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:
Sep. 23, 1986
Filed:
Aug. 15, 1984
Jean-Yves Catros, Rennes, FR;
Franck Chapuis, Rennes, FR;
Francois Malo-Renault, Cesson-Sevigne, FR;
Thomson-CSF, Paris, FR;
Abstract
The method consists in computing a luminance and/or chrominance gradient indicator (I.sub.g) at each point of the image, in computing a threshold value (S(X.sub.o)) as a function of each gradient obtained, in measuring the inter-image luminance and/or chrominance difference of each point of the image, in comparing the inter-image difference obtained at each point with the corresponding computed threshold value, in applying the result of the comparison to the input of a density-filtering device in order to detect the density of moving points in proximity to each scanned point and to compare the density obtained in respect of each point with a predetermined density threshold value in order to provide an indication of moving points when the density at each point considered exceeds the predetermined density threshold value.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile