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. 28, 2013
Filed:
Jun. 12, 2007
Paul M. Hofman, Nuenen, NL;
Paul M. Hofman, Nuenen, NL;
Entropic Communications, Inc., San Diego, CA (US);
Abstract
In a global motion estimation, profiles (Prof, Prof, ProO, Prof) are determined of frames (FR, FR, FR, FR) of an input video signal. Each profile comprises a value, for each pixel in a first direction of the frame, which is obtained by combining pixels in a second direction of the frame. The profiles are updated (Upd Prof) with a first shift (Δx', Δx′, Δx′) to obtain updated profiles (Prof′, Prof′, Pro′), and the updated profiles are matched (S/M) to obtain a secondary shift (Δx′, Δx′). Preferably, the first shift is a zero shift. The updating may be effected by shifting one of the profiles over the first shift to obtain a shifted profile, and subtracting another one of the profiles from the shifted profile. If the second direction is the vertical direction, the profile may comprise a vertically combined (e.g. averaged) pixel value for each pixel in the horizontal direction.