Accurate determination of subpixel resolution point spread function from imprecise measurement data

Kang-Soo Kim

doi:10.1117/12.179697

15 July 1994 Accurate determination of subpixel resolution point spread function from imprecise measurement data

Kang-Soo Kim

Proceedings Volume 2225, Infrared Detectors and Focal Plane Arrays III; (1994) https://doi.org/10.1117/12.179697
Event: SPIE's International Symposium on Optical Engineering and Photonics in Aerospace Sensing, 1994, Orlando, FL, United States

Abstract

This paper demonstrates that the two premises are interrelated, which is fortunate for us. This means once the scanner step sizes are accurately determined, an identical PSF wave form can be obtained. The paper describes a detector output shifting algorithm for estimating the actual step size to a fraction of a microradian, which also leads to production of an identical wave form measured by all the detectors. Realizing this is actually an image of a small target, which is a convolution of the target, the optics PSF and the detector response, the optics point spread function is determined through the deconvolution of the image with the detector PSF and the ideal geometric image.

Citation Download Citation

Kang-Soo Kim "Accurate determination of subpixel resolution point spread function from imprecise measurement data", Proc. SPIE 2225, Infrared Detectors and Focal Plane Arrays III, (15 July 1994); https://doi.org/10.1117/12.179697

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