A GPU-Based Framework of Photometric Uniformity for Multi-Projector Tiled Display

Yuan, Guodong; Qin, Kaihuai

A GPU-Based Framework of Photometric Uniformity for Multi-Projector Tiled Display

Files

077-083.pdf (284.42 KB)

Date

2007

Authors

Yuan, Guodong
Qin, Kaihuai

Publisher

The Eurographics Association

Abstract

In this paper, we firstly propose a partial-sampling scheme to measure the intensity transfer function of a projector. Secondly, we implement the computation of luminance surface by rendering a texture rectangle on GPU. Thirdly, we generate an unified index data for all projectors. And then we compute the masks of photometric correction using a GPU based on topological consistency. Finally we integrate the masks with a GPU-based photometric correction pipeline to achieve the photometric uniformity for multi-projector display. The GPU-based framework is a combination of the GPU-based computation and the GPU-based photometric correction pipeline, which removes the bottleneck of the computation of luminance surface, attenuation mask and black offset mask. It is shown by experimental results prove that the GPU-based framework is effective and efficient.

        @inproceedings{10.2312:EGVE/IPT_EGVE2007/077-083
,
booktitle = {Eurographics Symposium on Virtual Environments
},
editor = {Bernd Froehlich and Roland Blach and Robert van Liere
},
title = {{A GPU-Based Framework of Photometric Uniformity for Multi-Projector Tiled Display
}},
author = {Yuan, Guodong and 
Qin, Kaihuai
},
year = {2007
},
publisher = {The Eurographics Association
},
ISSN = {1727-530X
},
ISBN = {978-3-905674-02-6
},
DOI = {10.2312/EGVE/IPT_EGVE2007/077-083
}
}