Successive refinement of side information for multi-view distributed video coding

• Tipo: Artigo em Revista Científica Internacional
• Data: 2010

Autores

Lucian Ciobanu (Autor) FEUP; Luís Corte-Real (Autor) FEUP

Revista

Título: Multimedia Tools and Applications

Vol. 48 Nº 3

Páginas: 411-436

ISSN: 1380-7501

Editora: Springer Nature

Indexação

ISI Web of Science

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia electrotécnica, electrónica e informática

Outras Informações

Abstract (EN): Inter-camera registration in multi-view systems with overlapped views has a particularly long and sophisticated research history within the computer vision community. Moreover, when applied to Distributed Video Coding, in systems with at least one moving camera it represents a real challenge due to the necessary data at decoder for generating the side information without any a priori knowledge of each instant camera position. This paper proposes a solution to this problem based on successive multi-view registration and motion compensated extrapolation for on-the-fly re-correlation of two views at decoder. This novel technique for side information generation is codec-independent, robust and flexible with regard to any free motion of the cameras. Furthermore, it doesn't require any additional information from encoders nor communication between cameras or offline training stage. We also propose a metric for an objective assessment of the multi-view correlation performance.

Idioma: Português

Tipo (Avaliação Docente): Científica