A vehicle borne improvised explosive device (VBIED) is commonly used by insurgents and terrorists to cause military and civilian casualties as well as inflict severe damage to buildings and ...structures. In order to mitigate and protect against such a threat, a better understanding of the VBIED blast and fragmentation effects is needed. In this paper, the results of the modelling and simulation of VBIED effects on personnel using empirical data are presented. The human casualty predictions were made in terms of injury types and levels in a free field scenario using different software modelling tools. Based on these results, evacuation or safety distances for the particular VBIED scenarios used were determined.
A detailed database on the genealogy of the Makarska region in Croatia has been created. The twinning rate for three villages in the region (Podgora, Tučepi and Brela) were analysed over the period ...1870 to 1940 and factors such as mother's age and birth order are discussed. Of the three villages, Podgora was identified as having the highest twinning rate and consequently records for Podgora were examined further to include almost 400 years of historical data (from 1621 to 1950).
The ability to detect dangerous objects (such as improvised explosive devices) from a distance is important in security and military environments. Standoff imaging can produce images that have been ...degraded by atmospheric turbulence, movement, blurring and other factors. The number and size of pixels in the imaging sensor can also contribute to image degradation through under-sampling of the image. Establishing processes that enhance degraded or under-sampled infrared images so that objects of interest can be recognised with more certainty is important. Super-resolution image reconstruction and deconvolution methods are explored, as well as performance improvement measures.
The ability to detect dangerous objects (such as improvised explosive devices) from a distance is important in security and military environments. Standoff imaging can produce images that have been ...degraded by atmospheric turbulence, movement, blurring and other factors. The number and size of pixels in the imaging sensor can also contribute to image degradation through under-sampling of the image. Establishing processes that enhance degraded or under-sampled infrared images so that objects of interest can be recognised with more certainty is important. In this paper, super-resolution image reconstruction and deconvolution methods are explored, with an emphasis on quantifying and understanding human operator detection performance.
The ability to detect dangerous objects (such as improvised explosive devices) from a distance is important in security and military environments. Standoff imaging can produce images that have been ...degraded by atmospheric turbulence, movement, blurring and other factors. The number and size of pixels in the imaging sensor can also contribute to image degradation through under-sampling of the image. Establishing processes that enhance degraded or under-sampled infrared images so that objects of interest can be recognised with more certainty is important. Super-resolution image reconstruction and deconvolution methods are explored, as well as performance improvement measures.
Bibliography: leaves 108-113.
ii, 113 leaves ; 30 cm.
Title page, contents and abstract only. The complete thesis in print form is available from the University Library.
Thesis (Ph.D.)--University of ...Adelaide, Dept. of Applied Mathematics, 1998?
An experiment was conducted on human face recognition performance in an access control scenario. Ten judges compared fifty individuals to security ID style photos where 20% of the photos were of ...different people, assessed to look similar to the individual presenting the photo. Performance was better than that observed in the only other comparable live-to-photo experiment 1 with a false match rate of 9% CI95%: 2%, 16% in this study compared to 66% CI95%: 50%, 82% and a false reject rate of 5% CI95%: 0%, 11% compared to 14% CI95%: 0.3%, 28%. These differences were attributed to divergences in experimental methodology, especially with regards to the distractor tasks used. It is concluded that the figures provided in the current study are more appropriate estimates of performance in access control scenarios. Substantial individual variation in face matching abilities, response time and confidence ratings was observed.
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