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  • 1
    facet.materialart.
    Unknown
    Springer
    Publication Date: 2014-06-11
    Description: Video surveillance has significant application prospects such as security, law enforcement, and traffic monitoring. Visual traffic surveillance using computer vision techniques can be non-invasive, cost effective, and automated. Detecting and recognizing the objects in a video is an important part of many video surveillance systems which can help in tracking of the detected objects and gathering important information. In case of traffic video surveillance, vehicle detection and classification is important as it can help in traffic control and gathering of traffic statistics that can be used in intelligent transportation systems. Vehicle classification poses a difficult problem as vehicles have high intra-class variation and relatively low inter-class variation. In this work, we investigate five different object recognition techniques: PCA + DFVS, PCA + DIVS, PCA + SVM, LDA, and constellation-based modeling applied to the problem of vehicle classification. We also compare them with the state-of-the-art techniques in vehicle classification. In case of the PCA-based approaches, we extend face detection using a PCA approach for the problem of vehicle classification to carry out multi-class classification. We also implement constellation model-based approach that uses the dense representation of scale-invariant feature transform (SIFT) features as presented in the work of Ma and Grimson (Edge-based rich representation for vehicle classification. Paper presented at the international conference on computer vision, 2006, pp. 1185-1192) with slight modification. We consider three classes: sedans, vans, and taxis, and record classification accuracy as high as 99.25% in case of cars vs vans and 97.57% in case of sedans vs taxis. We also present a fusion approach that uses both PCA + DFVS and PCA + DIVS and achieves a classification accuracy of 96.42% in case of sedans vs vans vs taxis.
    Print ISSN: 1687-5281
    Electronic ISSN: 1687-5176
    Topics: Electrical Engineering, Measurement and Control Technology
    Published by Springer
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Russian chemical bulletin 9 (1960), S. 84-87 
    ISSN: 1573-9171
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary 1. Ethylaluminum bromides are more active catalysts than aluminum chloride for the alkylation of aromatic hydrocarbons with cyclohexene. 2. Along the series o-xylene, m-xylene, toluene, p-xylene the yield of monocyclohexyl derivative diminishes and the yield of di- and poly-cyclohexyl derivatives increases.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The conversion of 1-butene into cis- and trans-2-butene on alumina TA 600 catalyst with and without60Co γ-radiation field, correlated with literature data, is presented. Irradiation sources, reaction set-up and analysis of the products are presented.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The characterisation by radiothermoluminescence /RTL/ method of alumina TA 600 catalyst used for 1-butene isomerisation in cis- and trans-2-butene is described. The glow curve, the RTL parameters and the catalyst-reactant radiative coupling evidenced by RTL method are presented. Using the correlation between catalytic activity and RTL data a catalytic activity model is suggested. On the basis of such a model the importance of the structural defects of the catalyst and/or support for the catalytic activity is explained.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Была исследована каталитическая дегидроциклизация вторбутибензола на модифицированном промышленном катализаторе SB-RD-150. Катализатор Pt/Al2O3 был модифицирован промотированием с помощью Pd, Ir, Co, Re и Au; концентрация металла была 0,6%. Были определены некоторые корреляции между электронными свойствами металлических компонентов в промотированных катализаторах и их каталитической активностью в дегидроциклизации втор-бутилбензола.
    Notes: Abstract The catalytic dehydrocyclization of sec-butylbenzene on a modified SB-RD-150 industrial catalyst has been studied. The Pt/Al2O3 catalyst has been modified by promotion with Pd, Ir, Co, Re, Au; the metal concentration was 0.6%. Some correlations between the electronic properties of the metallic components in the promoted catalysts and their catalytic acivity in the dehydrocyclization of sec-butylbenzene have been estableshed.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Reaction kinetics and catalysis letters 37 (1988), S. 301-305 
    ISSN: 1588-2837
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Abstract Приводится исследование методом ЭПР ZnO, нанесенного на различные количества термически обработанного γ-Al2O3. Экспериментальные данные объясняются электронным строением ZnO/γ-Al2O3 и сравниваются со специфической активностью к процессу десульфурирования природного газа.
    Notes: Abstract ESR investigations on ZnO doped with various amounts of γ-Al2O3 thermally treated, are reported. Experimental data are related to the electronic structure of ZnO-γ-Al2O3 and to desulfurization specific activity for natural gas.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Acta mathematica hungarica 31 (1978), S. 27-35 
    ISSN: 1588-2632
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The present paper reports correlations between data obtained by the radiothermoluminescence (RTL) method and the catalytic activity of active aluminas. The correlations between the intensity of RTL signals, glow peak temperatures and activation energy obtained by RTL and the data referring to the history, catalytic activity and activation energy of the catalyzed reaction, require the use of RTL as a supplementary method in the characterization of catalysts. The results underline the role of structural defects in the catalyst (or support) on the catalysis as illustrated by the present model.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    ISSN: 0449-2951
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The correlation between the catalytic activity of the system Al(C2H5)3-Ti(OC4H9)4 and its electrical conductivity in stereospecific polymerization was investigated. The activity of the catalyst was evaluated for varying molar ratios of Al/Ti (in the range of 0.75-6) and reaction temperatures (in the range of -78 to +70°C.) by means of the velocity of absorption of the acetylene. The ionic state of the catalytic complex may be assessed on the basis of electrical conductivity measurements. The electrical conductivity of the pure state of the two catalyst components is in the range of 10-12 or 10-10 (ohm-cm.)-1 while that for the catalyst complex is of the order of 10-8 (ohm-cm.)-1. The experimental data prove the existence of a correlation between the velocity of reaction, the composition of the catalyst complex, and the electrical conductivity. The values obtained for the activation energy of the electrical conductivity correlate with the energy required to break the complex ion aggregate of the catalyst and therefore with the activity of the catalyst.
    Additional Material: 13 Ill.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    International urology and nephrology 15 (1983), S. 31-35 
    ISSN: 1573-2584
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Starting out from a series of theoretical considerations, and checked clinically, the authors describe an original technique for prostatic adenomectomy, being more efficient in limitation of surgical haemorrhage, urinary infection and postoperative hypogastric fistulae. The operative technique and its results in comparison with classic techniques are presented.
    Type of Medium: Electronic Resource
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