Encoder-Unconstrained User Interactive Partial Decoding Scheme

Chen LIU; Xin JIN; Tianruo ZHANG; Satoshi GOTO

doi:10.1587/transfun.E95.A.1288

Encoder-Unconstrained User Interactive Partial Decoding Scheme

Chen LIU, Xin JIN, Tianruo ZHANG, Satoshi GOTO

Full Text Views

0

Cite this

Summary :

High-definition (HD) videos become more and more popular on portable devices these years. Due to the resolution mismatch between the HD video sources and the relative low-resolution screens of portable devices, the HD videos are usually fully decoded and then down-sampled (FDDS) for the displays, which not only increase the cost of both computational power and memory bandwidth, but also lose the details of video contents. In this paper, an encoder-unconstrained partial decoding scheme for H.264/AVC is presented to solve the problem by only decoding the object of interest (OOI) related region, which is defined by users. A simplified compression domain tracking method is utilized to ensure that the OOI locates in the center of the display area. The decoded partial area (DPA) adaptation, the reference block relocation (RBR) and co-located temporal Intra prediction (CTIP) methods are proposed to improve the visual quality for the DPA with low complexity. The simulation results show that the proposed partial decoding scheme provides an average of 50.16% decoding time reduction comparing to the fully decoding process. The displayed region also presents the original HD granularity of OOI. The proposed partial decoding scheme is especially useful for displaying HD video on the devices of which the battery life is a crucial factor.

Publication: IEICE TRANSACTIONS on Fundamentals Vol.E95-A No.8 pp.1288-1296

Publication Date: 2012/08/01

Publicized

Online ISSN: 1745-1337

DOI: 10.1587/transfun.E95.A.1288

Type of Manuscript: Special Section PAPER (Special Section on Image Media Quality)

Category: Coding & Processing

Cite this

Copy

Chen LIU, Xin JIN, Tianruo ZHANG, Satoshi GOTO, "Encoder-Unconstrained User Interactive Partial Decoding Scheme" in IEICE TRANSACTIONS on Fundamentals, vol. E95-A, no. 8, pp. 1288-1296, August 2012, doi: 10.1587/transfun.E95.A.1288.
Abstract: High-definition (HD) videos become more and more popular on portable devices these years. Due to the resolution mismatch between the HD video sources and the relative low-resolution screens of portable devices, the HD videos are usually fully decoded and then down-sampled (FDDS) for the displays, which not only increase the cost of both computational power and memory bandwidth, but also lose the details of video contents. In this paper, an encoder-unconstrained partial decoding scheme for H.264/AVC is presented to solve the problem by only decoding the object of interest (OOI) related region, which is defined by users. A simplified compression domain tracking method is utilized to ensure that the OOI locates in the center of the display area. The decoded partial area (DPA) adaptation, the reference block relocation (RBR) and co-located temporal Intra prediction (CTIP) methods are proposed to improve the visual quality for the DPA with low complexity. The simulation results show that the proposed partial decoding scheme provides an average of 50.16% decoding time reduction comparing to the fully decoding process. The displayed region also presents the original HD granularity of OOI. The proposed partial decoding scheme is especially useful for displaying HD video on the devices of which the battery life is a crucial factor.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E95.A.1288/_p

Copy

@ARTICLE{e95-a_8_1288,
author={Chen LIU, Xin JIN, Tianruo ZHANG, Satoshi GOTO, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Encoder-Unconstrained User Interactive Partial Decoding Scheme},
year={2012},
volume={E95-A},
number={8},
pages={1288-1296},
abstract={High-definition (HD) videos become more and more popular on portable devices these years. Due to the resolution mismatch between the HD video sources and the relative low-resolution screens of portable devices, the HD videos are usually fully decoded and then down-sampled (FDDS) for the displays, which not only increase the cost of both computational power and memory bandwidth, but also lose the details of video contents. In this paper, an encoder-unconstrained partial decoding scheme for H.264/AVC is presented to solve the problem by only decoding the object of interest (OOI) related region, which is defined by users. A simplified compression domain tracking method is utilized to ensure that the OOI locates in the center of the display area. The decoded partial area (DPA) adaptation, the reference block relocation (RBR) and co-located temporal Intra prediction (CTIP) methods are proposed to improve the visual quality for the DPA with low complexity. The simulation results show that the proposed partial decoding scheme provides an average of 50.16% decoding time reduction comparing to the fully decoding process. The displayed region also presents the original HD granularity of OOI. The proposed partial decoding scheme is especially useful for displaying HD video on the devices of which the battery life is a crucial factor.},
keywords={},
doi={10.1587/transfun.E95.A.1288},
ISSN={1745-1337},
month={August},}

Copy

TY - JOUR
TI - Encoder-Unconstrained User Interactive Partial Decoding Scheme
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1288
EP - 1296
AU - Chen LIU
AU - Xin JIN
AU - Tianruo ZHANG
AU - Satoshi GOTO
PY - 2012
DO - 10.1587/transfun.E95.A.1288
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E95-A
IS - 8
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - August 2012
AB - High-definition (HD) videos become more and more popular on portable devices these years. Due to the resolution mismatch between the HD video sources and the relative low-resolution screens of portable devices, the HD videos are usually fully decoded and then down-sampled (FDDS) for the displays, which not only increase the cost of both computational power and memory bandwidth, but also lose the details of video contents. In this paper, an encoder-unconstrained partial decoding scheme for H.264/AVC is presented to solve the problem by only decoding the object of interest (OOI) related region, which is defined by users. A simplified compression domain tracking method is utilized to ensure that the OOI locates in the center of the display area. The decoded partial area (DPA) adaptation, the reference block relocation (RBR) and co-located temporal Intra prediction (CTIP) methods are proposed to improve the visual quality for the DPA with low complexity. The simulation results show that the proposed partial decoding scheme provides an average of 50.16% decoding time reduction comparing to the fully decoding process. The displayed region also presents the original HD granularity of OOI. The proposed partial decoding scheme is especially useful for displaying HD video on the devices of which the battery life is a crucial factor.
ER -