Traditional pattern matching technology relies upon a pixel-grid analysis process commonly known as normalized correlation. Inspection engines that can inspect network content for application-layer information are urgently required. In-depth packet inspection engines, which search the whole packet payload, can identify the interested packets that contain certain patterns. Network equipment then utilizes the searching results from the inspection engines for application-oriented management. The most important technology for fast packet inspection is an efficient multi-pattern matching algorithm to perform exact string matching between packets and a large set of patterns.
KEYWORDS :
pattern matching,
pattern checking,
pattern matching analysis,
defect inspection system,
pattern inspection,
macro inspection,
visual and dimensional inspection,
machine vision inspection system.
