激光扫描与雕刻集成系统的轮廓提取算法研究-计算机技术专业论文.docxVIP

IIAbstract II Abstract Laser scallnelbased on the principle of orrdcal u／angulation,which usmg double-CCD camera collecting the band oflaser line on the surface and send thern into the computer to get the accurate 3D coordinates of objeees surface to achieve surface shape of a di酬．Lntegrated system of scanning measurement and engraving process can be achieved with laser scam崦probe installed Oil the engraving machine,The laser scanniI】g and carvilag integrated system can be easily and quickly achieve an prototype data acquisition,and this integrated system can be significantly shorten product design cycles,reduce costs,improving production efficiency,and a：lSu陀the product quality．At present,more and mole enterprises performed the technology upgrades based on the exit堍CNC machine,耐百nal and installation laser scanning measl啦 on the basis of exiting CNC machine,this scheme m蛐the exiting equipment is not only havmg processing functions,but also can quickly get a prototype three-dimensional data．The combination ofdi则design and manufacture making the cycle time ofenterprise products from the prototype to the shape in few days．Meet the individualized production of enterprise,and enhance the market competitiveness ofenterpdses． Due to a variety ofphysical factors ofthe acquisition procedure,p)int sets always are prone to various kinds of undesirable noise which will have adverse impact Oil accuracy ofpo硫data, ,SO its necessary to remove the eff嘲s cattsed by noises． For the inadequacy of existiI】g poUsrung algorithm,this paper studies contour exWdction algorithm in the integration of laser scannil唱and engravillg system and main contribution include： 1．Analysis the noise ofscanning data effect 011 the efficiency and quality ofengraving,and points out the impact of existing smoothing algorithms,puts forward”first extract the contour information,then smoothing’design ideas． 2．With mw．coltmm alternating and automatically identify the object contour information base on the geome