Liang-Jie Zhang, Lurng-Kuo Liu, et al.
Multimedia Systems
A block-based gradient descent search (BBGDS) algorithm is proposed in this paper to perform block motion estimation in video coding. The BBGDS evaluates the values of a given objective function starting from a small centralized checking block. The minimum within the checking block is found, and the gradient descent direction where the minimum is expected to lie is used to determine the search direction and the position of new checking block. The BBGDS is compared with full search (FS), three-step search (TSS), one-at-a-time search (OTS), and new three-step search (NTSS). Experimental results show that the proposed technique provides competitive performance with reduced computational complexity. © 1996 IEEE.
Liang-Jie Zhang, Lurng-Kuo Liu, et al.
Multimedia Systems
Virat Agarwal, Lurng-Kuo Liu, et al.
IPDPS 2008
Ephraim Feig, Elliot Linzer
IS&T/SPIE Electronic Imaging 1991
Liang-Jie Zhang, Jen-Yao Chung, et al.
MSE 2002