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:
Feb. 22, 2011
Filed:
May. 25, 2006
Alexander Rav-acha, Jerusalem, IL;
Alexander Rav-Acha, Jerusalem, IL;
Abstract
A respective intensity gradient of a first spatially aligned pixel in each frame of a sequence of images is multiplied by a respective intensity or function thereof of a second pixel in the new frame, this being done for all pixels in the set and the resulting products being summed. This is repeated so that in one of the sums the first and second pixels have identical locations in the respective frames and where in each additional sum the second pixel is shifted by a non-zero shift relative to its location in other sums. The transformation is computed using intensity and gradient values of the image frames in the sequence and the sums. Weighted averages of at least two of the sums are stored and used together with the intensity and gradient values of the frames in the sequence to re-compute the transformation.