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Proceedings Paper

A locally content-dependent filter for inter-perspective anti-aliasing
Author(s): Mårten Sjöström; Sylvain Tourancheau; Xusheng Wang; Roger Olsson
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Paper Abstract

Presentations on multiview and lightfield displays have become increasingly popular. The restricted number of views implies an unsmooth transition between views if objects with sharp edges are far from the display plane. The phenomenon is explained by inter-perspective aliasing. This is undesirable in applications where a correct perception of the scene is required, such as in science and medicine. Anti-aliasing filters have been proposed in the literature, and are defined according to the minimum and maximum depth present in the scene. We suggest a method that subdivides the ray-space and adjusts the anti-aliasing filter to the scene contents locally. We further propose new filter kernels based on the ray space frequency domain that assures no aliasing, yet keeping maximum information unaltered. The proposed method outperforms filters of earlier works. Different filter kernels are compared. Details of the output are sharper using a proposed filter kernel, which also preserves the most information.

Paper Details

Date Published: 30 January 2012
PDF: 10 pages
Proc. SPIE 8290, Three-Dimensional Image Processing (3DIP) and Applications II, 829006 (30 January 2012);
Show Author Affiliations
Mårten Sjöström, Mid Sweden Univ. (Sweden)
Sylvain Tourancheau, Mid Sweden Univ. (Sweden)
Xusheng Wang, Mid Sweden Univ. (Sweden)
Roger Olsson, Mid Sweden Univ. (Sweden)

Published in SPIE Proceedings Vol. 8290:
Three-Dimensional Image Processing (3DIP) and Applications II
Atilla M. Baskurt; Robert Sitnik, Editor(s)

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