  Various methods to automate traffic data collection have recently been
developed by many researchers. A macroscopic data collection through image
processing has been proposed. For microscopic traffic flow data, such as
individual speed and time or distance headway, tracking of individual movement
is needed. The tracking algorithms for pedestrian or vehicle have been
developed to trace the movement of one or two pedestrians based on sign
pattern, and feature detection. No research has been done to track many
pedestrians or vehicles at once. This paper describes a new and fast algorithm
to track the movement of many individual vehicles or pedestrians
