منابع مشابه
Sharpening of drifting, blurred images
The perceived blur of moving images is less than expected given the sluggish temporal response of the visual system. This suggests that a motion deblurring mechanism may exist to preserve the positional acuity and sharpness of moving images. Furthermore, when sequences of blurred stills are presented, observers report that the moving image is in sharp focus raising the possibility that there is...
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The current modelling of single microlensing light curves neglects the possibility that only a fraction of the light is due to the lensed star, the remaining being due to a close, unresolved blend, which may be related or unrelated to the lens. Unfortunately, the effects of blending are significant as all microlensing experiments choose very crowded fields as their targets. In this paper we poi...
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Nature-inspired search algorithms have proved to be successful in solving real-world optimization problems. Firefly algorithm is a novel meta-heuristic algorithm which simulates the natural behavior of fireflies. This paper proposes a new sharpening technique based on the contourlet transform and firefly algorithm. Numerical results indicate the efficiency of the proposed approach. The paramete...
متن کاملA Variational Approach for Sharpening High Dimensional Images
Earth observing satellites usually not only take ordinary red-green-blue images, but provide several images including the near-infrared and infrared spectrum. These images are called multispectral, for about four to seven different bands, or hyperspectral, for higher dimensional images of up to 210 bands. The drawback of the additional spectral information is that each spectral band has rather ...
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This paper presents a novel image fusion method, suitable for sharpening of multispectral (MS) images by means of a panchromatic (Pan) observation, based on a modified generalized intensity-hue-saturation algorithm: the MS bands expanded to the finer scale of the Pan image are sharpened by adding the spatial details derived from a difference image, which is calculated by the Pan image and a lin...
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ژورنال
عنوان ژورنال: Science
سال: 1978
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.200.4341.489