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There the SI generator uses forward and bidirectional motion estimation, motion vector refinement, spatial motion smoothing techniques, and it adapt the motion vector to fit into the frame grid.
Murray et al. 2007 [13] Dyadic 3D filterbank (optimal design) QEA + new AM and FM motion estimation Motion Estimation for Atheroscle-rotic Plaque videos compared against other Phased-based method Murray et al. 2008 [8], Agurto et al. 2008 [85] and Barriga et al. [86] Dyadic 2D filterbank New VS-LLP method Retinal image analysis.
Error-probability estimation methods on the encoder side generate a coarse SI by simple linear interpolation, rough block-based motion estimation, motion compensation, and so on.
Usually, offline video stabilization techniques are divided in three stages: Local motion estimation Motion intention estimation Motion compensation.
In general, digital video stabilization consists of three major steps, namely motion estimation, motion smoothing, and frame synthesis.
Due to the use of block-based motion estimation, motion contrast is not effective for locating small inaccuracies in object boundaries, and so it was not used in selecting the frames needing improvement or the key frames.
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To provide for a method of identifying accurate motion estimation, Fleet and Jepson require that the estimated IF is within the range of the estimating filter.
Figure 5 (a) A data search flow for the individual block motion estimation when MVP is not zero; (b) a data search flow for the individual block motion estimation when MVP is zero.
We first designed a modelization of the motion estimation of ABMA.
Subpixel interpolation is also proposed to improve motion estimation for SI generation [12].
Motion estimation for SI would be more correct for smooth areas than edges, that is, less WZ bits are used for smooth areas.
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