eprintid: 1659
rev_number: 12
eprint_status: archive
userid: 21
dir: disk0/00/00/16/59
datestamp: 2016-05-25 02:59:24
lastmod: 2016-05-25 03:00:49
status_changed: 2016-05-25 02:59:24
type: article
metadata_visibility: show
creators_name: Pham, Nam Thanh
creators_name: Vu, Khuong Duy
creators_name: Dinh, Trieu Duong
creators_name: Le, Thanh Ha
creators_id: duongdt@vnu.edu.vn
creators_id: ltha@vnu.edu.vn
title: Efficient Region-of-Interest Based Adaptive Bit Allocation for 3D-TV Video Transmission over Networks
ispublished: pub
subjects: IT
divisions: fac_fit
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: 2015
date_type: published
publisher: VNU Journal of Science
full_text_status: none
publication: VNU Journal of Computer Science and Communication Engineering
refereed: TRUE
issn: 0866-8612
citation:   Pham, Nam Thanh and Vu, Khuong Duy and Dinh, Trieu Duong and Le, Thanh Ha  (2015) Efficient Region-of-Interest Based Adaptive Bit Allocation for 3D-TV Video Transmission over Networks.  VNU Journal of Computer Science and Communication Engineering .    ISSN 0866-8612