Naslov
Adaptive motion-estimation-mode selection for depth video coding

Autori
Kamolrat, B. ; Fernando, W.A.C. ; Mrak, Marta

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings ICASSP 2010 / Hansen, John - Dallas (TX) : Institute of Electrical and Electronics Engineers (IEEE), 2010, 702-705

ISBN
978-1-4244-4295-9

Skup
2010 IEEE International Conference on Acoustics Speech and Signal Processing (ICASSP)

Mjesto i datum
Dallas (TX), Sjedinjene Američke Države, 14.03.2010. - 19.03.2010

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
3D video; block matching; depth imagebased rendering (DIBR); motion estimation

Sažetak
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.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika, Računarstvo

POVEZANOST RADA