Geometric superresolution using CCD-mask

Ihtsham U. Haq; Asloob A. Mudassar

doi:10.1117/12.862049

27 August 2010 Geometric superresolution using CCD-mask

Ihtsham U. Haq, Asloob A. Mudassar

Proceedings Volume 7800, Image Reconstruction from Incomplete Data VI; 78000J (2010) https://doi.org/10.1117/12.862049
Event: SPIE Optical Engineering + Applications, 2010, San Diego, California, United States

Abstract

Resolution of any image taken by CCD camera is generally lower in resolution in comparison with original object. Assuming the imaging system as diffraction limited - the major component responsible for this resolution limitation is the pixel geometry in CCD. The area, shape of pixel and distance between them (inter-pixel spacing) together contributes in reduction of the resolution of the final electronic image. A number of techniques have been reported in the literature to overcome this geometric resolution limitation. We have proposed a novel geometric superresolution technique in which a CCD-mask is displaced over CCD-plane by one pixel in subpixel steps - both in x and y directions. The resultant processed superresolved image is improved in resolution by the subpixel steps factor. Simulation results in 2D have been presented which shows improvement in resolution. This superresolution technique can be applied to microscopy, medical imaging, satellite imaging and astronomy.

Citation Download Citation

Ihtsham U. Haq and Asloob A. Mudassar "Geometric superresolution using CCD-mask", Proc. SPIE 7800, Image Reconstruction from Incomplete Data VI, 78000J (27 August 2010); https://doi.org/10.1117/12.862049

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