Hotspot mitigation in the StarCAVE
Proceedings of SPIE(2010)
摘要
Rear-projected screens such as those in Digital Light Projection (DLP) televisions suffer from an image quality problem called hot spotting, where the image is brightest at a point dependent on the viewing angle. In rear-projected mulit-screen configurations such as the StarCAVE at Calit2, this causes discontinuities in brightness at the edges where screens meet, and thus in the 3D image perceived by the user. In the StarCAVE we know the viewer's position in 3D space and we have programmable graphics hardware, so we can mitigate this effect by performing post-processing in the inverse of the pattern, yielding a homogenous image at the output. Our implementation improves brightness homogeneity by a factor of 4 while decreasing frame rate by only 1-3 fps.
更多查看译文
关键词
3d imaging,visualization,digital light processing,image quality,computer hardware,hot spot
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络