Incorporating the entire modulation transfer function into an infrared target acquisition model

Hadar, Ofer; Rotman, Stanley R.; Kopeika, Norman S.; Kowalczyk, Marta

doi:10.1016/s1350-4495(98)00014-0

Cited by 4 publications

(1 citation statement)

References 5 publications

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“…If the MTF based on the edge response can be also calculated from the image, it may serve as a criterion for restoration success. 1,4,7,10 In most cases, the images were recorded over a wide area with lots of details, but with only about three to six pixels for both black and white strips. This information is not enough to get a real and correct atmospheric MTF.…”

Section: Edge Response and Mtf Criteriamentioning

confidence: 99%

Criteria for satellite image restoration success

et al. 2003

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Many properties of the atmosphere affect the quality of images propagating through it by blurring and reducing their contrast. The atmospheric path involves several limitations, such as scattering, absorption of light, and turbulence, which degrade the image. Recently developed atmospheric filters, which correct for turbulence blur, aerosol blur, and path radiance simultaneously, are implemented here in the digital restoration of Landsat thematic mapper (TM) imagery. The turbulence modulation transfer function (MTF) is calculated from meteorological data or estimated if no meteorological data were measured. Aerosol MTF is consistent with optical depth. The product of the two yields atmospheric MTF, which is implemented in the atmospheric filter. Restoration improves smallness of size of both resolvable detail and contrast. Restorations are quite apparent even under clear weather conditions. A way to evaluate restoration improvement is presented here by the use of quantitative criteria as well as subjective opinions of human observers in perception experiments. Not all the restoration criteria represent improvement in the same tested image under the same restoration conditions. When one criterion suggests an enhancement, there is a chance that another one might represent a lower value for restoration success.

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Section: Edge Response and Mtf Criteriamentioning

confidence: 99%