Techniques for improving the performance of distributed video coding
type: Dataset
description: Distributed Video Coding (DVC) is a recently proposed paradigm in video communication, which fits well emerging applications such as wireless video surveillance, multimedia sensor networks, wireless PC camera, and mobile cameras phones. These applications require a low complexity encoding, while possibly affording a high complexity decoding. In DVC, a Side Information (SI) is estimated at the decoder, using the available decoded frames, and used for the decoding and reconstruction of other frames. In this PhD thesis, we propose new techniques in order to improve the quality of the SI. First, successive refinement of the SI is performed after each decoded DCT band. Then, a new scheme for SI generation based on backward, forward motion estimations, and Quad-tree refinement is proposed. Furthermore, new methods for combining global and local motion estimations are proposed, to further improve the SI, using the differences between the corresponding blocks and Support Vector Machine (SVM). In addition, algorithms are proposed to refine the fusion during the decoding process. Furthermore, the foreground objects are used in the combination of the global and local motion estimations, using elastic curves and foreground objects motion compensation. Extensive experiments have been conducted showing that important gains are obtained by the proposed techniques compared to the classical DISCOVER codec. In addition, the performance of DVC applying the proposed algorithms outperforms now the performance of H.264/AVC Intra and H.264/AVC No motion for tested sequences. Besides that, the gap with H.264/AVC in an Inter IB…IB configuration is significantly reduced.
landing page: https://pastel.hal.science/tel-00794685
identifier: NNT: 2012ENST0075
keyword: codage-video-distribue
keyword: estimation-de-mouvement
keyword: estimation-globale
keyword: estimation-local
keyword: global-estimation
keyword: infoeu-reposemanticsdoctoralthesis
keyword: local-estimation
keyword: spiotherengineering-sciences-physicsother
keyword: svm
keyword: theses
keyword: video-coding
issued: 2026-05-10T17:29:42.958681
modified: 2026-05-10T17:29:42.958685
language: en
contact point: Organization
  fn: CCSD

test_moissonnage_selune
type: Agent

Techniques for improving the performance of distributed video coding
type: Distribution
format: HTML
access URL: https://pastel.hal.science/tel-00794685
issued: 2026-05-10T17:29:42.972067
modified: 2026-05-10T17:29:42.944125