کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
562923 | 1451964 | 2014 | 6 صفحه PDF | دانلود رایگان |
• The paper proposes a method to increase the resolution of an image at the time of the acquisition.
• The algorithm is computationally efficient due to the fast computation of the duals in spline-type spaces with multiple generators.
• Experiments on synthetic and astronomical optical images are performed in order to validate the method.
The aim of this paper is to introduce a computational efficient method to increase the resolution of an image together with an automatic registration with subpixel accuracy. The algorithm makes use of a priori knowledge of the offsets for a set of digital images and the fast computation of the duals in spline-type spaces with multiple generators. These spaces are obtained by applying a discrete group of translation operators to a finite set of smooth functions, forming a Riesz basis for its closed linear span within the Hilbert space L2(R2)L2(R2). Experiments on synthetic and astronomical optical images are presented.
Journal: Signal Processing - Volume 103, October 2014, Pages 195–200