Method, device and system for measuring elongation at break

The invention provides a method, a device and a system for measuring elongation at break. The method comprises the following steps: extracting a first image from a pre-obtained target video; extracting a plurality of first target points and a plurality of second target points from the first image, a...

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Bibliographic Details
Main Authors TANG QINGQUAN, ZHANG GEYOU, HU DAN, ZENG KE, GONG JUN, LIU KAI
Format Patent
LanguageChinese
English
Published 29.10.2021
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 provides a method, a device and a system for measuring elongation at break. The method comprises the following steps: extracting a first image from a pre-obtained target video; extracting a plurality of first target points and a plurality of second target points from the first image, and performing feature matching on the plurality of first target points and the plurality of second target points to obtain a first stable feature point and a second stable feature point; extracting a second image from the target video; determining a first stable feature point and a second stable feature point in the second image; and based on the three-dimensional coordinates of the first stable feature point and the second stable feature point in the first image and the three-dimensional coordinates of the first stable feature point and the second stable feature point in the second image, determining the elongation at break of the tested sample. According to the method, the accuracy and the automation degree of el
Bibliography:Application Number: CN202110811306