TY - GEN
T1 - A statistical approach to motion vector field smoothing for block-based motion-compensated frame interpolation
AU - Choi, Dooseop
AU - Song, Wonseok
AU - Park, Jongsoon
AU - Choi, Hyuk
AU - Kim, Taejeong
PY - 2012
Y1 - 2012
N2 - This paper proposes a new approach to motion vector field smoothing for block-based motion-compensated frame interpolation (MCFI). Based on the assumption that an observed motion vector field, which is the result of a block-based motion estimation (BME), is a degraded version of the true motion vector field, we calculate the maximum a posteriori (MAP) estimate of the true motion vector field from the observed. The degradation and the true motion vector field are modeled as additive Gaussian noise and a Markov random field, respectively. Iterative conditional modes (ICM) method is used for calculating the MAP estimate. The experimental results show that the proposed algorithm not only smoothes MVFs but also preserves motion boundaries better than the existing methods.
AB - This paper proposes a new approach to motion vector field smoothing for block-based motion-compensated frame interpolation (MCFI). Based on the assumption that an observed motion vector field, which is the result of a block-based motion estimation (BME), is a degraded version of the true motion vector field, we calculate the maximum a posteriori (MAP) estimate of the true motion vector field from the observed. The degradation and the true motion vector field are modeled as additive Gaussian noise and a Markov random field, respectively. Iterative conditional modes (ICM) method is used for calculating the MAP estimate. The experimental results show that the proposed algorithm not only smoothes MVFs but also preserves motion boundaries better than the existing methods.
KW - MAPMRF
KW - MCFI
KW - Motion vector field smoothing
UR - http://www.scopus.com/inward/record.url?scp=84867597598&partnerID=8YFLogxK
U2 - 10.1109/ICASSP.2012.6288051
DO - 10.1109/ICASSP.2012.6288051
M3 - Conference contribution
AN - SCOPUS:84867597598
SN - 9781467300469
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 989
EP - 992
BT - 2012 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2012 - Proceedings
T2 - 2012 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2012
Y2 - 25 March 2012 through 30 March 2012
ER -