Edge and motion-adaptive median filtering for multi-view depth map enhancement
dc.contributor.author | Ekmekcioglu, Erhan | en_GB |
dc.contributor.author | Velisavljević, Vladan | en_GB |
dc.contributor.author | Worrall, Stewart T. | en_GB |
dc.date.accessioned | 2013-05-22T11:17:05Z | |
dc.date.available | 2013-05-22T11:17:05Z | |
dc.date.issued | 2009 | |
dc.identifier.citation | Ekmekcioglu, E., Velisavljevic, V. and Worrall, S.T. (2009) 'Edge and motion-adaptive median filtering for multi-view depth map enhancement', Picture Coding Symposium (PCS 2009), Chicago, IL, USA, 6-8 May. Chicago: IEEE, pp.1-4. | en_GB |
dc.identifier.isbn | 978-1-4244-4594-3 | |
dc.identifier.doi | 10.1109/PCS.2009.5167415 | |
dc.identifier.uri | http://hdl.handle.net/10547/292571 | |
dc.description.abstract | The authors present a novel multi-view depth map enhancement method deployed as a post-processing of initially estimated depth maps, which are incoherent in the temporal and inter-view dimensions. The proposed method is based on edge and motion-adaptive median filtering and allows for an improved quality of virtual view synthesis. To enforce the spatial, temporal and inter-view coherence in the multiview depth maps, the median filtering is applied to 4-dimensional windows that consist of the spatially neighbor depth map values taken at different viewpoints and time instants. These windows have locally adaptive shapes in a presence of edges or motion to preserve sharpness and realistic rendering. We show that our enhancement method leads to a reduction of a coding bit-rate required for representation of the depth maps and also to a gain in the quality of synthesized views at an arbitrary virtual viewpoint. At the same time, the method carries a low additional computational complexity. | |
dc.language.iso | en | en |
dc.publisher | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | en_GB |
dc.relation.url | http://ieeexplore.ieee.org/lpdocs/epic03/wrapper.htm?arnumber=5167415 | en_GB |
dc.subject | computational complexity | en_GB |
dc.subject | image colour analysis | en_GB |
dc.subject | image enhancement | en_GB |
dc.subject | free viewpoint video | en_GB |
dc.subject | multiview coding | en_GB |
dc.title | Edge and motion-adaptive median filtering for multi-view depth map enhancement | en |
dc.type | Conference papers, meetings and proceedings | en |
html.description.abstract | The authors present a novel multi-view depth map enhancement method deployed as a post-processing of initially estimated depth maps, which are incoherent in the temporal and inter-view dimensions. The proposed method is based on edge and motion-adaptive median filtering and allows for an improved quality of virtual view synthesis. To enforce the spatial, temporal and inter-view coherence in the multiview depth maps, the median filtering is applied to 4-dimensional windows that consist of the spatially neighbor depth map values taken at different viewpoints and time instants. These windows have locally adaptive shapes in a presence of edges or motion to preserve sharpness and realistic rendering. We show that our enhancement method leads to a reduction of a coding bit-rate required for representation of the depth maps and also to a gain in the quality of synthesized views at an arbitrary virtual viewpoint. At the same time, the method carries a low additional computational complexity. |
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