Title:
DEPTH IMAGING METHOD AND APPARATUS, AND COMPUTER READABLE STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2021/218196
Kind Code:
A1
Abstract:
A depth imaging method and apparatus (10), and a computer readable storage medium. The method comprises: controlling a transmitting module (11) to transmit, to a target object (20), at least two speckle patterns which change in time sequence; controlling an acquisition module (12) to acquire speckle patterns reflected back by the target object (20); and performing space-time stereo matching on the speckle patterns and at least two pre-stored reference speckle patterns to calculate the offset of each pixel point, and calculating the depth value of the pixel point according to the offset. Time sequence information is added on the basis of conventional stereo matching methods, and stereo matching is performed by a three-dimensional window according to a space-time stereo matching principle, thereby implementing depth imaging at low cost, high precision, and high frame rate.
Inventors:
XU YUHUA (CN)
XIAO ZHENZHONG (CN)
XU BIN (CN)
YU YUSHAN (CN)
XIAO ZHENZHONG (CN)
XU BIN (CN)
YU YUSHAN (CN)
Application Number:
PCT/CN2020/138118
Publication Date:
November 04, 2021
Filing Date:
December 21, 2020
Export Citation:
Assignee:
ORBBEC INC (CN)
International Classes:
G01B11/22; G02B26/08
Foreign References:
| CN111664798A | 2020-09-15 | |||
| CN103778643A | 2014-05-07 | |||
| CN107424188A | 2017-12-01 | |||
| CN108333859A | 2018-07-27 | |||
| CN109087382A | 2018-12-25 | |||
| US20150063674A1 | 2015-03-05 |
Attorney, Agent or Firm:
CHINA TRUER IP (CN)
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