n16 p. 35. Fink, Donald G. and Lytyens, David M. The Physics of Television Anchor Books Doubleday & Company, Incorporated Garden City, New York, 1960 PP. 17-82. Herrick, Clyde. "Principles of Colorimetry," Reston, Virginia. Reston Publishing, Incorporated A Prentice-Hall Company 1977, pp. 12-65. Leopold, George. "Fate of HDTV is now in lawmakers' hands," Electronic Engineering Times March 25, 1996 n894 p. 1. Leopold, George. "First HDTV broadcast studio set," Electronic Engineering Times April 1, 1996 n895 p. 1. Leopold, George. "New HDTV format offered," Electronic Engineering Times March 11, 1996 n892 p. 22. Noll, A. Michael. Television Technology: Fundamentals and Future Prospects Artech House, Incorporated Norwood, Massachusetts, 1988 pp. 9-151. Yoshida, Junko. "HDTV's story: fits, starts and setbacks," Electronic Engineering Times May 27, 1996 n903 p. 20. Yoshida, Junko. "High definition still elusive," Electronic Engineering Times June 10, 1996 n905 p. 35. This Page Intentionally Left Blank CODING AND COMPRESSION "God made integers, all else is the work of Leopold Kronecker, 1823 - - 1891 e experience the natural world through our senses. Our eyes and ears capture light and sound and then pass the sensations to our brains for processing. In much the same way, cameras and microphones detect and respond to the electromagnetic waves associated with light and sound and pass them, in analog form, for manipulation by audiovisual processing systems. Some audiovisual processing systems are analog (conventional broadcast television), and others are digital. The primary concern of this book is digital video communications; hence, this chapter begins with a discussion of digital encoding techniques. We refer to the process of converting a signal from analog to digital as encoding. For years, telephone companies have been encoding analog signals to transmit them digitally. Digital transmission systems have replaced most analog telephone networks in the industrialized world. The reasons include improved transmission qua