Variable refractive index in environment matte

Variable refractive index in environment matte

Environment matting and compositing is a technique to extract a foreground object, including color, opacity, reflective and refractive properties, from a real-world scene, and synthesize new images by placing it into new environments. The description of the captured object is named environment matte...

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Veröffentlicht in:Journal of Zhejiang University. A. Science 2006-07, Vol.7 (7), p.1160-1167
Hauptverfasser: Zhao, Ming-tian, Xiao, Shuang-jiu, Yang, Xu-bo, Ma, Li-zhuang
Format: Artikel
Sprache:eng
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图象处理
折射率
环境图
计算机
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container_issue 7
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container_title Journal of Zhejiang University. A. Science
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creator Zhao, Ming-tian
Xiao, Shuang-jiu
Yang, Xu-bo
Ma, Li-zhuang
description Environment matting and compositing is a technique to extract a foreground object, including color, opacity, reflective and refractive properties, from a real-world scene, and synthesize new images by placing it into new environments. The description of the captured object is named environment matte. Recent matting and compositing techniques can produce quite realistic images for objects with complex optical properties. This paper presents an approximate method to transform the matte by simulating variation of the foreground object＇s refractive index. Our algorithms can deal with achromatous-and-transparent objects and the experimental results are visually acceptable. Our idea and method can be applied to produce some special video effects, which could be very useful in film making, compared with the extreme difficulty of physically changing an object＇s refractive index.
doi_str_mv 10.1631/jzus.2006.A1160
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source EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection; SpringerLink Journals - AutoHoldings
subjects 图象处理
折射率
环境图
计算机
title Variable refractive index in environment matte
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