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Title: Efficient edge, motion and depth-range adaptive processing for enhancement of multi-view depth map sequences
Authors: Ekmekcioglu, Erhan
Velisavljevic, Vladan
Worrall, Stewart T.
Keywords: Depth estimation
Free viewpoint video
Multi-view coding
Multi-view depth map
Multi-view video
Issue Date: 2009
Publisher: © IEEE
Citation: EKMEKCIOGLU, E., VELISAVLJEVIC, V. and WORRALL, S., 2009. Efficient edge, motion and depth-range adaptive processing for enhancement of multi-view depth map sequences. IN: Proceedings of 2009 16th IEEE International Conference on Image Processing (ICIP 2009), Cairo, Egypt, 7-12 November 2009, pp.3537-3540.
Abstract: We present a novel and efficient multi-view depth map enhancement method proposed as a post-processing of initially estimated depth maps. The proposed method is based on edge, motion and scene depth-range adaptive median filtering and allows for an improved quality of virtual view synthesis. To enforce the spatial, temporal and inter-view coherence in the multi-view depth maps, the median filtering is applied to 4-dimensional windows that consist of the spatially neighboring depth map values taken at different viewpoints and time instants. A fast iterative block segmentation approach is adopted to adaptively shrink these windows in the presence of edges and motion for preservation of sharpness and realistic rendering and for improvement of the compression efficiency. We show that our enhancement method leads to a reduction of the coding bit-rate required for representation of the depth maps and also leads to a gain in the quality of synthesized views at arbitrary virtual viewpoints.
Description: Closed access.
Sponsor: This work was in part developed within VISNET II, a European Network of Excellence (http://www.visnetnoe.org), funded under the European Commission IST FP6 programme.
Version: Published
DOI: 10.1109/ICIP.2009.5414087
URI: https://dspace.lboro.ac.uk/2134/22792
Publisher Link: http://dx.doi.org/10.1109/ICIP.2009.5414087
ISBN: 1424456533
ISSN: 1522-4880
Appears in Collections:Closed Access (Loughborough University London)

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