Phase theory model for analyses of spatial sampling system and its utilization in multiframe super-resolution

Yi Zhang; Baomin Zhang; Lianfa Bai; Qinbao Wang

doi:10.1117/12.481553

30 August 2002 Phase theory model for analyses of spatial sampling system and its utilization in multiframe super-resolution

Yi Zhang, Baomin Zhang, Lianfa Bai, Qinbao Wang

Author Affiliations +

Proceedings Volume 4925, Electronic Imaging and Multimedia Technology III; (2002) https://doi.org/10.1117/12.481553
Event: Photonics Asia, 2002, Shanghai, China

Abstract

In the imaging process of staring infrared Focal Plane Array (FPA), spatial-sampling frequency is determined by the physical size and spatial distance ofthe detecting unit. While the spatial frequency ofthe detected scene is always more than half of the sampling frequency of staring infrared Focal Plane Arrays, thus under-sampling happened, and the quality and utility of the image will be seriously degraded by aliasing. For the reduction of this effect, many scholars carried out a lot of theoretical analyses and bring forward some techniques. In this paper, theoretical analyses of forerunners are concluded, an integrated novel theoretical analysis on the reduction of aliasing is put forward, and the expectation of image reconstruction through uncontrolled micro-shift is discussed.

Citation Download Citation

Yi Zhang, Baomin Zhang, Lianfa Bai, and Qinbao Wang "Phase theory model for analyses of spatial sampling system and its utilization in multiframe super-resolution", Proc. SPIE 4925, Electronic Imaging and Multimedia Technology III, (30 August 2002); https://doi.org/10.1117/12.481553

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