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:
Jun. 16, 2015
Filed:
Feb. 08, 2011
Aurelien Cord, Paris, FR;
Didier Aubert, Mennecy, FR;
Aurelien Cord, Paris, FR;
Didier Aubert, Mennecy, FR;
Abstract
Devices and methods for detecting of drops on a transparent wall through which digital image is acquired by means of an image acquisition system. The method includes establishing a gradient image from the digital image by assigning to each pixel the value of the gradient for the pixel; filtering the gradient image by assigning to each pixel a value obtained by rank filtering; and establishing a mask representing the position of the detected drops in the digital image by activating the pixels for which the difference between the value of the pixel in the filtered image and the value of the pixel in the gradient image exceeds a predetermined value.