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:
May. 27, 1986
Filed:
Jul. 09, 1984
Jean-Yves Catros, Rennes, FR;
Thomson-CSF, Paris, FR;
Abstract
In a method for detection of moving points in a television image for digital television systems providing conditional-replenishment bit-rate compression, the image is split-up into blocks of N.times.M points, the points of one block being located at the intersections of N lines and M columns of the image. The N.times.M inter-image differences between values of luminance and/or of chrominance are converted to N.times.M coefficients by means of an orthogonal transformation. The absolute values of the coefficients obtained are compared with one or a number of predetermined reference thresholds in order that the points placed at the center of a block should be stated as moving when the absolute value of at least one coefficient obtained as a result of this transformation is higher than at least one predetermined reference threshold. The device comprises an array of shift registers for storing the inter-image differences, a matrixing element for calculating the coefficients and a decision element.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile