0827127-A1 is referenced by 15 patents and cites 6 patents.

An apparatus and method for correctly determining the position of a vehicle in a traffic lane by obtaining correct information about the position of the traffic lane without being affected by variations in the road surface, weather, time of day, or such imaging conditions as fixed or moving lighting, are provided. An edge signal (SH) of a high spatial frequency component and a luminance signal (SL) of a low spatial frequency component of a digital image signal (Si) representing the view of the local area (Vi) to the front of a vehicle are extracted. A road contour signal (Sre) is then extracted from the edge signal (SH), and a road region signal (Srr) is extracted from the luminance signal (SL). The position of the lane Sre is then detected with high precision by evaluating the lane contour Sre based on the road region signal Srr and lane contour data Sre.

Title
Local positioning apparatus, and method therefor
Application Number
EP19970306531 19970827
Publication Number
0827127 (A1)
Application Date
August 27, 1997
Publication Date
March 4, 1998
Inventor
Kaneko Mamoru
JP
Iisaka Atsushi
JP
Yasui Nobuhiko
JP
Assignee
Matsushita Electric
JP
IPC
G08G 01/16
G08G 01/16
G08G 01/04
G06T 07/00
G06T 05/00
G05D 01/02
G06T 01/00
G08G 01/16
G08G 01/04
G06T 07/00
G06T 05/00
G05D 01/02
G06T 01/00
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