A study of closed circuit television systems was made which could be utilized t o supplement conventional teaching methods at College of Southern Utah. A basic , but complete studio installation for production work and radio-television class room instruction in addition to four , individual, self - contained installations a re recommended f or regular classroom use. All equipment is to be compatible and provide for complete interchangeability of tapes within the system. Present costs of distribution systems indicate that video t apes produced in the classroom, in the fi eld, or in the studio and played back in the class room would provide bette r utilization of available funds. It is recommended, however, that all future buildings be cabled with coaxial cable f or closed circuit te levisi on distribution . This form would be less costly and more versatile than microwave distribution. Included are re commendations of presently available, commercial equipment that satisfy the indicated needs.

The problem of this study was to determine to what extent industry was making use of closed circuit television as an implement of industrial security. The data for this study were provided by a group of thirty-two security chiefs of industry, and by another group of fifteen law enforcement officials in the Dallas and Fort Worth Metropolitan area. Of those industrial concerns making use of closed circuit television as an aid to security, a majority use the medium for surveillance of controlled access areas, with theft control and control of plant access following closely behind. For the most part, all surveyed thought that closed circuit television was very efficient.

The purposes of this study were (1) to compare the achievement levels of students enrolled in a beginning college mathematics course when taught by (a) closed-circuit television followed by student-assisted study periods, (b) closed circuit television followed by access to videotape replay with no supervised study periods, (c) closed-circuit television followed by unsupervised study and discussion, and (d) regular lecture-recitation methods conducted by the television instructor, and (2) to ascertain the students' attitudes toward their instructor, course, and method of instruction.

鑒於科技建警時代來臨，錄影監視系統運用範圍越來越廣泛，加上媒體大幅報導使用成效，導致新增議題持續不斷發生。本文先以預防犯罪角度探究錄影監視系統建置成因、運用及維護管理模式，取臺北市12個行政區2005年至2015年間各式刑案發生數，採竊盜案件發生數、強盜搶奪案件發生數及違反偽造文書印文案件發生數為被解釋變數，其中對照組為偽造文書印文案件發生數，監視器總數量為主要解釋變數，輔以守望相助組織、員警人數等與警政業務相關及多數犯罪實證研究文獻較常使用之解釋變數，從縱斷面及橫斷面的資料進行觀察，再透過「追蹤資料」（Panel Data）並運用「最小平方法」（Ordinary least squares,OLS）、固定效果模型及隨機效果模型進行資料分析，評估錄影監視系統數量配置上差異是否與刑案發生數有顯著關聯，藉以探討錄影監視系統建置數量多寡對於治安影響的程度。 研究發現，根據最小平方法的估計，監視器總數量與竊盜案件發生數呈負的顯著關聯，與強盜搶奪案件發生數及偽造文書印文案件發生數則無顯著關聯，顯示錄影監視系統僅對於特定類型刑案發生有犯罪預防效果，運用錄影監視系統雖然有利於破獲強盜搶奪案件，但在預防強盜搶奪案件發生效果並不顯著，同時驗證臺北市在錄影監視系統數量分配上並非僅以轄區人口數、土地面積及暴力、竊盜案件平均發生數為基礎。最後，本研究建議警政機關在錄影監視系統配置上應視影響刑案發生數之因素分配，如做整體預防犯罪決策應多考慮其他社會因子，在未來設置時，應適時變更宣導方向提高民眾治安滿意度，並針對系統設備有效管理維護，因時因地制宜，經由整合公私部門提高覆蓋率，以減少治安死角。 / In view of the coming of technical police age, the Closed-circuit television （CCTV） is applied more and more broadly. With the greatly reported effects by the press, new issues keep emerging. This article discovers the coming reasons, application and managed modes behind CCTV. We adopt the statics of the offense known to the police, larcenies, forceful taking and forgery from 2005 to 2015 among 12 districts in Taipei City as the dependent variable, the number of the forgery as the control group, and the number of monitors as the main response variable. We also take commonly used response variables in mutual help organizations, the number of the relevant police duties , and research papers of criminal evidence to observe the information vertically and horizontally , then conduct data analysis via Panel Data, Ordinary Least Squares （OLS）, Fixed Effect Model and Random Effect Model and estimate if there’s connection between the number of CCTV and criminal cases to see if the number of CCTV and has any impact on the public order. The research shows that the number of CCTV has significantly negative relevance with the larcenies, while forceful taking and forgery go opposite, according to the estimation of OLS. It shows that CCTV has positive influence on criminal prevention only to certain criminal cases. CCTV is benefit busting forceful taking, but not preventing it. Nevertheless, it proves that the distribution of CCTV in Taipei City isn’t just based on the district population, area, violence and the avg. number of force taking simultaneously. Finally, we suggest that Police Agency & Subordinate Branch allot CCTV depending on the factors of criminal cases. For example, considering more sociocultural factor when making decisions about criminal prevention and changing the ways of propaganda timely to improve the public order satisfaction. Furthermore, managing and maintaining system facilities effectively and change tactics as the situation and time demand to reduce the high crime rates by integrating public and private sectors and higher coverage.

Closed Circuit Television (CCTV) has been widely applied to crack down crimes. However, the comprehensive set-up of the CCTV in public space was controversial in terms of the issues of human rights, law, regulation, and of applications to detecting crimes. As the integration and application of CCTV are getting popular, it seems to be significant to explore the dilemmas of applying CCTV to collect information and meantime protecting people¡¦s privacy. The study is based on the architecture-oriented (AO), applying the method of situational crime privation (SCP) and architecture descriptive language (ADL) under the frame of Structure-Behavior Coalescence (SBC) of Enterprise Architecture (EA), to achieve the following goals: (1) to investigate the current CCTV management and regulation, (2) to construct a more appropriate CCTV management model, (3) to assure the public by making public the CCTV application procedure In the end, to increase the reliability and validity of the study, systematic observation approach was added to testify the operative and regulative procedures of using CCTV.

In recent years there has been a growing trend in optical wireless convergence. One particular aspect of this is 60 GHz radio-over-fiber technology. It is intended for use in wireless personal area networks. However, we think that the same technology could be used for monitoring applications in the indoor environment. It could be used to detect emergency situations or to detect intruders. We shall examine reasons why this choice might be a suitable one. We shall then propose a MAC layer protocol to accomplish this task. Since in case of emergency we might require to obtain data from only one node for an extended duration, flexibility in implementation is required. We shall develop an adaptive MAC protocol where this would be possible. We accomplish this by including two protocol modes called the Icarus mode, which is to be used in case of an emergency and the Resync mode which is used when normality is restored. A significant problem at high frequencies is that the beam becomes increasingly narrow and behaves more in a ray like condition. This implies that particularly in an indoor environment it is possible that the beam may be accidentally blocked. In this case the node must be able shift the beam in order to enable communication. We demonstrate three such strategies and offer a comparative analysis.

This thesis asks the research question In what ways do gender stereotypes inform the thoughts and actions of CCTV control room operators? Initially inspired by the problem of women’s lesser criminality, this research employs a police Closed Circuit Television (CCTV) control room ethnography to enable an exploration of the ways in which CCTV operators construct and interpret crime/deviance and sex/gender and what gender stereotypes they use to make sense of what they see on their screens. The fieldwork undertaken produces a social phenomenology of CCTV operators’ perceptions of potential crime/deviance, how these are gendered and their effects on surveillance practices. A framework for data analysis was iteratively developed. The themes it covers are: biological essentialism, social constructionism and the everyday reconciliation of theoretical problems through pragmatic solutions in the lived experience. These conceptual frames, drawn from criminological and gender theory, usefully allow the rethinking of gendered criminality/deviance and integral stereotyping. The interpretation of research findings using this framework indicates that operators' decision making is heavily based on stereotypes of sex/gender that are constructed through, and help to construct, corresponding incidences of crime/deviance, as well as a CCTV control room workplace culture. More specifically, the findings suggest that there are significant co-dependencies and co- productions of crime/deviance and sex/gender, which result in corresponding concepts and practices, and thus affinities between lay and academic theorising. These conclusions point to a need for further examination of the important consequences of assumptions contained in socially constructed stereotypes of sex/gender, especially in the context of social processes pertaining to crime/deviance, and their academic analysis and representation.

Thesis (M.Eng.). / Written for the Dept. of Electrical and Computer Engineering. Title from title page of PDF (viewed 2009/06/17). Includes bibliographical references.

Thesis (M.Sc.)--City University of Hong Kong, 2005. / Title from title screen (viewed on Jan. 10, 2006) "A dissertation submitted in partial fulfillment of the requirements for the degree of Master of Science in Engineering Management." Includes bibliographical references.

Submitted by Divisão de Documentação/BC Biblioteca Central (ddbc@ufam.edu.br) on 2016-02-04T15:29:28Z No. of bitstreams: 1 Dissertação -Roberlânio Melo.pdf: 2220610 bytes, checksum: 853fbfde1f919be543e94f5aedf34482 (MD5) / Approved for entry into archive by Divisão de Documentação/BC Biblioteca Central (ddbc@ufam.edu.br) on 2016-02-04T15:29:51Z (GMT) No. of bitstreams: 1 Dissertação -Roberlânio Melo.pdf: 2220610 bytes, checksum: 853fbfde1f919be543e94f5aedf34482 (MD5) / Approved for entry into archive by Divisão de Documentação/BC Biblioteca Central (ddbc@ufam.edu.br) on 2016-02-04T15:30:07Z (GMT) No. of bitstreams: 1 Dissertação -Roberlânio Melo.pdf: 2220610 bytes, checksum: 853fbfde1f919be543e94f5aedf34482 (MD5) / Made available in DSpace on 2016-02-04T15:30:07Z (GMT). No. of bitstreams: 1 Dissertação -Roberlânio Melo.pdf: 2220610 bytes, checksum: 853fbfde1f919be543e94f5aedf34482 (MD5) Previous issue date: 2012-12-14 / Não informada / This dissertation proposes a method of detecting natural gas leak in oil installations, specifically in onshore oil wells, applying pattern recognition techniques in digital images. Other methods of detecting natural gas leak found in the literature, has as its foundation the analysis of methane molecules, applying the catalytic principle or through the absorption of infrared spectrum. These methods have some disadvantages such as reduced service life and conditions of false negatives, respectively. The method of detecting natural gas leak proposed is based on the application of the concept of novelty filter in digital images originated from CCTV. For this, it was tested six different types of novelty filters. The difference between these filters is in the component type of color spaces (RGB or HIS) used in forming the training base of the respective filter. The best component that characterizes a natural gas leak was determined by performance measuring using ROC curves. The results obtained in the filter of novelty R are promising, with maximum sensitivity and specificity equal to 0,969 and 0,961 respectively, and average AUC of 98.527%. / O presente trabalho propõe um método de detecção de vazamento de gás natural em instalações petrolíferas, especificamente em poços onshore, aplicando técnicas de reconhecimento de padrões em imagens digitais. Outros métodos de detecção de vazamento de gás natural encontrados na literatura, têm como fundamento a análise de moléculas de metano, seja aplicando o princípio catalítico ou através da absorção do espectro infravermelho, estes apresentam algumas desvantagens como vida útil reduzida e condições de falsos negativos, respectivamente. O método de detecção de vazamento de gás natural proposto é baseado na aplicação do conceito de filtro de novidade em imagens digitais oriundas do sistema Closed-Circuit Television. Para tanto foram desenvolvidos seis tipos distintos de filtros de novidade, cuja diferença entre estes filtros está no tipo de componente dos espaços de cores RGB ou HSI utilizado na formação da base de treinamento dos respectivos filtros. A melhor componente que caracteriza um vazamento de gás natural foi determinado pelas medidas de desempenho obtidas nas curvas ROC destes filtros de novidade. Os resultados obtidos no filtro de novidade R são promissores, apresentando especificidade e sensibilidade máxima igual a 96,9% e 96,1%, respectivamente e AUC média de 98,527%.