Title :
Recovery Video Stabilization Using MRF-MAP Optimization
Author :
Kim, Soo Wan ; Yi, Kwang Moo ; Oh, Songhwai ; Choi, Jin Young
Author_Institution :
EECS Dept., Seoul Nat. Univ., Seoul, South Korea
Abstract :
In this paper, we propose a novel approach for video stabilization using Markov random field (MRF) modeling and maximum a posteriori (MAP) optimization. We build an MRF model describing a sequence of unstable images and find joint pixel matchings over all image sequences with MAP optimization via Gibbs sampling. The resulting displacements of matched pixels in consecutive frames indicate the camera motion between frames and can be used to remove the camera motion to stabilize image sequences. The proposed method shows robust performance even when a scene has moving foreground objects and brings more accurate stabilization results. The performance of our algorithm is evaluated on outdoor scenes.
Keywords :
Markov processes; image matching; image motion analysis; image sampling; image sequences; maximum likelihood estimation; random processes; video signal processing; Gibbs sampling; MRF modeling; MRF-MAP optimization; Markov random field; camera motion; image sequence; maximum a posteriori; moving foreground object; outdoor scene; pixel matching; unstable image; video stabilization; Cameras; Markov processes; Optimization; Pixel; Tracking; Transforms; Video sequences; Joint pixel matching; Markov Random Field; Video stabilization;
Conference_Titel :
Pattern Recognition (ICPR), 2010 20th International Conference on
Conference_Location :
Istanbul
Print_ISBN :
978-1-4244-7542-1
DOI :
10.1109/ICPR.2010.687