Title:
IMAGE FEATURE REPEATABILITY MEASUREMENT METHOD AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/098697
Kind Code:
A1
Abstract:
An image feature repeatability measurement method and device. The method comprises: obtaining multiple images, and preprocessing the multiple images; obtaining a region satisfying a preset condition in each of the preprocessed multiple images, and marking the region in each image; performing standardization processing on each image, so that a grayscale value of each pixel in each image falls within a preset grayscale value arrange; extracting an image feature of the marked region, and obtaining multiple factor values related to the image feature; computing an overall consistency correlation coefficient (OCCC) value of the image feature according to the multiple factor values; and if the OCCC value is greater than a preset threshold, determining that the image has repeatability. The problem in the prior art of low accuracy in the assessment of the repeatability of an image feature performed by generally using a single factor value only is resolved.
Inventors:
WANG MENGQIAO (CN)
LI ZHICHENG (CN)
LI QIHUA (CN)
SUN QIUCHANG (CN)
SONG BOLIN (CN)
LI ZHICHENG (CN)
LI QIHUA (CN)
SUN QIUCHANG (CN)
SONG BOLIN (CN)
Application Number:
PCT/CN2016/108048
Publication Date:
June 07, 2018
Filing Date:
November 30, 2016
Export Citation:
Assignee:
SHENZHEN INST OF ADV TECH CAS (CN)
International Classes:
G06K9/54; G06T7/00
Foreign References:
| CN106778793A | 2017-05-31 | |||
| CN105931224A | 2016-09-07 | |||
| CN102208109A | 2011-10-05 | |||
| CN101669828A | 2010-03-17 | |||
| CN105261013A | 2016-01-20 | |||
| CN102722887A | 2012-10-10 | |||
| JP2015058355A | 2015-03-30 |
Attorney, Agent or Firm:
SHENZHEN ZHONGYI PATENT AND TRADEMARK OFFICE (CN)
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