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    • Digital CCTV

      A Security Professional's Guide
      • 1st Edition
      • Emily M. Harwood
      • English
      The effects of digital technology on the security industry require constant vigilance by security distributors, sales staff, and installation professionals. Today and for the foreseeable future, all security professionals must have at least a basic understanding of digital technology. Digital CCTV addresses this new challenge. Topics convered include compression variables such as Lossless and Lossy, which are explained by reviewing Huffman and Run Length Encoding (RLE), and by relating these forms of compression to ZIP and Stuffit, which are commonly used in personal computers. A review of JPEG, motion JPEG, MPEG and wavelet compression schemes among others, with a comparison of the merits of each, is also provided. As Digital CCTV traces the stream of digital video flow from the computer industry through compression, transmission, display and storage, and explains how analog video signal is converted into a digital signal, the reader will learn and understand the mysteries of digital science.

    • Media and the American Child

      • 1st Edition
      • George Comstock + 1 more
      • English
      Media and the American Child summarizes the research on all forms of media on children, looking at how much time they spend with media everyday, television programming and its impact on children, how advertising has changed to appeal directly to children and the effects on children and the consumer behavior of parents, the relationship between media use and scholastic achievement, the influence of violence in media on anti-social behavior, and the role of media in influencing attitudes on body image, sex and work roles, fashion, & lifestyle. The average American child, aged 2-17, watches 25 hours of TV per week, plays 1 hr per day of video or computer games, and spends an additional 36 min per day on the internet. 19% of children watch more than 35 hrs per week of TV. This in the face of research that shows TV watching beyond 10 hours per week decreases scholastic performance. In 1991, George Comstock published Television and the American Child, which immediately became THE standard reference for the research community of the effects of television on children. Since then, interest in the topic has mushroomed, as the availability and access of media to children has become more widespread and occurs earlier in their lifetimes. No longer restricted to television, media impacts children through the internet, computer and video games, as well as television and the movies. There are videos designed for infants, claiming to improve cognitive development, television programs aimed for younger and younger children-even pre-literates, computer programs aimed for toddlers, and increasingly graphic, interactive violent computer games.

    • CCTV Surveillance

      Video Practices and Technology
      • 2nd Edition
      • Herman Kruegle
      • English
      This revision of the classic book on CCTV technology, CCTV Surveillance, provides a comprehensive examination of CCTV, covering the applications of various systems, how to design and install a system, and how to choose the right hardware. Taking into account the ever-changing advances in technology using digital techniques and the Internet, CCTV Surveillance, Second Edition, is completely updated with the recent advancements in digital cameras and digital recorders, remote monitoring via the Internet, and CCTV integration with other security systems. Continuing in the celebrated tradition of the first edition, the second edition is written to serve as a useful resource for the end-user as well as the technical practitioner. Each chapter begins with an overview, and presents the latest information on the relevant equipment, describing the characteristics, features and application of each device. Coverage of aging or obsolete technology is reduced to a historical perspective, and eight brand new chapters cover digital video technology, multiplexers, integrated camera-lens-housing, smart domes, and rapid deployment CCTV systems.

    • CCTV for Security Professionals

      • 1st Edition
      • Alan Matchett
      • English
      CCTV for Security Professionals provides the information necessary to design the ideal CCTV system. The chapters are stand-alone sources of information on their subjects and are presented in logical sequence to guide the reader from basic principles to more complex for a complete system understanding.In his straight-forward and informative text, Alan Matchett approaches the camera systems from the user's point of view, providing the security manager with the knowledge to discuss the system, its desired features, and the areas of design concern within the context of an organization's business model. This can prove to be invaluable when evaluating an existing system, the use and components of a given system, or in evaluating a system design proposed by a vendor.Installers and service personnel will benefit from the functions and possibilities that are available with the various components and by gaining an understanding of their customers' needs. Newer technicians will learn how to set up the system properly, and can familiarize themselves with the technologies that go into a CCTV system. Security equipment sales personnel will also gain a better knowledge of the customer's needs as well as learn to determine exactly what questions they should be asking the customer and what the customer's responses mean. In this manner, the book will offer invaluable tips to ensure customers get exactly what they expect in a system.

    • Television

      What's on, Who's Watching, and What it Means
      • 1st Edition
      • George Comstock + 1 more
      • English
      Television: What's On, Who's Watching, and What It Means presents a comprehensive examination of the role of television in one's life. The emphasis is on data collected over the past two decades pointing to an increasing and in some instances a surprising influence of the medium. Television is not only watched but its messages are attended to and well understood. There is no shame in spending hours in front of the set, in fact, people over-estimate the time they spend viewing. Television advertising no longer persuades--it sells by creating a burst of emotional liking for the commercial. The emphases of television news determine not only what voters think about but also the presidential candidate they expect to support on election day. Children and teenagers who watch a great deal of television perform poorly on standardized achievement tests, and among the reasons are the usurpation of time spent learning to read and the discouragement of book reading. Television violence frightens some children and excites others, but its foremost effect is to increase aggressive behavior that sometimes spills over into seriously harmful antisocial behavior.