CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 2564 > Article
Paper
22 August 1995 Counting pedestrians in the subway corridors using image processing
Roland Glachet, Salah Bouzar, Francois Lenoir, Jean-Marc Blosseville
Author Affiliations +
Proceedings Volume 2564, Applications of Digital Image Processing XVIII; (1995) https://doi.org/10.1117/12.217409
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States
Abstract
This paper presents a system based on image processing and dedicated to count the number of pedestrians walking across subway corridors. Results of its evaluation in real conditions and on a significant amount of passengers are given. The paper describes the experimental prototype able to deal with several cameras and working in real time on a PC. It shows difficulties met in the field trial procedure. The system can process images issued from several cameras hanging from the ceiling (the number of these cameras is a function of the corridor width). Detection is achieved using cooperative techniques: a particular texture is laid on the ground and viewed by the camera(s). This method allows us to enhance detection accuracy, especially in poor lighting conditions. The local destruction of this texture in the corresponding image gives us relevant information about the presence of people. Segmentation of the moving parts is performed: mathematical morphology operators are implemented. Detected pixels are thresholded and filtered. Finally, all the connected parts are labelled. The last step consists in tracking the moving parts provided by the previous step. Sequential analysis on images of the objects is done and a movement prediction is performed. Finally, this tracking allows us to compute the number of passengers passing a fictive line in both directions. This research has been undertaken jointly by INRETS and RATP (French subway operator for Paris).
© (1995) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Roland Glachet, Salah Bouzar, Francois Lenoir, and Jean-Marc Blosseville "Counting pedestrians in the subway corridors using image processing", Proc. SPIE 2564, Applications of Digital Image Processing XVIII, (22 August 1995); https://doi.org/10.1117/12.217409
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
INSTITUTIONAL
Select your institution to access the SPIE Digital Library.
SELECT YOUR INSTITUTION
PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
PERSONAL SIGN IN
No SPIE Account? Create one
PURCHASE THIS CONTENT
SUBSCRIBE TO DIGITAL LIBRARY
50 downloads per 1-year subscription
Members: $195
Non-members: $335 ADD TO CART
25 downloads per 1 - year subscription
Members: $145
Non-members: $250 ADD TO CART
PURCHASE SINGLE ARTICLE
Includes PDF, HTML & Video, when available
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 10 PAGES
DOWNLOAD PAPER SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Cameras
Image processing
Image compression
Image segmentation
Image analysis
Light sources and illumination
Mathematical morphology
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top