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1.
The ability to detect gun and gun held in hand or other body parts is a typical human skill. The same problem presents an imperative task for computer vision system. Automatic observer independent detection of hand held gun or gun held in the other body part, whether it is visible or concealed, provides enhance security in vulnerable places and initiates appropriate action there. Compare to the automatic object detection systems, automatic detection of gun has very few successful attempts. In the present scope of this paper, we present an extensive survey on automatic detection of gun and define a taxonomy for this particular detection system. We also describe the inherent difficulties related with this problem. In this survey of published papers, we examine different approaches used in state-of-the-art attempts and compare performances of these approaches. Finally, this paper concludes pointing to the possible research gaps in related fields. 相似文献
2.
Fog computing has emerged to support the requirements of IoT applications that could not be met by today’s solutions. Different initiatives have been presented to drive the development of fog, and much work has been done to improve certain aspects. However, an in-depth analysis of the different solutions, detailing how they can be integrated and applied to meet specific requirements, is still required. In this work, we present a unified architectural model and a new taxonomy, by comparing a large number of solutions. Finally, we draw some conclusions and guidelines for the development of IoT applications based on fog. 相似文献
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通过对高程拟合方案的建立 ,详细分析了拟合点分布不同和一次、二次函数拟合对高程拟合带来的影响 ,并提出了提高水准拟合精度的一些有效措施 ,最后就拟合的精度作了适当的分析 相似文献
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在对RTK技术进行简要介绍的基础上,叙述了这一技术在黄土塬地区地震勘探测量中的应用,及所取得的良好测量资料。 相似文献
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加强石油天然气工业的立法,是社会主义市场经济发展与油气勘查开采实践的需要。针对现行油气管理法规在矿种管理体制,相邻采矿权人关系,油气采矿人主体资格,解决采矿权纠纷等未明事项,运用法学理论进行了剖析;阐述了加强油气立法工作的必要性和紧迫性;并有针对性地提立法建议,以期引探讨和有关部门重视。 相似文献
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Dr GS Yakubu 《Renewable Energy》1996,8(1-4)
This paper presents a study of a user-experience survey about living in passive solar homes. It was carried out at the Energy Park located in the western part of Milton Keynes. The survey focuses on the reality of living in passive solar homes as perceived or experienced by the occupant. It is hoped that the findings would come to bear on strategic passive solar design decisions that would address the improvement of the well-being of the occupant.. The survey is aimed at assessing user satisfaction with the overall performance of their homes as well as a study of some of the problems that are believed to be common in passive solar housing.Results from the survey seem to indicate that the majority of those who buy passive solar homes are motivated to do so by a desire for thermal comfort at low cost. The building aesthetics is the second most important factor, showing that passive solar home lovers are also conscious of the quality of the architectural design. The overall performance of passive solar homes in this study, with regard to thermal and visual comfort, seems to be generally satisfactory. Statistical analysis showed some significant association between some important environmental design parameters. 相似文献
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北美和欧洲消失模铸造发展现状 总被引:5,自引:0,他引:5
2001-2002年美国和德国相继召开了3个有关消失模铸造研讨会,共交流45篇报告。报告归纳出北美和欧洲在消失模铸造研究上有3大热点:开展消除铝合金消失模铸造缺陷的研究;完善发泡模具及白区制模技术;探索消失模铸造模拟和快速原型制造技术。介绍了国外消失模铸造企业现状,指出我国消失模铸造与世界先进消失模技术的3大差距。 相似文献