Vehicle position uncertainty area correction method and apparatu

Details Vehicle position uncertainty area correction method and apparatu Vehicle position uncertainty area correction method and apparatu

1993-03-05

1995-07-25

Chin, Gary

Boots, shoes, and leggings

364443, 342457, 340988, 340995, G06F16500

Patent

active

054368405

ABSTRACT:
In a preferred embodiment, a vehicle position uncertainty area correction method and a corresponding apparatus are detailed. This method is preferably executed on a hardware platform 400. This method includes provision of an initial position envelope (307) associated with a vehicle position. Then, a corrected position envelope (307"") is derived from the initial position envelope (307) and bounded within a predetermined fixed area (313, 315) surrounding an outermost pair (305, 309) of road segments. The outermost pair (305, 309) of road segments are extracted from a map database (415) positioned within boundaries delimited by the position envelope (307).

REFERENCES:
patent: 4774672 (1988-09-01), Tsunoda et al.
patent: 4796191 (1989-01-01), Honey et al.
patent: 4999783 (1991-03-01), Tenmoku et al.
patent: 5307278 (1994-04-01), Hermans et al.

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