Digital CCTV: A Security Professional's Guide (Hardcover)

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.

* Explains industry concepts, acronyms and buzzwords acurately and clearly
* Covers history, current complexities, and the future effects of digital science
*Provides practical information about how digital video works, how digital video is stored and transmitted, what digital systems can and cannot accomplish, and what to expect from digital video equipment in modern CCTV systems

數位科技對安全產業的影響需要安全分銷商、銷售人員和安裝專業人員保持持續警覺。今天和可預見的未來，所有安全專業人員都必須至少具備基本的數位科技理解能力。《數位閉路電視》正是針對這個新挑戰而撰寫的。

本書涵蓋的主題包括壓縮變數，如無損和有損壓縮，通過回顧 Huffman 和 Run Length Encoding (RLE) 來解釋，並將這些壓縮形式與個人電腦中常用的 ZIP 和 Stuffit 相關聯。此外，本書還提供了對 JPEG、動態 JPEG、MPEG 和小波壓縮等壓縮方案的評估，並比較了每種方案的優點。《數位閉路電視》追溯了數位視頻從電腦產業到壓縮、傳輸、顯示和存儲的流程，並解釋了如何將類比視頻信號轉換為數位信號，讓讀者能夠學習和理解數位科學的奧秘。

本書還準確清晰地解釋了行業概念、縮寫和流行詞彙，涵蓋了數位科學的歷史、當前複雜性以及未來的影響。此外，本書還提供了關於數位視頻的工作原理、存儲和傳輸方式、數位系統的能力和限制，以及現代閉路電視系統中數位視頻設備的預期效果的實用信息。