Boots – shoes – and leggings
Patent
1994-04-15
1996-09-17
Ramirez, Ellis B.
Boots, shoes, and leggings
G06F 1700
Patent
active
055575439
ABSTRACT:
Apparatus suitable for tracking a road vehicle from an aerial platform uses a correlator (5) for processing data received from a thermal imager (1). The apparatus derives a binary template for use by the correlator (5), the template (13) being based on points of high curvature (12) in an object to be tracked. The invention shows a significant reduction in mistracking and drift compared with conventional correlation trackers under the conditions of high density of features similar in nature to the object of interest, such as typifies the imagery obtained from a ground-pointing camera mounted on an aerial platform.
REFERENCES:
patent: 5036474 (1991-07-01), Bhanu et al.
patent: 5103484 (1992-04-01), Stafford et al.
patent: 5390125 (1995-02-01), Sennott et al.
patent: 5432712 (1995-07-01), Chan
Hwang et al: "A Visual Feedback Control system for Tracking and Zooming a Target", Proceedings Of The 1992 International Conference On Industrial Electronics, Control, Instrumentation And Automation, Nov. 9-13, 1992, pp. 740-745, XP356727.
Baroni, et al: "Assessing LV wall motion by frame to frame curvature matching and optical flow estimation", Computers In Cardiology, Sep. 23-26, 1991, IEEE Computer Society Press, pp. 477-480 XP312461.
British Aerospace Public Limited Company
Ramirez Ellis B.
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