Title :
Mathematical analysis of super-resolution methodology
Author :
Ng, Michael K. ; Bose, Nirmal K.
Author_Institution :
Dept. of Math., Hong Kong Univ., China
fDate :
5/1/2003 12:00:00 AM
Abstract :
The attainment of super resolution (SR) from a sequence of degraded undersampled images could be viewed as reconstruction of the high-resolution (HR) image from a finite set of its projections on a sampling lattice. This can then be formulated as an optimization problem whose solution is obtained by minimizing a cost function. The approaches adopted and their analysis to solve the formulated optimization problem are crucial, The image acquisition scheme is important in the modeling of the degradation process. The need for model accuracy is undeniable in the attainment of SR along with the design of the algorithm whose robust implementation will produce the desired quality in the presence of model parameter uncertainty. To keep the presentation focused and of reasonable size, data acquisition with multisensors instead of, say a video camera is considered.
Keywords :
data acquisition; image reconstruction; image resolution; optimisation; cost function; degraded undersampled images; high-resolution image; model accuracy; model parameter uncertainty; multisensors; optimization problem; reconstruction; sampling lattice; super-resolution methodology; Algorithm design and analysis; Cost function; Degradation; Image analysis; Image reconstruction; Image resolution; Image sampling; Lattices; Mathematical analysis; Strontium;
Journal_Title :
Signal Processing Magazine, IEEE
DOI :
10.1109/MSP.2003.1203210