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:
Mar. 13, 2007
Filed:
Jul. 03, 2002
Patrick Pirim, Paris, FR;
Patrick Pirim, Paris, FR;
Other;
Abstract
A process and a device operating in real time for identifying and localizing an area in relative movement in a scene and determining the speed and oriented direction of the relative movement in real time. The process carries out temporal processing of a digital video input signal S(PI) that includes deducing, from the variations between the value of each pixel in a frame and in the immediately preceding frame, a binary signal DP identifying whether or not there was a significant variation and a digital signal CO representing the magnitude of this variation, and a spatial processing including distributing in a matrix these two signals successively for a single frame that is scanned through the matrix, and deducing the required relative movement and its parameters from this matrix distribution. The device includes a temporal processing unit associated with a memory and a spatial processing unit associated with a delay unit, a clock unit and control unit to control the rate of operation of the temporal and spatial processing units.