Algorithm for counting the number of persons using IR image processing

Author

Nakamura, Jin ; Tomita, Yutaka ; Honda, Satoshi

Author_Institution

Dept. of Instrum. Eng., Keio Univ., Yokohama, Japan

fYear

1994

fDate

10-12 May 1994

Firstpage

220

Abstract

For security purpose, the counter for the number of persons who pass a door is required. Several kinds of counters, such as the automatic wickets of stations or the rotation-bar entrances of museums, parks have developed. But these are in contact with persons or obstruct the paths because non-contact type of those call not count correctly. We propose an algorithm for non-contact counting of the number of persons without the recognition of each individuals. The algorithm is for infrared (IR) images and the images are processed in a personal computer with a frame-memory board. The images were replayed with a video deck in off-line manner and the algorithm exhibits to give the accuracy of 90%

Keywords

access control; computer vision; image processing equipment; image recognition; infrared imaging; safety; IR image processing; automatic wickets; counting; frame-memory board; museums; noncontact counting; parks; personal computer; rotation-bar entrances; security; Charge coupled devices; Computer graphics; Counting circuits; Error correction; Image processing; Instruments; Microcomputers; Pixel; Security; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 1994. IMTC/94. Conference Proceedings. 10th Anniversary. Advanced Technologies in I & M., 1994 IEEE

Conference_Location

Hamamatsu

Print_ISBN

0-7803-1880-3

Type

conf

DOI

10.1109/IMTC.1994.352087

Filename

352087