eprintid: 1746
rev_number: 8
eprint_status: archive
userid: 12
dir: disk0/00/00/17/46
datestamp: 2016-05-26 05:42:45
lastmod: 2016-05-26 05:44:01
status_changed: 2016-05-26 05:42:45
type: article
metadata_visibility: show
creators_name: Pham, Nam Thanh
creators_name: Vu, Khuong Duy
creators_name: Dinh, Duong Trieu
creators_name: Le, Ha Thanh
creators_id: nampt@gmail.com
creators_id: duykv@gmail.com
creators_id: đuongt@vnu.edu.vn
creators_id: thanhha@vnu.edu.vn
title: Efficient Region-of-Interest Based Adaptive Bit Allocation for 3D-TV Video Transmission over Networks
ispublished: pub
subjects: Communications
subjects: ECE
divisions: fac_fet
abstract: Due to characteristics of human visual system (HVS), people usually focus more on a specific region named region-of-interest (ROI) of a video frame, rather than watch the whole frame. In addition, ROI-based video coding can also help to effectively reduce the number of encoding bitrates required for video transmission over networks, especially for the 3D-TV transmissions. Therefore, in this work, we propose a novel ROI-based bit allocation (BA) method which can adaptively extract and increase the visual quality of ROI while saving a huge number of encoding bitrates for video data. In the proposed method, we first detect and extract ROI based on the depth information obtained from 3D-TV video coding sequences. Then, based on the extracted ROI, a novel BA scheme is performed to solve the rate-distortion (R-D) optimization problem, in which the higher priority bitrates are adaptively assigned to ROI while the total encoding bitrates of video frames are kept satisfying all constraints required by the R-D optimization. Experimental results show that the proposed method provides much better higher peak signal-to-noise ratio (PSNR) as compared to other conventional BA methods.
date: 2016
date_type: published
publisher: VNU Journal of Science
full_text_status: public
publication: VNU Journal of Computer Science and Communication Engineering
volume: 32
number: 1
pagerange: 1-9
refereed: TRUE
issn: 0866-8612
citation:   Pham, Nam Thanh and Vu, Khuong Duy and Dinh, Duong Trieu and Le, Ha Thanh  (2016) Efficient Region-of-Interest Based Adaptive Bit Allocation for 3D-TV Video Transmission over Networks.  VNU Journal of Computer Science and Communication Engineering, 32  (1).   pp. 1-9.  ISSN 0866-8612     
document_url: https://eprints.uet.vnu.edu.vn/eprints/id/eprint/1746/1/111-410-1-PB.pdf