Introduction to video CODECs : MJPEG, MPEG-4, H.264

[Editor's note: John Honovich publishes this and other information on network video at]

Fundamental Principle of CODECs

CODECs reduce the amount of bandwidth and storage needed at the expense of using more CPU cycles.

basic bandwidth tutorial

CODECs Overview

  • Compress the individual image by itself

  • Compress a series of images together

Looking at Current Video Surveillance Systems


About the author: John Honovich, PSP, is an independent researcher and consultant focused on the world of networked video surveillance. He is author of and has previously worked in product development and management positions at security technology companies such as 3VR and Sensormatic.