Open AccessProceedings Article
Using a 3-D Shape Model for Video Coding
Chuo-Ling Chang,Peter Eisert,Bernd Girod +2 more
- 01 Jan 2002
pp 291-297
TL;DR: A model-aided coder that incorporates 3-D shape and motion information to improve the performance of a video coding system and Experimental results show that bit-rate savings of 30%-40% are achieved at equal PSNR compared to the H.26L test model TML8.0.
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Abstract: In this work, we present a model-aided coder that incorporates 3-D shape and motion information to improve the performance of a video coding system. The 3-D shape model of a rigid body is estimated from the video sequence directly. Using the shape model, the 3-D motion of the rigid body and the background global motion are also estimated for video coding. Experimental results show that bit-rate savings of 30%-40% are achieved at equal PSNR compared to the H.26L test model TML8.0. This corresponds to 2-3 dB improvements in PSNR when encoding at the same bit-rate.
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Citations
Exploiting the 3D Structures Observed in 2D Video Sequences for Motion Compensation
Hossein Bakhshi Golestani,Jens-Rainer Ohm +1 more
- 01 Jun 2021
TL;DR: In this article, a method for rendering virtual Reference Pictures (RPs) based on the 3D information extracted from 2D video sequences is introduced, which is offered to the Versatile Video Coding (VVC) encoder to serve as motion compensation references.
References
Model-aided coding: a new approach to incorporate facial animation into motion-compensated video coding
TL;DR: It is shown that traditional waveform coding and 3-D model-based coding are not competing alternatives, but should be combined to support and complement each other.
Three-dimensional modeling from two-dimensional video
Pedro Aguiar,Jose M. F. Moura +1 more
TL;DR: The surface-based factorization method to recover three-dimensional (3-D) structure of a rigid object from a two-dimensional video sequence is presented, and the method estimates the parameters describing the 3-D structure by factoring a rank 1 matrix, not rank 3 as in Tomasi and Kanade.
Three-dimensional motion estimation of objects for video coding
TL;DR: Three-dimensional motion estimation is applied to the problem of motion compensation for video coding and it is shown that the motion equations of a rigid body can be formulated as a nonlinear dynamic system whose state is represented by the motion parameters and by the scaled depths of the object feature points.
Using view interpolation for low bit rate video
Richard J. Radke,Peter J. Ramadge,Sanjeev R. Kulkarni,Tomio Echigo +3 more
- 07 Oct 2001
TL;DR: It is demonstrated that in some situations, perceptual quality can be maintained using an approach based on synthesizing "virtual" images of a scene that match frames from a source video clip, well-suited for the limitations in bandwidth and complexity characteristic of wireless multimedia channels.
Computed 3D models for very low bit-rate video coding
Franck Galpin,Luce Morin +1 more
- 29 Dec 2000
TL;DR: In this article, the authors proposed a method using several 3D models in order to reconstruct the original video sequence or a virtual one, and compared with classical compression schemes, and presented a complete scheme for video sequence compression.
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