Fast multiframe selection algorithm based on spatial-temporal characteristics of motion field

Liquan Shen; Zhi Liu; Zhao-Yang Zhang

doi:10.1117/1.2991409

1 October 2008 Fast multiframe selection algorithm based on spatial-temporal characteristics of motion field

Liquan Shen, Zhi Liu, Zhao-Yang Zhang

Author Affiliations +

Journal of Electronic Imaging, Vol. 17, Issue 4, 043004 (October 2008). https://doi.org/10.1117/1.2991409

Abstract

H.264 adopts multiple reference frames for motion estimation. This new feature significantly improves the prediction accuracy of intercoding blocks, but it results in a considerable increase in encoder complexity. The reference software JM adopts the full search scheme of which the increased computation is in proportion to the number of searched reference frames. However, the reduction of prediction residues is highly dependent on the nature of sequences, not on the number of searched frames. We propose a fast multiframe selection algorithm to deduct unnecessary reference frame searches, where the nearest reference frame (ref₀) is first searched, and the motion vectors from ref₀ compose motion field distribution. Based on the spatial and temporal consistencies of the motion field, only a small number of MBs select multiframe motion estimation. Simulation results show that the proposed algorithm can reduce more than 50% motion estimation computation cost on average and still maintain similar coding efficiency.

©(2008) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Liquan Shen, Zhi Liu, and Zhao-Yang Zhang "Fast multiframe selection algorithm based on spatial-temporal characteristics of motion field," Journal of Electronic Imaging 17(4), 043004 (1 October 2008). https://doi.org/10.1117/1.2991409

Published: 1 October 2008

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available