Title:
LIGHT-FIELD CAMERA-BASED DEPTH ESTIMATING METHOD AND SYSTEM AND PORTABLE TERMINAL
Document Type and Number:
WIPO Patent Application WO/2019/042185
Kind Code:
A1
Abstract:
The present invention relates to a light-field camera-based depth estimating method and system and a portable terminal, the depth estimating method comprising: acquiring four-dimensional light-field data captured by a light-field camera; decoding the four-dimensional light-field data to acquire light-field images; acquiring a light-field re-focusing sequence by using a re-focusing algorithm; establishing an index image and an index table for the re-focusing sequence; looking up the index table to acquire alpha values corresponding to pixel points; and acquiring the depth of an object according to an object-image relationship. Further provided in the present invention are a depth estimating system of a light-field camera and a portable terminal. Using the depth estimating method and system and portable terminal of the present invention has the advantages of a simple depth estimation algorithm, small burden on a processor and high precision of acquired depth images.
Inventors:
GAO RUIDONG (CN)
XIE LIANG (CN)
JIANG WENJIE (CN)
XIE LIANG (CN)
JIANG WENJIE (CN)
Application Number:
PCT/CN2018/101467
Publication Date:
March 07, 2019
Filing Date:
August 21, 2018
Export Citation:
Assignee:
SHENZHEN ARASHI VISION COMPANY LTD (CN)
International Classes:
G06T7/571
Foreign References:
| CN107578437A | 2018-01-12 | |||
| CN101562701A | 2009-10-21 | |||
| CN104519347A | 2015-04-15 | |||
| US20140226914A1 | 2014-08-14 |
Other References:
ZHANG: "Research on Light-fieldrefocusing Algorithm in Frequency Domain", ELECTRONIC TECHNOLOGY & INFORMATION SCIENCE, CHINA MASTER'S THESES FULL-TEST DATABASE, no. 4, 15 April 2016 (2016-04-15), ISSN: 1674-0246
Attorney, Agent or Firm:
CHINA RANKTOP IP OFFICE (CN)
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