室内场景动态光照在线采集  

Online Dynamic Illumination Capturing of Indoor Scenes

作　　者：袁霞 张金沙[1] 罗天[1] YUAN Xia;ZHANG Jin-sha;LUO Tian(Chengdu Sobey Digital Technology Co.,Ltd.,Chengdu 610065)

机构地区：[1]成都索贝数码科技股份有限公司,成都610065

出　　处：《现代计算机》2020年第33期58-63,69,共7页Modern Computer

摘　　要：获取真实场景光照,生成具有高度真实感的虚实融合画面,是解决增强现实光照一致性问题的关键。然而目前已有光照估计方法大多针对光照不发生变化的场景,当处理光照动态变化的场景时将失效。针对室内场景展开动态光照在线估计研究,实现在场景光照发生变化时虚实场景的高质量融合。为此,首先设计并搭建一套场景动态光照采集设备,并基于该设备开发相应光照采集方法,利用在线阶段采集的LDR图像实时更新离线阶段捕获的光照信息,从而实现对于场景高质量动态光照的估计。该方法获取的光照信息既包含场景直接光源,又包含间接环境光,可生成具有较高真实感的虚实融合结果。实验结果验证该方法的有效性。Obtaining real scene lighting and generating a highly realistic fusion of virtual and real images is the key to solving the problem of augment⁃ed reality lighting consistency.However,most of the existing lighting estimation methods are for scenes where the lighting does not change,when dealing with scenes with dynamic changes in lighting Will be invalidated.This article conducts online dynamic lighting estimation re⁃search for indoor scenes to achieve high-quality fusion of virtual and real scenes when the scene lighting changes.To this end,this article first designs and builds a set of scene dynamic lighting acquisition equipment,and develops based on the equipment The corresponding lighting acquisition method uses the LDR images collected in the online stage to update the lighting information captured in the offline stage in real time,so as to realize the estimation of the high-quality dynamic lighting of the scene.The lighting information obtained by the method in this paper includes both the direct light source of the scene and the indirect ambient light.It can generate virtual and real fusion results with a high sense of reality.The experimental results verify the effectiveness of this method.

关 键 词：动态光照 室内场景 在线采集 增强现实 光照一致性 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]