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Adaptive motion-estimation-mode selection for depth video coding (CROSBI ID 583090)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Kamolrat, B. ; Fernando, W.A.C. ; Mrak, Marta Adaptive motion-estimation-mode selection for depth video coding // Proceedings ICASSP 2010 / Hansen, John (ur.). Dallas (TX): Institute of Electrical and Electronics Engineers (IEEE), 2010. str. 702-705

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

Povezanost rada

Elektrotehnika, Računarstvo