The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 18, 2017
Filed:
May. 31, 2013
Denso Corporation, Kariya, Aichi-pref., JP;
Nippon Soken, Inc., Nishio, Aichi-pref., JP;
Kazuhisa Ishimaru, Nagoya, JP;
Naoki Kawasaki, Kariya, JP;
Shunsuke Suzuki, Aichi-ken, JP;
Tetsuya Takafuji, Anjo, JP;
DENSO CORPORATION, Kariya, Aichi-pref., JP;
NIPPON SOKEN, INC., Nishio, Aichi-pref., JP;
Abstract
In vehicle-lane boundary line detection, low-luminance values are acquired from areas corresponding to below a tire and directly below a vehicle center based on a road surface image. A snow rut degree is calculated based on a luminance ration between the areas. A probability is calculated from a map based on the calculated snow rut degree. A parameter indicating the degree of snow rut likeness is calculated by a low-pass filtering process. A snow rut determination is made by the calculation result being compared with a predetermined threshold. A final determination of whether or not a snow rut is present is made, with reference to an outside temperature. When determined that a snow rut is present, a determination is made not to perform the detection. When determined that a snow rut is not present, a determination is made to perform the detection.