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Patent Searching and Data


Title:
CALIBRATION BOARD, CALIBRATION METHOD AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/189626
Kind Code:
A1
Abstract:
A calibration board (100), comprising checkerboard units (101) arranged on the surface of the calibration board (100), wherein at least one dot is independently provided in each checkerboard unit (101); the dots at least comprise a first feature dot (102) and a second feature dot (103); the first feature dot (102) and the second feature dot (103) are arranged on the checkerboard unit (101) according to a random rule or a specific rule, and the diameter of the first feature dot (102) is greater than that of the second feature dot (103). The calibration board (100) utilizes the characteristics of high dot identification detection precision, strong anti-fuzzy ability and the like, and is combined with the corner points (104) of the checkerboard unit (101) to improve the detection stability and precision of the calibration board (100).

Inventors:
WU LIHUA (CN)
LIU XIANZHUO (CN)
PANG MINJIAN (CN)
HUANG ZHIMING (CN)
WANG XIAOMENG (CN)
ZENG JIE (CN)
YANG HONGFEI (CN)
Application Number:
PCT/CN2020/090925
Publication Date:
September 30, 2021
Filing Date:
May 18, 2020
Export Citation:
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Assignee:
SHENZHEN ORBBEC TECH CO LTD (CN)
International Classes:
G06T7/80
Foreign References:
CN110599548A2019-12-20
CN110660107A2020-01-07
CN109186631A2019-01-11
CN109285194A2019-01-29
CN110570354A2019-12-13
US20190320166A12019-10-17
Attorney, Agent or Firm:
SHENZHEN HUNS INTELLECTUAL PROPERTY (CN)
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