Patent · US Active

Method and device for detecting fog at night

US9171216B2 · kind B2 · utility

0Cited by

3References

15Claims

0Family size

Assignee

INSTITUT FRANÇAIS DES SCIENCES ET TECHNOLOGIES DES TRANSPORTS DE L'AMENAGEMENT ET DES RESEAUX (IFSTTAR) · FR

Inventors

Romain Gallen · Paris, FR
Aurélien Cord · Paris, FR
Nicolas Hautiere · Paris, FR
Didier Aubert · Mennecy, FR

Key dates

Filing date	Sep 28, 2011
Grant date	Oct 27, 2015
Priority date	—
Expiry date	May 13, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG01N2021/4709
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method of detecting the presence of an element (fog, rain, etc. . . . ) disturbing the visibility of a scene illuminated by a headlight (105, 107) at night. The method comprises: The method provides satisfactory results in an environment with or without lighting. The invention also provides a computer program and a device for implementing the method.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.