Shadow removal of projected imagery by occluder shape measurement in a multiple overlapping projection system
| Autor: | Kosuke Sato, Daisuke Iwai, Momoyo Nagase |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Synthetic aperture radar
Graphical projection business.industry Computer science Oblique projection ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Computer Graphics and Computer-Aided Design GeneralLiterature_MISCELLANEOUS Visual hull Human-Computer Interaction Projection (mathematics) Shadow Computer vision Artificial intelligence business Shadow mapping Image resolution Software ComputingMethodologies_COMPUTERGRAPHICS |
| Zdroj: | Virtual Reality. 18:245-254 |
| ISSN: | 1434-9957 1359-4338 |
| DOI: | 10.1007/s10055-014-0250-4 |
| Popis: | This paper presents a shadow removal technique for a multiple overlapping projection system. In particular, this paper deals with situations where cameras cannot be placed between the occluder and projection surface. We apply a synthetic aperture capturing technique to estimate the appearance of the projection surface, and a visual hull reconstruction technique to measure the shape of the occluder. Once the shape is acquired, shadow regions on the surface can be estimated. The proposed shadow removal technique allows users to balance between the following two criteria: the likelihood of new shadow emergence and the spatial resolution of the projected results. Through a real projection experiment, we evaluate the proposed shadow removal technique |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink