منابع مشابه
Color Moving Pictures Quality Metric
This paper presents a comprehensive quality metric for color moving pictures which is based on a spatio-temporal vision model and on the opponent-colors theory. The metric is used to assess the quality of MPEG compressed video streams and is compared with a grayscale video quality metric developed recently.
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Prevailing concepts of the optic nerve (ON) head (ONH) and peripapillary region have been informed by static histologic and photographic images. Consequently, most investigators have been biased to envision the ONH region as largely rigid. Sibony’s accompanying paper highlights a dynamic view, employing geometric morphometric analysis of optical coherence tomography of the ONH region in idiopat...
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Last autumn the image of a young Syrian boy lying dead on a Turkish beach highlighted the humanitarian plight of refugees and infl uenced public opinion. The photograph of Alan Kurdi spoke to people more powerfully than any words could have done. Photographs can move us, enrage us, challenge our ideas, and provoke us to action. Other pictures can bring joy and hope. In last year’s Lancet Highli...
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Lice are small, wingless, minor ectoparasites of mammals and birds. More than 540 blood-sucking lice (Phthiraptera: Anoplura) have been described with each host having its own type of louse, suggesting the cospeciation of the lice species with their host. Among these, two lice species from two different genera infest humans: Pediculus humanus and Phthirus pubis (pubic “crab” l...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1910
ISSN: 0036-8733
DOI: 10.1038/scientificamerican01011910-12asupp