Optical monitoring apparatus with image-based distance...

Details Optical monitoring apparatus with image-based distance... Optical monitoring apparatus with image-based distance...

2007-07-03

2007-07-03

Ahmed, Samir (Department: 2623)

Image analysis

Applications

Motion or velocity measuring

C348S154000, C356S027000, C073S488000

Reexamination Certificate

active

09866011

ABSTRACT:
An optical monitoring system is capable of automatically identifying whether a moving body is a monitored subject based upon information in an optical (i.e., video) image. A moving body detection sub-system images a monitored region and detects a moving body from changes over time in the image of the monitored region. A speed detection sub-system detects the speed of a moving body in the image plane (i.e., speed of the moving body image in the image plane). A scale detection sub-system detects the size of a moving body in the image plane (i.e., size of the moving body in the image plane). A moving body estimation sub-system decides whether a moving body is the monitored subject (e.g., a human being) based on the image plane speed detected by the speed detection sub-system and the image plane size detected by the scale detection sub-system.

REFERENCES:
patent: 5559496 (1996-09-01), Dubats
patent: 5821896 (1998-10-01), Nakano et al.
patent: 6445409 (2002-09-01), Ito et al.
Foresti, G.L. (“A real-time system for video surveillance of unattended outdoor environments”; Circuits and Systems for Video Technology, IEEE Transactions on vol. 8, Issue 6, Oct. 1998 pp.: 697-704).
Jang et al. (“Extracting velocity information of multiple moving objects”; Surk-Woo Jang; Gye-Young Kim; Hyung-II Choi; Intelligent Vehicles Symposium, 1996., Proceedings of the 1996 IEEE Sep. 19-20, 1996 pp.: 136-140).

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