL UNIVERSITY, Taoyuan (TW)
Filed on Oct. 11, 2023, as Appl. No. 18/378,795.
Claims priority of application No. 112128718 (TW), filed on Jul. 31, 2023.
Prior Publication US 2025/0045941 A1, Feb. 6, 2025
Int. Cl. G06T 7/50 (2017.01); G06T 7/20 (2017.01); H04N 23/51 (2023.01)
CPC G06T 7/50 (2017.01) [G06T 7/20 (2013.01); H04N 23/51 (2023.01); G06T 2207/10028 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A depth camera capable of measuring an oblique velocity of an object, comprising:
a depth camera body comprising a set of lenses, a computation unit, and a storage unit; and
a third configuration file comprising:
a first configuration file stored in the storage unit and recording a reference pixel number in a horizontal direction, an image sensor length, and a lens focal length, wherein the image sensor length is a length of an image sensor corresponding to one of the lenses, and the lens focal length is a fixed focal length of the one of the lenses; and
a second configuration file stored in the storage unit and recording a reference pixel number in a vertical direction, a distance of a longitudinal movement of a second object, and the lens focal length;
wherein the computation unit reads or records the third configuration file and runs an oblique velocity calculation system, the oblique velocity calculation system comprising:
a lateral velocity calculation system for generating a lateral velocity of an object;
a longitudinal velocity calculation system for generating a longitudinal velocity of the object, and
oblique velocity calculation software for generating an oblique velocity of the object by taking a square root of a sum of a square of the lateral velocity of the object and a square of the longitudinal velocity of the object;
wherein the lateral velocity of the object and/or the longitudinal velocity of the object is greater than or equal to zero.