Progress review of structural displacement measurement technology and application based on computer vision
With the advantages of non-contact,no additional mass,high spatial resolution,short measurement cycle,and easy testing,the structural displacement measurement technology based on computer vision has attracted the attention and research of many scholars,and has produced numerous achievement.Some of these achievements have been successfully applied in the mechanical testing of rocket engine,frame,pipeline and other structures,as well as in the state assessment and health monitoring of large engineering structures.In order to promote the better application of computer vision-based structural displacement measurement technology in liquid rocket motor engineering,recent advances in technology and practical engineering applications of computer vision-based structural displacement measurement are summarized.Firstly,the significant advantages of computer vision-based structural displacement measurement over other measurement methods are outlined.Secondly,the computer vision-based structural displacement measurement technology is summarized and outlined.On this basis,the application of computer vision-based structural displacement measurement technology in practical engineering is introduced and the actual measurement results are outlined.Finally,the problems faced in the practical application of computer vision-based structural displacement measurement are summarized,and the future of computer vision-based structural displacement measurement technology is prospected.