Boots – shoes – and leggings
Patent
1987-02-17
1989-07-11
Lall, Parshotam S.
Boots, shoes, and leggings
340937, 382 10, G08G 101
Patent
active
048477729
ABSTRACT:
A vehicle detection system for providing data characteristic of traffic conditions includes a camera overlooking a roadway section for providing video signals representative of the field (traffic scene), and a digitizer for digitizing these signals and providing successive arrays of pixels (picture elements) characteristic of the field at successive points in space and time. A video monitor coupled to the camera provides a visual image of the field of view. Through use of a terminal and in conjunction with the monitor, an operator controls a formatter so as to select a subarray of pixels corresponding to specific sections in the field of view. A microprocessor then processes the intensity values representative of the selected portion of the field of view in accordance with spatial and/or temporal processing methods to generate data characteristic of the presence and passage of vehicles. This data can be utilized for real-time traffic surveillance and control, or stored in memory for subsequent processing and evaluation of traffic flow conditions.
REFERENCES:
patent: 3663937 (1972-05-01), Bolner
patent: 3930735 (1976-01-01), Kerr
patent: 4214265 (1980-07-01), Olesen
patent: 4433325 (1984-02-01), Tanaka et al.
patent: 4490851 (1984-12-01), Gerhart et al.
patent: 4709264 (1987-11-01), Tamura et al.
Fitch Robert C.
Fundakowski Richard A.
Geokezas Meletios
Michalopoulos Panos G.
Black Thomas G.
Lall Parshotam S.
Regents of the University of Minnesota
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