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:
Oct. 27, 2009
Filed:
Dec. 07, 2005
Daniel Warren Tapson, London, GB;
Daniel Warren Tapson, London, GB;
Sony United Kingdom Limited, Weybridge, GB;
Abstract
A data processing apparatus includes a registration processor that divides a frame of a water marked image into a plurality of image blocks. For each of the image blocks, an observed probability of possible distortion vectors representing shifts of the image block with respect to positions of the block in the original version of the image is estimated. For each of the image blocks, forward and backward probability distribution estimates of possible distortion vectors within the image block are generated recursively from the respective observed probability of distortion vectors for the image block and forward and backward probability distribution estimates determined respectively from previous and subsequent image blocks for a predetermined path through the blocks. For each image block, the forward and backward probability distribution estimates and the observed probability of distortion vector are combined to form a most likely distortion vector estimate.