Title:
CAMERA MODULE AND DEPTH INFORMATION EXTRACTION METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2020/067737
Kind Code:
A1
Abstract:
A camera device, according to one embodiment of the present invention, comprises: a light output unit which outputs an output-light signal irradiated on an object; a lens unit which comprises an infrared (IR) filter and at least one lens arranged on the IR filter, and condenses an input-light signal reflected from the object; an image sensor which generates an electrical signal from the input-light signal condensed by the lens unit; a tilting unit which shifts the optical path of the input-light signal according to a predetermined rule; and an image control unit which acquires depth information of the object by using a phase difference between the output-light signal, and the input-light signal received at the image sensor, wherein the image control unit acquires the depth information of the object by using data extracted during a plurality of periods during which the optical path of the input-light signal is repeatedly shifted according to the predetermined rule, and the image control unit corrects the difference between a preconfigured shift value of the optical path of the input-light signal, and the actual shift value.
Inventors:
KIM EUN SONG (KR)
LEE CHANG HYUCK (KR)
LEE CHANG HYUCK (KR)
Application Number:
PCT/KR2019/012524
Publication Date:
April 02, 2020
Filing Date:
September 26, 2019
Export Citation:
Assignee:
LG INNOTEK CO LTD (KR)
International Classes:
H04N13/271; H04N13/239; H04N13/246; H04N13/254
Foreign References:
| KR20170005649A | 2017-01-16 | |||
| KR101020999B1 | 2011-03-09 | |||
| KR20130098040A | 2013-09-04 | |||
| US20180176540A1 | 2018-06-21 | |||
| US20150356738A1 | 2015-12-10 |
Attorney, Agent or Firm:
DANA PATENT LAW FIRM (KR)
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