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Optimization of Free Viewpoint Interpolation by Applying Adaptive Depth Plane Distributions in Plane Sweeping - A Histogram-based Approach to a Non-uniform Plane Distribution

Topics: Design and Implementation of Signal Processing Systems; Digital Audio and Video Broadcasting; Image and Video Processing, Compression and Segmentation; Multidimensional Signal Processing; Multimodal Signal Processing

Authors: Patrik Goorts 1 ; Steven Maesen 1 ; Maarten Dumont 1 ; Sammy Rogmans 2 and Philippe Bekaert 1

Affiliations: 1 Hasselt University - tUL - iMinds, Belgium ; 2 Expertise Centre for Digital Media and Hasselt University, Belgium

ISBN: 978-989-8565-74-7

Keyword(s): Plane Sweep, Free Viewpoint Interpolation, Cumulative Histogram, Optimization, Non-uniform Distribution.

Related Ontology Subjects/Areas/Topics: Design and Implementation of Signal Processing Systems ; Digital Audio and Video Broadcasting ; Image and Video Processing, Compression and Segmentation ; Multidimensional Signal Processing ; Multimedia ; Multimedia and Communications ; Multimedia Signal Processing ; Multimedia Systems and Applications ; Multimodal Signal Processing ; Telecommunications

Abstract: In this paper, we present a system to increase performance of plane sweeping for free viewpoint interpolation. Typical plane sweeping approaches incorporate a uniform depth plane distribution to investigate different depth hypotheses to generate a depth map, used in novel camera viewpoint generation. When the scene consists of a sparse number of objects, some depth hypotheses do not contain objects and can cause noise and wasted computational power. Therefore, we propose a method to adapt the plane distribution to increase the quality of the depth map around objects and to reduce computational power waste by reducing the number of planes in empty spaces in the scene. First, we generate the cumulative histogram of the previous frame in a temporal sequence of images. Next, we determine a new normalized depth for every depth plane by analyzing the cumulative histogram. Steep sections of the cumulative histogram will result in a dense local distribution of planes; a flat section will resu lt in a sparse distribution. The results, performed on controlled and on real images, demonstrate the effectiveness of the method over a uniform distribution and allows a lower number of depth planes, and thus a more performant processing, for the same quality. (More)

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Paper citation in several formats:
Goorts P., Maesen S., Dumont M., Rogmans S. and Bekaert P. (2013). Optimization of Free Viewpoint Interpolation by Applying Adaptive Depth Plane Distributions in Plane Sweeping - A Histogram-based Approach to a Non-uniform Plane Distribution.In Proceedings of the 10th International Conference on Signal Processing and Multimedia Applications and 10th International Conference on Wireless Information Networks and Systems - Volume 1: SIGMAP, (ICETE 2013) ISBN 978-989-8565-74-7, pages 7-15. DOI: 10.5220/0004524700070015

@conference{sigmap13,
author={Patrik Goorts and Steven Maesen and Maarten Dumont and Sammy Rogmans and Philippe Bekaert},
title={Optimization of Free Viewpoint Interpolation by Applying Adaptive Depth Plane Distributions in Plane Sweeping - A Histogram-based Approach to a Non-uniform Plane Distribution},
booktitle={Proceedings of the 10th International Conference on Signal Processing and Multimedia Applications and 10th International Conference on Wireless Information Networks and Systems - Volume 1: SIGMAP, (ICETE 2013)},
year={2013},
pages={7-15},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0004524700070015},
isbn={978-989-8565-74-7},
}

TY - CONF

JO - Proceedings of the 10th International Conference on Signal Processing and Multimedia Applications and 10th International Conference on Wireless Information Networks and Systems - Volume 1: SIGMAP, (ICETE 2013)
TI - Optimization of Free Viewpoint Interpolation by Applying Adaptive Depth Plane Distributions in Plane Sweeping - A Histogram-based Approach to a Non-uniform Plane Distribution
SN - 978-989-8565-74-7
AU - Goorts P.
AU - Maesen S.
AU - Dumont M.
AU - Rogmans S.
AU - Bekaert P.
PY - 2013
SP - 7
EP - 15
DO - 10.5220/0004524700070015

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