Efficient Region-of-Interest Based Adaptive Bit Allocation for 3D-TV Video Transmission over Networks
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oai:112.137.131.14:VNU_123-567722017-09-30T16:29:25Z Efficient Region-of-Interest Based Adaptive Bit Allocation for 3D-TV Video Transmission over Networks Pham, Thanh Nam Vu, Duy Khuong Dinh, Trieu Duong Le, Thanh Ha ROI detection Bit allocation Rate-Distortion Optimization p. 1-9 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. 2017-08-14T07:41:13Z 2017-08-14T07:41:13Z 2016 Article 0866-8612 http://repository.vnu.edu.vn/handle/VNU_123/56772 en Vol. 32, No. 1 (2016); application/pdf ĐHQGHN |
| institution |
Vietnam National University, Hanoi |
| building |
VNU Library & Information Center |
| country |
Vietnam |
| collection |
VNU Digital Repository |
| language |
English |
| topic |
ROI detection Bit allocation Rate-Distortion Optimization |
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ROI detection Bit allocation Rate-Distortion Optimization Pham, Thanh Nam Vu, Duy Khuong Dinh, Trieu Duong Le, Thanh Ha Efficient Region-of-Interest Based Adaptive Bit Allocation for 3D-TV Video Transmission over Networks |
| description |
p. 1-9 |
| format |
Article |
| author |
Pham, Thanh Nam Vu, Duy Khuong Dinh, Trieu Duong Le, Thanh Ha |
| author_facet |
Pham, Thanh Nam Vu, Duy Khuong Dinh, Trieu Duong Le, Thanh Ha |
| author_sort |
Pham, Thanh Nam |
| title |
Efficient Region-of-Interest Based Adaptive Bit Allocation for 3D-TV Video Transmission over Networks |
| title_short |
Efficient Region-of-Interest Based Adaptive Bit Allocation for 3D-TV Video Transmission over Networks |
| title_full |
Efficient Region-of-Interest Based Adaptive Bit Allocation for 3D-TV Video Transmission over Networks |
| title_fullStr |
Efficient Region-of-Interest Based Adaptive Bit Allocation for 3D-TV Video Transmission over Networks |
| title_full_unstemmed |
Efficient Region-of-Interest Based Adaptive Bit Allocation for 3D-TV Video Transmission over Networks |
| title_sort |
efficient region-of-interest based adaptive bit allocation for 3d-tv video transmission over networks |
| publisher |
ĐHQGHN |
| publishDate |
2017 |
| url |
http://repository.vnu.edu.vn/handle/VNU_123/56772 |
| _version_ |
1680962797039517696 |