Abstract
Using an MPEG-4 MAC (multiple auxiliary component) system is a good way to encode stereoscopic video with existing standard CODECs, especially when it comes to low bitrate applications. In this paper, we discuss the properties and problems of MAC systems when encoding stereoscopic video, and propose an MAC-based stereoscopic video coder and disparity estimation scheme to solve those problems. We used a reconstructed disparity map during the disparity compensation process and took that disparity map into account while estimating the base-view sequence motion vectors. Moreover, we proposed a search range finding and illumination imbalance decision system. We also proposed a block-based disparity map regularization process as well as block splitting in the object boundary and occlusion regions (to reduce the number of bits to encode in both the disparity map and the residual image). Last, we compensated for the imbalance between two cameras with a novel system that used MAC characteristics. Experimental results indicate that the proposed MAC system outperformed conventional stereo coding systems by a maximum of 3.5 dB in terms of the PSNR and 10-18% in terms of bitsaving, especially in low bitrate applications.
| Original language | English |
|---|---|
| Pages (from-to) | 405-416 |
| Number of pages | 12 |
| Journal | Signal Processing: Image Communication |
| Volume | 23 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2008 Jul 1 |
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All Science Journal Classification (ASJC) codes
- Software
- Signal Processing
- Computer Vision and Pattern Recognition
- Electrical and Electronic Engineering
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Stereoscopic video coding and disparity estimation for low bitrate applications based on MPEG-4 multiple auxiliary components. / Kim, Jiyoung; Kim, Yongtae; Sohn, Kwanghoon.
In: Signal Processing: Image Communication, Vol. 23, No. 6, 01.07.2008, p. 405-416.Research output: Contribution to journal › Article
TY - JOUR
T1 - Stereoscopic video coding and disparity estimation for low bitrate applications based on MPEG-4 multiple auxiliary components
AU - Kim, Jiyoung
AU - Kim, Yongtae
AU - Sohn, Kwanghoon
PY - 2008/7/1
Y1 - 2008/7/1
N2 - Using an MPEG-4 MAC (multiple auxiliary component) system is a good way to encode stereoscopic video with existing standard CODECs, especially when it comes to low bitrate applications. In this paper, we discuss the properties and problems of MAC systems when encoding stereoscopic video, and propose an MAC-based stereoscopic video coder and disparity estimation scheme to solve those problems. We used a reconstructed disparity map during the disparity compensation process and took that disparity map into account while estimating the base-view sequence motion vectors. Moreover, we proposed a search range finding and illumination imbalance decision system. We also proposed a block-based disparity map regularization process as well as block splitting in the object boundary and occlusion regions (to reduce the number of bits to encode in both the disparity map and the residual image). Last, we compensated for the imbalance between two cameras with a novel system that used MAC characteristics. Experimental results indicate that the proposed MAC system outperformed conventional stereo coding systems by a maximum of 3.5 dB in terms of the PSNR and 10-18% in terms of bitsaving, especially in low bitrate applications.
AB - Using an MPEG-4 MAC (multiple auxiliary component) system is a good way to encode stereoscopic video with existing standard CODECs, especially when it comes to low bitrate applications. In this paper, we discuss the properties and problems of MAC systems when encoding stereoscopic video, and propose an MAC-based stereoscopic video coder and disparity estimation scheme to solve those problems. We used a reconstructed disparity map during the disparity compensation process and took that disparity map into account while estimating the base-view sequence motion vectors. Moreover, we proposed a search range finding and illumination imbalance decision system. We also proposed a block-based disparity map regularization process as well as block splitting in the object boundary and occlusion regions (to reduce the number of bits to encode in both the disparity map and the residual image). Last, we compensated for the imbalance between two cameras with a novel system that used MAC characteristics. Experimental results indicate that the proposed MAC system outperformed conventional stereo coding systems by a maximum of 3.5 dB in terms of the PSNR and 10-18% in terms of bitsaving, especially in low bitrate applications.
UR - http://www.scopus.com/inward/record.url?scp=45049083647&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=45049083647&partnerID=8YFLogxK
U2 - 10.1016/j.image.2008.03.006
DO - 10.1016/j.image.2008.03.006
M3 - Article
AN - SCOPUS:45049083647
VL - 23
SP - 405
EP - 416
JO - Signal Processing: Image Communication
JF - Signal Processing: Image Communication
SN - 0923-5965
IS - 6
ER -