Scalable 3-D wavelet video coding

Concerning the various applications that involve heterogeneous networks, computing capabilities, and/or display terminals, such as Internet video streaming and live video surveillance, a scalable video coding system provides an effective solution to address this issue by offering some scalable funct...

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Main Author: Zong, Wenbo
Other Authors: Ma Kai Kuang
Format: Theses and Dissertations
Language:English
Published: 2008
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Online Access:https://hdl.handle.net/10356/13120
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-131202023-07-04T17:24:14Z Scalable 3-D wavelet video coding Zong, Wenbo Ma Kai Kuang School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing DRNTU::Engineering::Computer science and engineering::Data::Coding and information theory Concerning the various applications that involve heterogeneous networks, computing capabilities, and/or display terminals, such as Internet video streaming and live video surveillance, a scalable video coding system provides an effective solution to address this issue by offering some scalable functionalities including temporal scalability, spatial scalability and signal-to-noise ratio (SNR) scalability, while achieving high compression performance. Conventional hybrid coders like MPEG-2 and MPEG-4 are not able to offer scalability efficiently due to the recursive motion compensated (MC) prediction loop. In recent years, motion-compensated wavelet coding (MCWC) has emerged as a promising video coding approach to offering both high compression performance and versatile scalabilities. In this research, we first introduce the 3-D MCWC technology and its three possible structures: t+2D, 2D+t, and 2D+t+2D. We then investigate two issues related to MCWC. The first issue is the spatial scalability of the t+2D scheme, which suffers from degraded rate-distortion (R-D) performance for lower spatial resolutions. We investigate the problem from both the decoder side and the encoder side. At the decoder side, we present an in-depth analysis on the inverse motion-compensated temporal filtering (MCTF), or IMCTF, when reconstructing lower spatial resolution videos, and propose a method to improve the IMCTF process at the decoder. At the encoder side, we analyze the MCTF process in detail, and highlight the root source of aliasing that is not cancellable for lower spatial resolutions at the decoder. We propose a scheme named low-to-high lifting MCTF (LTH-MCTF) to eliminate this aliasing. Furthermore, we propose a practical solution, named pyramidal t+2D, that applies t+2D coding to each level of the frame pyramids to produce one separate bitstream with optimal R-D performance for each spatial resolution. MASTER OF ENGINEERING (EEE) 2008-10-20T07:14:37Z 2008-10-20T07:14:37Z 2008 2008 Thesis Zong, W. (2008). Scalable 3-D wavelet video coding. Master’s thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/13120 10.32657/10356/13120 en 142 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing
DRNTU::Engineering::Computer science and engineering::Data::Coding and information theory
spellingShingle DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing
DRNTU::Engineering::Computer science and engineering::Data::Coding and information theory
Zong, Wenbo
Scalable 3-D wavelet video coding
description Concerning the various applications that involve heterogeneous networks, computing capabilities, and/or display terminals, such as Internet video streaming and live video surveillance, a scalable video coding system provides an effective solution to address this issue by offering some scalable functionalities including temporal scalability, spatial scalability and signal-to-noise ratio (SNR) scalability, while achieving high compression performance. Conventional hybrid coders like MPEG-2 and MPEG-4 are not able to offer scalability efficiently due to the recursive motion compensated (MC) prediction loop. In recent years, motion-compensated wavelet coding (MCWC) has emerged as a promising video coding approach to offering both high compression performance and versatile scalabilities. In this research, we first introduce the 3-D MCWC technology and its three possible structures: t+2D, 2D+t, and 2D+t+2D. We then investigate two issues related to MCWC. The first issue is the spatial scalability of the t+2D scheme, which suffers from degraded rate-distortion (R-D) performance for lower spatial resolutions. We investigate the problem from both the decoder side and the encoder side. At the decoder side, we present an in-depth analysis on the inverse motion-compensated temporal filtering (MCTF), or IMCTF, when reconstructing lower spatial resolution videos, and propose a method to improve the IMCTF process at the decoder. At the encoder side, we analyze the MCTF process in detail, and highlight the root source of aliasing that is not cancellable for lower spatial resolutions at the decoder. We propose a scheme named low-to-high lifting MCTF (LTH-MCTF) to eliminate this aliasing. Furthermore, we propose a practical solution, named pyramidal t+2D, that applies t+2D coding to each level of the frame pyramids to produce one separate bitstream with optimal R-D performance for each spatial resolution.
author2 Ma Kai Kuang
author_facet Ma Kai Kuang
Zong, Wenbo
format Theses and Dissertations
author Zong, Wenbo
author_sort Zong, Wenbo
title Scalable 3-D wavelet video coding
title_short Scalable 3-D wavelet video coding
title_full Scalable 3-D wavelet video coding
title_fullStr Scalable 3-D wavelet video coding
title_full_unstemmed Scalable 3-D wavelet video coding
title_sort scalable 3-d wavelet video coding
publishDate 2008
url https://hdl.handle.net/10356/13120
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