基于单目摄像头投影仪自动校正方法  

Automatic Correction Method Based on Monocular Camera Projector

作　　者：张恩利 于洋 张志琪 余聪聪 ZHANG Eni;YU Yang;ZHANG Zhiqi;YU Congcong(Shenzhen Skyworth Digital Technology Co.,Ltd.,Shenzhen 518057,China)

机构地区：[1]深圳创维数字技术有限公司,广东深圳518057

出　　处：《现代信息科技》2024年第23期42-47,共6页Modern Information Technology

摘　　要：现有投影仪在梯形校正技术中,同时实现翻滚角、俯仰角以及偏航角三个方向下梯形校正需要使用双目摄像头或单目摄像头配合距离传感器以及陀螺仪传感器实现,且产生了成本上升、使用复杂性提升、可靠性降低等问题。现研究一种基于单目摄像头自动梯形矫正方法,实现无须人工干预的全自动图像梯形校正。通过引入几何光学建模,辅助计算投影面上的真实形变四边形投影图像以供投影仪图像校正。实验结果表明,该方法能以低廉的硬件成本,简单的计算方法完成投影仪的自动校正。For the existing projector in the trapezoidal correction technology,realizing the trapezoidal correction in the three directions of roll angle,pitch angle and yaw angle simultaneously requires the use of a binocular camera or a monocular camera combined with a distance sensor and a gyroscope sensor.And this leads to problems such as increased costs,increased complexity in use,and reduced reliability.Now,an automatic trapezoidal correction method based on a monocular camera is studied to realize fully automatic image trapezoidal correction without human intervention.By introducing geometrical optical modeling,it assists to calculate the real deformed quadrilateral projection images on the projection plane for the correction of the projector images.The experimental results show that this method can accomplish the automatic correction of the projector with low hardware costs and a simple calculation method.

关 键 词：投影机 单目摄像头 几何光学建模 图像处理 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术] TN946.1[自动化与计算机技术—计算机科学与技术]