8 research outputs found

    A High permormance hardware architecture for an sad reuse based hierarchical motion estimation algorithm for H.264 video coding

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    In this paper, we present a high performance and low cost hardware architecture for real-time implementation of an SAD reuse based hierarchical motion estimation algorithm for H.264 / MPEG4 Part 10 video coding. This hardware is designed to be used as part of a complete H.264 video coding system for portable applications. The proposed architecture is implemented in Verilog HDL. The Verilog RTL code is verified to work at 68 MHz in a Xilinx Virtex II FPGA. The FPGA implementation can process 27 VGA frames (640x480) or 82 CIF frames (352x288) per second

    VISKON-RS: Rapid damage assessment software with remote sensing

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    Afet sonrası, acil müdahale ekiplerinin yönlendirilmesi ve iyileştirme çalışmalarının planlanması amacıyla hızlı hasar değerlendirmesine ihtiyaç duyulmaktadır. Bu çalışmada, AFAD ihtiyaçları doğrultusunda uzaktan (uzay/hava) algılama teknolojileri ile elde edilen görüntülerin afet hasar analizinde kullanılmasına yönelik VİSKON-RS yazılımı geliştirilmiştir. Geliştirilen yazılım; deprem, sel ve orman yangını gibi afet türlerinin hasar analizlerine özelleşmiş uygulamalar içermektedir. Ayrıca genel görüntü analizinde kullanılabilecek değişiklik analizi, eğitimli/eğitimsiz sınıflandırma, nesne tabanlı görüntü analizi ve doku analizi gibi uygulamalar yazılıma entegre edilmiştir. VİSKON-RS yazılımın temel amacı, afet sonrası uzaktan algılama verilerinin, açılması, işlenmesi, analiz edilmesi, sonuçların sergilenmesi ve karar destek sistemlerine aktarılması adımlarını içeren bütünleşik bir yazılım çözümü sunmaktır.After a disaster, a rapid damage assessment is required for coordinating emergency response teams and planning emergency aid. In this study, in line with AFAD requirements, ViSKON-RS software was developed for the aim of using disaster damage assessment by analysing images obtained via remote(space/air) imaging technologies. The developed software includes specialized applications for damage assessment of disaster types such as earthquake, flood and forest fires. In addition, applications for general image analysis were integrated to the software like change detection analysis, supervised/unsupervised classification, object based image analysis and texture analysis. The main purpose of ViSKON-RS software is to be integrated software solution by opening, processing, analysing, showing and exporting results to desicion support system of post-disaster remote sensing data.Publisher's Versio

    Wills, deeds, acts: women's civic gift-giving in Ottoman Istanbul

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    The waqf (plural awqaf) is the Islamic pious endowment founded for charitable purposes. The Ottoman waqf, especially between the fifteenth and eighteenth centuries, became a gift-giving practice of solidarity in which women played an active role in founding and maintaining endowments as benefactors. These endowments served almost exclusively civic public services. While there has been considerable research on women and waqf, by moving beyond interpreting the ostensible motives that are always intertwined with women’s role as ‘family caretakers’ or ‘devout Muslims’, we attempt to suggest that, interpreted as acts of piety, awqaf, and especially those that were founded as organized spaces known as külliyes, became institutions by which women were able to cultivate (in themselves and others) civic identities, and articulate civic solidarities as citizens of their cities. This image of women as civic gift-givers recasts them as active citizens of Ottoman cities, especially Istanbul

    Epidemiological, Clinical, and Laboratory Features of Children With COVID-19 in Turkey

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    Objectives: The aim of this study is to identify the epidemiological, clinical, and laboratory features of coronavirus disease 2019 (COVID-19) in children
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