The Application of Homography in Line Laser Profilometry

• Main Authors: Cheng-He Lee, 李承和
• Other Authors: Ji-Chun Lee
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/87436853005040559394

碩士 === 國立中興大學 === 機械工程學系所 === 103 === The purposeof this studydevelop a novel non-contact measurement system of three-dimensional and calibration.Line laser triangulation measurement method which architecture is line lasers, cameras, measurement.This method can utilize thetriangular geometry, through digital images to measure the objects in space coordinate information.First, we set up a camera calibration model to get the cameracoordinates and image coordinates and world coordinates betweenrelationship of coordinate conversion.Again we have to make line laser tothin and filtering, finally, we directly use the intersecting planes of measuring object planeand the line laser projection plane betweenthe digital image plane geometry translation relationship,to obtain projection relationship of the two planesbyHomography, complete a simple and efficient calibration procedures to measure the contours of three-dimensional objects.