Adaptive motion-estimation-mode selection for depth video coding (CROSBI ID 583090)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Kamolrat, B. ; Fernando, W.A.C. ; Mrak, Marta
engleski
Adaptive motion-estimation-mode selection for depth video coding
An effective representation of 3D video in future 3D-TV systems consists of monoscopic video (colour component) and associated per-pixel depth information (depth component). As depth component indicates relative distance between objects within the scene and a camera, pixel values change not only when objects move in vertical and horizontal directions but also when they move in a depth direction. Instead of predicting motion of objects in two directions as appearing in traditional video codecs, three-dimensional block matching (3D-BM) achieves more accurate motion estimation in depth video coding. However overall performance of 3D-BM exceeds that of the traditional two-dimensional block matching (2D-BM) only at high bit rate. In this paper, an adaptive 2D-3D BM selection algorithm is introduced to compromise performance of 2DBM and 3D-BM. The Lagrangian optimisation algorithm is applied to select motion estimation mode at a block level. The experiment results reveal that the proposed adaptive motion-estimation-mode selection can improve the performance of 3D-BM at low bit rate while advantages of 3D-BM are preserved at high bit rate.
3D video; block matching; depth imagebased rendering (DIBR); motion estimation
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Podaci o prilogu
702-705.
2010.
objavljeno
Podaci o matičnoj publikaciji
Proceedings ICASSP 2010
Hansen, John
Dallas (TX): Institute of Electrical and Electronics Engineers (IEEE)
978-1-4244-4295-9
1520-6149
Podaci o skupu
2010 IEEE International Conference on Acoustics Speech and Signal Processing (ICASSP)
predavanje
14.03.2010-19.03.2010
Dallas (TX), Sjedinjene Američke Države