Browsing by Subject "Storage"
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Item Open Access Automatic detection of salient objects and spatial relations in videos for a video database system(Elsevier BV, 2008-10) Sevilmiş, T.; Baştan M.; Güdükbay, Uğur; Ulusoy, ÖzgürMultimedia databases have gained popularity due to rapidly growing quantities of multimedia data and the need to perform efficient indexing, retrieval and analysis of this data. One downside of multimedia databases is the necessity to process the data for feature extraction and labeling prior to storage and querying. Huge amount of data makes it impossible to complete this task manually. We propose a tool for the automatic detection and tracking of salient objects, and derivation of spatio-temporal relations between them in video. Our system aims to reduce the work for manual selection and labeling of objects significantly by detecting and tracking the salient objects, and hence, requiring to enter the label for each object only once within each shot instead of specifying the labels for each object in every frame they appear. This is also required as a first step in a fully-automatic video database management system in which the labeling should also be done automatically. The proposed framework covers a scalable architecture for video processing and stages of shot boundary detection, salient object detection and tracking, and knowledge-base construction for effective spatio-temporal object querying. © 2008 Elsevier B.V. All rights reserved.Item Open Access Benefits of forecasting and energy storage in isolated grids with large wind penetration – The case of Sao Vicente(Elsevier, 2017) Yuan, S.; Kocaman, A.S.; Modi, V.For electric grids that rely primarily on liquid fuel based power generation for energy provision, e.g. one or more diesel gensets, measures to allow a larger fraction of intermittent sources can pay-off since the displaced is high cost diesel powered generation. This paper presents a case study of Sao Vicente, located in Cape Verde where a particularly high fraction of wind capacity of 5.950�MW (75% of the average demand) is installed, with diesel gensets forming the dispatchable source of power. This high penetration of intermittent power is managed through conservative forecasting and curtailments. Two potential approaches to reduce curtailments are examined in this paper: 1) an improved wind speed forecasting using a rolling horizon ARIMA model; and 2) energy storage. This case study shows that combining renewable energy forecasting and energy storage is a promising solution which enhances diesel fuel savings as well as enables the isolated grid to further increase the annual renewable energy penetration from the current 30.4% up to 38% while reducing grid unreliability. In general, since renewable energy forecasting ensures more accurate scheduling and energy storage absorbs scheduling error, this solution is applicable to any small size isolated power grid with large renewable energy penetration.Item Open Access Interior lay-outs of housing: a proposal for the design of built-in furniture in the form of patterns(1992) Genç, Zeynep SabuncuoğluToday, a considerable number of studies are being carried out in the field of housing design. Among those, however, the number of studies pertaining to the inner organizations of housing designs do not seem to be adequate. In this specific study, problematic issues of furniture adaptation to housing schemes have been dealt with and it is claimed that the discipline of interior design should effectively be integrated into the decision making process of housing design. Along this line, the built-in furniture examples of traditional Turkish house and Le Corbusier's Modulor concept have been investigated. Further, the relation between user (urbanized family) and the furniture layouts of housing been touched upon following which a number of design proposals in the form of patterns are presented.