Camera Based Evaluation of Photometric Compensation Methods on Multi-Projector Displays (WP-P9)

Author(s) : Aditi Majumder (University of California, Irvine, USA)

Abstract : An important problem in achieving seamless multi-projector displays is the photometric (luminance) variation across the display. Currently, evaluation of the improvement in the quality of the imagery achieved by applying different photometric correction methods and a comparison between them is done by a subjective human user. In this paper, we present a camera-based method for relative evaluation of the luminance properties of the imagery on multi-projector displays, both before correction and after correction using different compensation techniques. To the best of our knowledge, this is the first camera-based method designed to evaluated the different photometric correction methods on a multi-projector display. We show that using our simple and automatic evaluation scheme the optimal photometric compensation parameters for a multi-projector display can be identified.

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