基于条纹调制度的多投影显示融合方法  

A Fusion Method for Multi-Projector Display Based on Fringe Modulation

作　　者：肖朝[1] 苏显渝[2] 陈锋[1] 钟敏[1] 

机构地区：[1]成都信息工程大学光电技术学院,四川成都610225 [2]四川大学电子信息学院,四川成都610064

出　　处：《光学学报》2016年第4期174-181,共8页Acta Optica Sinica

基　　金：国家重大科学仪器设备开发专项(2013YQ490879);成都信息工程大学科研基金(KYTZ201516)

摘　　要：为了提升多投影显示系统的亮度融合速度,提出了一种基于结构光条纹调制度测量的多投影显示融合方法。该方法利用相机拍摄投影机投影在显示墙上的结构光条纹,计算出每个投影通道的调制度信息。同时,利用结构光条纹的相位信息构建投影机与相机间的亚像素级映射关系,并由此得出投影机上每个像素点在显示墙上的调制度数据。将该调制度数据与边缘融合结果相结合可得出每个投影通道的亚像素级融合模板。该方法具有操作简便、测量速度快、测量结果不受环境光干扰等优点,应用领域非常广泛。理论分析和真实场景实验都证明该方法的有效性和可行性。In order to improve the light fusion speed in multi-projector display system, a multi-projector display fusion method based on modulation information of structured light fringe is proposed. In this method, camera is used to capture the structured light fringes on the display wall which are projected by projectors, and then the modulation information for every projection channel is calculated. Meanwhile, the sub-pixel mapping relationship between projector and camera can be built by the phase of structured light fringes. With the above relationship, the modulation value for every pixel on projector can be obtained. Using both the modulation value and the edge blending results, we can generate the final sub-pixel fusion mask for each projection channel. The proposed method has the advantages of convenient operation, fast measurement speed and free of ambient light interference, and it has a wide application field. The theoretical analysis and real scene experiments both validate the effectiveness and feasibility of the proposed scheme.

关 键 词：测量 多投影显示融合 调制度分析 结构光投影 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]