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...
متن کاملMultiresolutional/fractal Compression of Still and Moving Pictures
The scope of the present dissertation is a deep lossy compression of still and moving grayscale pictures while maintaining their fidelity, with a specific goal of creating a working prototype of a software system for use in low bandwidth transmission of still satellite imagery and weather briefings with the best preservation of features considered important by the end user. Among the major resu...
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This paper presents a visual language called Miro for specifying and restricting operating system security configurations. A Miro picture specifies exactly what rights users have on files. A Miro constraint, also stated visually, restricts the set of Miro pictures which are considered legal. Such constraints on pictures give an exact specification of security policies and a practical method for...
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ژورنال
عنوان ژورنال: Nature
سال: 1982
ISSN: 0028-0836,1476-4687
DOI: 10.1038/297709b0