Shape from inconsistent silhouette for free viewpoint video

In this paper we present an efficient image-based rendering algorithm that obtains novel images from a set of views of the scene of interest. The approach described uses silhouette image data to compute the Visual Hull, the largest volume that is compatible with the silhouettes that delimit the obje...

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Bibliographic Details
Main Authors: Landabaso, J.-L., Lizcano, L., Pardas, M.
Format: Conference Proceeding
Language:English
Subjects:
Cameras
Free viewpoint video
Image reconstruction
image-based rendering
inconsistency
Layout
Optical distortion
Quantization
Ray tracing
Rendering (computer graphics)
Research and development
Shape
shape from silhouette
Teleconferencing
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Description
Summary:In this paper we present an efficient image-based rendering algorithm that obtains novel images from a set of views of the scene of interest. The approach described uses silhouette image data to compute the Visual Hull, the largest volume that is compatible with the silhouettes that delimit the objects of interest. Since the Visual Hull is not explicitly computed, this approach does not suffer from the quantization artifacts of volumetric approaches. In contrast to previous works, we explore how detection errors in the silhouettes affect the novel rendered view and propose a method to detect errors in the original silhouettes based on the consistency principle that states that the projection of the Visual Hull should exactly correspond with original silhouettes.
ISSN:1522-4880
2381-8549
DOI:10.1109/ICIP.2008.4711729