Title:
THREE-DIMENSIONAL IMAGE RANGING SYSTEM AND METHOD
Document Type and Number:
WIPO Patent Application WO/2019/196001
Kind Code:
A1
Abstract:
A three-dimensional image ranging system (10), comprising a light-emitting module (12), a photosensitive pixel array (142) and an operation unit (16). The light-emitting module transmits a first structured light in a first time and transmits a second structured light in a second time, wherein the structured light phase difference between the first structured light and the second structured light is an odd multiple of π/2. The photosensitive pixel array generates a first image (P1) in the first time and generates a second image (P2) in the second time. The operation unit is used for generating an in-phase image (I) related to the first structured light and an orthogonal image (Q) related to the second structured light according to the first image and the second image, and generating a depth image (DP) corresponding to a target object according to the in-phase image and the orthogonal image.
Inventors:
YANG MENG-TA (CN)
Application Number:
PCT/CN2018/082441
Publication Date:
October 17, 2019
Filing Date:
April 10, 2018
Export Citation:
Assignee:
SHENZHEN GOODIX TECH CO LTD (CN)
International Classes:
G01B11/25; G01B11/22
Foreign References:
| CN106289092A | 2017-01-04 | |||
| CN107690565A | 2018-02-13 | |||
| CN1786658A | 2006-06-14 | |||
| US20170236014A1 | 2017-08-17 | |||
| US20160063309A1 | 2016-03-03 |
Attorney, Agent or Firm:
SHANGHAI CHENHAO INTELLECTUAL PROPERTY LAW FIRM GENERAL PARTNERSHIP (CN)
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