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- W2139852668 abstract "Two main problems for front projection systems when a user appears between a screen and a projector are 1) shadows being cast on a screen and 2) the user being illuminated due to undesirable strong projection light. To solve these problems, it is necessary to know which projectors are occluded by a user and cast a shadow. We propose a method that suppresses occluder light from a single image based on the fact that the darkness of shadows on a screen is differentiated when projectors have different luminance. Contrary to previous approaches, our method utilizes different alpha masks for each projector to contrast shadows on a screen. This enables us to clarify the relationship between the shadow on a screen and the occluded projector. Additionally, by differentiating all projector luminances, our method makes it possible to discriminate shadows even when some shadow regions overlap on a screen. We implemented the proposed method into a three-projector system to demonstrate its effectiveness." @default.
- W2139852668 created "2016-06-24" @default.
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- W2139852668 date "2010-06-01" @default.
- W2139852668 modified "2023-09-23" @default.
- W2139852668 title "Contrasting shadow for occluder light suppression from one-shot image" @default.
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- W2139852668 doi "https://doi.org/10.1109/cvprw.2010.5544603" @default.
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