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
![[img]](https://eprints.uet.vnu.edu.vn/eprints/style/images/fileicons/application_pdf.png) |
PDF
Download (690kB) |
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.
| Item Type: | Article |
|---|---|
| Subjects: | Electronics and Communications > Communications Electronics and Communications |
| Divisions: | Faculty of Electronics and Telecommunications (FET) |
| Depositing User: | Assoc/Prof Duc Tan Tran |
| Date Deposited: | 26 May 2016 05:42 |
| Last Modified: | 26 May 2016 05:44 |
| URI: | http://eprints.uet.vnu.edu.vn/eprints/id/eprint/1746 |
Actions (login required)
 |
View Item |
