Improving brightness for a multi-projector display considering image content

Hee Won Lee, Byung Uk Lee

Research output: Contribution to journalConference articlepeer-review


Very large-area multi-projector display systems have wide applications since they provide immersive environments. The brightness of projectors in a system is not identical due to the design and aging of the bulbs, and optical properties of the projectors. Therefore, it is imperative to coordinate the brightness level and characteristics of projectors in the system. This issue has been addressed by many researchers. However, the state of the art solution has considered the characteristic of the projector's brightness only. In this paper, we propose to take into account the dynamic range of the image content. We expand the dynamic range of the input image to utilize the maximum possible brightness of a projector while satisfying the spatial smoothness constraint. The proposed method achieves a seamless multi-display with impressive improvement of the brightness level.

Original languageEnglish
Pages (from-to)70-78
Number of pages9
JournalLecture Notes in Computer Science
Volume4292 LNCS - II
StatePublished - 2006
Event2nd International Symposium on Visual Computing, ISVC 2006 - Lake Tahoe, NV, United States
Duration: 6 Nov 20068 Nov 2006


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