Patent ID: 9451240
Filing Date: 2016-09-20
CPC Classification: H04N

Claim Text:
1. A three-dimensional (3D) image acquisition apparatus comprising: a light source which radiates infrared (IR) light within a predetermined wavelength region onto an object; a lens unit comprising a first object lens and at least three second object lenses; an image sensor comprising a first sensing region, which receives visible light focused by the first object lens and generates a color image, and at least three second sensing regions which receive the IR light focused by the at least three second object lenses and generate at least three IR images; at least three optical shutters, wherein each of the at least three optical shutters is disposed on only an optical path which passes through one of the at least three second object lenses and modulates incident light, and wherein no optical shutter is disposed on an optical path passing through the first object lens; an image signal processing unit configured to generate a depth image using the at least three IR images and generate a 3D image using the color image and the depth image; and a control unit configured to control operations of the light source and the at least three optical shutters.