A novel methodology for photometric compensation of projection display on patterned screen

• 作 者: 邹文海 徐海松 Dusik Park
• 机 构: State Key Laboratory of Modern Optical Instrumentation,Zhejiang University,Hangzhou 310027,Computing
• 出 处: Chinese Optics Letters
• 发表日期: 2008年07期
• 关键词: projection compensation screen modulator perfect automatically artifacts camera

We propose a novel methodology based on the projector-camera (ProCam) system to address the pho- tometric compensation issue for the projection display on the patterned screen.The patterned screen is treated as the combination of a perfect white screen and a color modulator.The perfect white screen is used to automatically and accurately characterize the ProCam system offline using the polynomial model, and the parameters of the color modulator can be efficiently recovered by employing only two gray images based on the linear reflectance model.The experimental results show that the color artifacts of the display image can be greatly improved with this methodology,which demonstrates its feasibility and validity in the photometric compensation.

We propose a novel methodology based on the projector-camera (ProCam) system to address the pho- tometric compensation issue for the projection display on the patterned screen. The patterned screen is treated as the combination of a perfect white screen and a color modulator. The perfect white screen is used to automatically and accurately characterize the ProCam system offline using the polynomial model, and the parameters of the color modulator can be efficiently recovered by employing only two gray images based on the linear reflectance model. The experimental results show the the color artifacts of the display image can be greatly improved with this methodology, which demonstrates its feasibility and validity in the photometric compensation.