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Proceedings Paper

Real-time depth image-based rendering with layered dis-occlusion compensation and aliasing-free composition
Author(s): Sergey Smirnov; Atanas Gotchev
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Paper Abstract

Depth Image-based Rendering (DIBR) is a popular view synthesis technique which utilizes the RGB+D image format, also referred to as view-plus-depth scene representation. Classical DIBR is prone to dis-occlusion artefacts, caused by the lack of information in areas behind foreground objects, which appear visible in the synthesized images. A number of recently proposed compensation techniques have addressed the problem of hole filling. However, their computational complexity does not allow for real-time view synthesis and may require additional user input. In this work, we propose a hole-compensation technique, which works fully automatically and in a perceptually-correct manner. The proposed technique applies a two-layer model of the given RGB+D imagery, which is specifically tailored for rendering with free viewpoint selection. The main two components of the proposed technique are an adaptive layering of depth into relative 'foreground' and 'background' layers to be rendered separately and an additional blending filtering aimed at creating a blending function for aliasing cancellation during the process of view composition. The proposed real-time implementation turns ordinary view-plus-depth images to true 3D scene representations, which allow visualization in the y-around manner.

Paper Details

Date Published: 16 March 2015
PDF: 11 pages
Proc. SPIE 9399, Image Processing: Algorithms and Systems XIII, 93990T (16 March 2015); doi: 10.1117/12.2086895
Show Author Affiliations
Sergey Smirnov, Tampere Univ. of Technology (Finland)
Atanas Gotchev, Tampere Univ. of Technology (Finland)

Published in SPIE Proceedings Vol. 9399:
Image Processing: Algorithms and Systems XIII
Karen O. Egiazarian; Sos S. Agaian; Atanas P. Gotchev, Editor(s)

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