05850254 is referenced by 205 patents and cites 18 patents.

An environment recognition device formed in such a manner that an image sensor is installed so that an image sensor mounting location recognition mark falls within an image pickup area, comparator for comparing mark locations the images of which are picked up sequentially by the image sensor with respect to the initial location of the recognition mark in the image pickup area is provided, and, when it is detected that the mark location recognized sequentially has changed with respect to the initial location, an indication signal for indicating that correction of the location of installing the image sensor is required is outputted, thereby to prevent erroneous decision in image processing when the mounting position changes by vibration, contact or the like.

Title
Imaging system for a vehicle which compares a reference image which includes a mark which is fixed to said vehicle to subsequent images
Application Number
8/456394
Publication Number
5850254
Application Date
June 1, 1995
Publication Date
December 15, 1998
Inventor
Makoto Shioya
Tokyo
JP
Eiryoh Ondoh
Hitachinaka
JP
Yasunari Tanaka
Mito
JP
Tatsuhiko Monzi
Hitachinaka
JP
Kazuaki Takano
Mito
JP
Agent
Antonelli Terry Stout & Kraus
Assignee
Hitachi
JP
IPC
H04N 7/00
H04N 5/228
H04N 5/225
H04N 7/18
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