Image stable characteristic point extracting method and device

The invention discloses an image stable characteristic point extracting method and device, and relates to the field of image processing and is capable of quantizing the stability of image characteristic points. The method comprises the following steps of: filtering read digital image dot matrix data...

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Bibliographic Details
Main Authors LI XIAOLONG, QI WENFA, CHEN XUDONG, WANG GAOYANG, YANG BIN
Format Patent
LanguageChinese
English
Published 15.06.2011
Subjects
CALCULATING
COMPUTING
COUNTING
HANDLING RECORD CARRIERS
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
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Summary:The invention discloses an image stable characteristic point extracting method and device, and relates to the field of image processing and is capable of quantizing the stability of image characteristic points. The method comprises the following steps of: filtering read digital image dot matrix data and constructing an image dimension space; obtaining a point set of image characteristic points with unchanged dimensions through region threshold value control; and calculating stable factors of the image characteristic points, and obtaining the point set of the image characteristic points through threshold value control according to the stable factors of the image characteristic points. The image stable characteristic point extracting method and device are applied to image recognition and image characteristic extraction.
Bibliography:Application Number: CN20091242429