Publication
Intra Predictive Depth Map Coding Using Flexible Block Partitioning
datacite.subject.fos | Engenharia e Tecnologia::Engenharia Eletrotécnica, Eletrónica e Informática | |
datacite.subject.sdg | 09:Indústria, Inovação e Infraestruturas | |
dc.contributor.author | Lucas, Luis F. R. | |
dc.contributor.author | Wegner, Krzysztof | |
dc.contributor.author | M. M. Rodrigues, Nuno | |
dc.contributor.author | Pagliari, Carla L. | |
dc.contributor.author | Silva, Eduardo A. B. da | |
dc.contributor.author | Faria, Sergio | |
dc.date.accessioned | 2025-06-17T17:30:25Z | |
dc.date.available | 2025-06-17T17:30:25Z | |
dc.date.issued | 2015-07 | |
dc.description | Article number - 7160749 | |
dc.description.abstract | A complete encoding solution for efficient intra-based depth map compression is proposed in this paper. The algorithm, denominated predictive depth coding (PDC), was specifically developed to efficiently represent the characteristics of depth maps, mostly composed by smooth areas delimited by sharp edges. At its core, PDC involves a directional intra prediction framework and a straightforward residue coding method, combined with an optimized flexible block partitioning scheme. In order to improve the algorithm in the presence of depth edges that cannot be efficiently predicted by the directional modes, a constrained depth modeling mode, based on explicit edge representation, was developed. For residue coding, a simple and low complexity approach was investigated, using constant and linear residue modeling, depending on the prediction mode. The performance of the proposed intra depth map coding approach was evaluated based on the quality of the synthesized views using the encoded depth maps and original texture views. The experimental tests based on all intra configuration demonstrated the superior rate-distortion performance of PDC, with average bitrate savings of 6%, when compared with the current state-of-the-art intra depth map coding solution present in the 3D extension of a high-efficiency video coding (3D-HEVC) standard. By using view synthesis optimization in both PDC and 3D-HEVC encoders, the average bitrate savings increase to 14.3%. This suggests that the proposed method, without using transform-based residue coding, is an efficient alternative to the current 3D-HEVC algorithm for intra depth map coding. | eng |
dc.description.sponsorship | This work was supported by the Fundação para a Ciência e a Tecnologia, Portugal, under grant SFRH/BD/79553/2011, and by the CAPES/Pro-Defesa under grant number 23038.009094/2013-83. | |
dc.identifier.citation | L. F. R. Lucas, K. Wegner, N. M. M. Rodrigues, C. L. Pagliari, E. A. B. da Silva and S. M. M. de Faria, "Intra Predictive Depth Map Coding Using Flexible Block Partitioning," in IEEE Transactions on Image Processing, vol. 24, no. 11, pp. 4055-4068, Nov. 2015, doi: 10.1109/TIP.2015.2456509. | |
dc.identifier.doi | 10.1109/tip.2015.2456509 | |
dc.identifier.issn | 1057-7149 | |
dc.identifier.issn | 1941-0042 | |
dc.identifier.uri | http://hdl.handle.net/10400.8/13312 | |
dc.language.iso | eng | |
dc.peerreviewed | yes | |
dc.publisher | IEEE | |
dc.relation | IMPLICIT INTRA AND INTER PREDICTION FOR VIDEO CODING | |
dc.relation.hasversion | https://ieeexplore.ieee.org/document/7160749 | |
dc.relation.ispartof | IEEE Transactions on Image Processing | |
dc.rights.uri | N/A | |
dc.subject | 3D-HEVC | |
dc.subject | Depth map coding | |
dc.subject | depth modelling | |
dc.subject | directional prediction | |
dc.subject | flexible block partitioning | |
dc.subject | intra predictive coding | |
dc.subject | linear fitting | |
dc.subject | View synthesis | |
dc.title | Intra Predictive Depth Map Coding Using Flexible Block Partitioning | eng |
dc.type | journal article | |
dspace.entity.type | Publication | |
oaire.awardTitle | IMPLICIT INTRA AND INTER PREDICTION FOR VIDEO CODING | |
oaire.awardURI | http://hdl.handle.net/10400.8/13247 | |
oaire.citation.endPage | 4068 | |
oaire.citation.issue | 11 | |
oaire.citation.startPage | 4055 | |
oaire.citation.title | IEEE Transactions on Image Processing | |
oaire.citation.volume | 24 | |
oaire.fundingStream | FARH | |
oaire.version | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |
person.familyName | M. M. Rodrigues | |
person.familyName | Faria | |
person.givenName | Nuno | |
person.givenName | Sergio | |
person.identifier.ciencia-id | 8815-4101-28DD | |
person.identifier.orcid | 0000-0001-9536-1017 | |
person.identifier.orcid | 0000-0002-0993-9124 | |
person.identifier.rid | C-5245-2011 | |
person.identifier.scopus-author-id | 7006052345 | |
person.identifier.scopus-author-id | 14027853900 | |
relation.isAuthorOfPublication | b4ebe652-7f0e-4e67-adb0-d5ea29fc9e69 | |
relation.isAuthorOfPublication | f69bd4d6-a6ef-4d20-8148-575478909661 | |
relation.isAuthorOfPublication.latestForDiscovery | b4ebe652-7f0e-4e67-adb0-d5ea29fc9e69 | |
relation.isProjectOfPublication | 765a11b3-9224-4846-98cb-fc8b64366b8d | |
relation.isProjectOfPublication.latestForDiscovery | 765a11b3-9224-4846-98cb-fc8b64366b8d |
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