Patent Document ID: 20080212099
Application ID: 11681148
Patent Status: 0

Claim One:
1. A method for counting people passing through a gateway, the method comprising: capturing substantially vertically downward images of the gateway; adding a first moving object to an object list when the first moving object crosses a first baseline according to a first image of the captured images; adding a second moving object to the object list when a image of the captured images subsequent to the first image indicates that the second moving object split from another moving object already in the object list; deleting a third moving object from the object list when a image of the captured images subsequent to the first image indicates that the third moving object merged with another moving object already in the object list; comparing each of the moving objects in the object list to predetermined area models for an estimated people count corresponding to each of the moving objects; applying a corresponding bounding box onto each of the moving objects in the object list; calculating color data of each of the moving objects in the object list for generating a corresponding color vector according to a predetermined algorithm; tracking each of the moving objects in the object list according to the corresponding color vector and the corresponding bounding box; and utilizing the corresponding estimated people count to count the people passing through the gateway when the corresponding moving object is tracked as crossing a second base line.