论文信息 - Preconditioning for Temporal Video Superresolution

Preconditioning for Temporal Video Superresolution

Temporal superresolution produces a video sequence of high temporal resolution (HTR), i.e. frame rate, from a set of video sequences of low temporal resolution (LTR). A method for preconditioning large systems of linear equations arising in temporal video superresolution problems is presented. We show that circulant block preconditioners can accelerate the convergence of iterative techniques such as the conjugate gradient method when solving such problems. Simulations demonstrate the effectiveness of our approach.

Jeremy R. Cooperstock | Stéphane Pelletier | J. Cooperstock | Stéphane Pelletier

[1] V. A. Barker,et al. Finite element solution of boundary value problems , 1984 .

[2] Lisa M. Brown,et al. A survey of image registration techniques , 1992, CSUR.

[3] Yousef Saad,et al. Iterative methods for sparse linear systems , 2003 .

[4] Moon Gi Kang,et al. Super-resolution image reconstruction: a technical overview , 2003, IEEE Signal Process. Mag..

[5] G. Strang. A proposal for toeplitz matrix calculations , 1986 .

[6] Peyman Milanfar,et al. A computationally efficient superresolution image reconstruction algorithm , 2001, IEEE Trans. Image Process..

[7] Yaron Caspi,et al. Under the supervision of , 2003 .

[8] Raymond H. Chan,et al. Conjugate Gradient Methods for Toeplitz Systems , 1996, SIAM Rev..

[9] M. Irani,et al. Spatio-Temporal Alignment of Sequences , 2002, IEEE Trans. Pattern Anal. Mach. Intell..

[10] Robert L. Stevenson,et al. Spatial Resolution Enhancement of Low-Resolution Image Sequences A Comprehensive Review with Directions for Future Research , 1998 .

[11] O. Axelsson,et al. Finite element solution of boundary value problemes - theory and computation , 2001, Classics in applied mathematics.