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1. (WO2017181381) METHOD AND PHOTOGRAPHING DEVICE FOR ACQUIRING DEPTH INFORMATION

Pub. No.:    WO/2017/181381    International Application No.:    PCT/CN2016/079858
Publication Date: Fri Oct 27 01:59:59 CEST 2017 International Filing Date: Fri Apr 22 01:59:59 CEST 2016
IPC: H04N 5/335
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
华为技术有限公司
Inventors: WU, Jun
武隽
Title: METHOD AND PHOTOGRAPHING DEVICE FOR ACQUIRING DEPTH INFORMATION
Abstract:
A method and photographing device for acquiring depth information. The photographing device comprises a camera lens and an image sensor, and the image sensor comprises at least one microlens. Each of the at least one microlens corresponds to one pixel, and one pixel comprises N sub-pixels, N being an integer greater than or equal to four. The method comprises: regarding each of the at least one microlens on the image sensor, the photographing device receives, via a pixel corresponding to said microlens on the image sensor, an optical signal; the photographing device determines, according to the optical signal received by the pixel corresponding to said microlens and a position relationship among the N sub-pixels of said pixel, phase information of said optical signal received by said pixel; the photographing device acquires, according to a predetermined correspondence relationship between phase information and depth information, depth information corresponding to the phase information; and the photographing device determines, according to the depth information corresponding to each of the at least one microlens, depth information corresponding to a photographed object.