کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6202786 1262929 2012 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optical superresolution and visual hyperacuity
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی سیستم های حسی
پیش نمایش صفحه اول مقاله
Optical superresolution and visual hyperacuity
چکیده انگلیسی

Classically, diffraction theory sets a boundary for the resolving capacity of optical instruments. Yet some visual thresholds have values much better than the traditional resolution limit. Recent developments in superresolution, an area of optical physics and engineering with claims of transcending the stated resolution limits of optical instruments, are reviewed and their possible relevance to visual spatial processing and to the exploration of the eye's structure are assessed. In optical or diffractive superresolution the transmitted spatial-frequency band is not so much extended as either multiplexed with or displaced into regions that are usually beyond reach, with no overall gain in information transfer because prior knowledge is used to make inferences of possible object structure from the image. The Uncertainty Principle for photon position and momentum is never disobeyed. The study of the neural substrate of visual hyperacuity does, however, overlap that of “geometrical superresolution,” in which techniques are used for transcending limits imposed by the receptor lattice in analyzing fine image structure.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Progress in Retinal and Eye Research - Volume 31, Issue 5, September 2012, Pages 467-480
نویسندگان
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