基于三维扫描的激光演示动画多通道拼接方法  

Multi channel stitching method of laser demonstration animation based on3D scanning

作　　者：李睿文[1] LI Ruiwen(Jiangsu Open University,Nanjing 210000,China)

机构地区：[1]江苏开放大学,南京210000

出　　处：《激光杂志》2022年第5期192-196,共5页Laser Journal

基　　金：江苏省自然科学基金(No.BK20180747)。

摘　　要：常规激光演示动画多通道拼接方法,演示设备投射图形畸变量较大,导致通道重叠区域至显示区域色彩衰减率较高。针对这一问题,研究基于三维扫描的激光演示动画多通道拼接方法。三维激光扫描动画图形,利用激光发射器,投射三维图形至演示幕布,计算激光发射器内参矩阵,二次曲线近似拟合图形畸变量,几何校正投射图形,百分比量混合三原色输入通道,校正投射图形颜色区域,通过融合函数赋值蒙板像素值,融合蒙板和多通道投射图形,实现无缝拼接。设置对比实验,结果表明,设计方法相比常规方法,针对重叠区域中心点至显示区域中心点演示区域,降低了亮度、对比度、饱和的衰减率,保证了激光演示动画整体色彩一致性。In the conventional multi-channel splicing method of laser demonstration animation,the distortion of the projection graphics of the demonstration equipment is large,which leads to the high color attenuation rate from the channel overlapping area to the display area.In order to solve this problem,the multi-channel splicing method of laser demonstration animation based on 3D scanning is studied.Three dimensional laser scanning animation graphics,using laser emitter,project three-dimensional graphics to the demonstration screen,calculate the internal parameter matrix of laser emitter,conic approximate fitting graphics distortion,geometric correction projection graphics,percentage mixing three primary color input channel,correct the color area of projection graphics,assign the mask pixel value through the fusion function,fuse the mask and multi-channel projection graphics Shape,seamless splicing.Set up contrast experiments,the results show that,compared with the conventional method,the design method reduces the brightness,contrast,saturation attenuation rate,and ensures the overall color consistency of laser demonstration animation.

关 键 词：三维激光扫描 激光投射 几何校正 颜色校正 激光通道融合 

分 类 号：TN248.2[电子电信—物理电子学]