Temporal DCT-based compression of 3D dynamic meshes

Authors:
Khaled Mamou;Titus Zaharia;Francoise Preteux
Affiliations:
Groupe des Ecoles des Télécommunications, Institut National des Télécommunications, ARTEMIS Department, Evry, France;Groupe des Ecoles des Télécommunications, Institut National des Télécommunications, ARTEMIS Department, Evry, France;Groupe des Ecoles des Télécommunications, Institut National des Télécommunications, ARTEMIS Department, Evry, France
Venue:
ICCOM'06 Proceedings of the 10th WSEAS international conference on Communications
Year:
2006

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Abstract

This paper introduces a new compression scheme for 3D dynamic meshes with constant connectivity and time-varying geometry. The proposed approach, referred to as Temporal-CT encoder (TDCT), combines a piecewise affine prediction scheme with a temporal DCT-based compression of the prediction errors. Experiments show that TDCT achieves up to 70% and 54% lower compression distortions than the GV and MCGV approaches, while outperforming (47% to 95% lower distortions) RT, MPEG-4/AFX-IC, D3DMC and Dynapack techniques.