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:
Aug. 24, 2010
Filed:
May. 11, 2005
Murali Babu Muthukrishnan, Karnataka, IN;
Arvind Raman, Karnataka, IN;
Bhavani Gopalakrishna Rao, Karnataka, IN;
Manish Singhal, Karnataka, IN;
Sankaranarayanan Parameswaran, Karnataka, IN;
Sriram Sethuraman, Karnataka, IN;
Dileep Kumar Tamia, Karnataka, IN;
Murali Babu Muthukrishnan, Karnataka, IN;
Arvind Raman, Karnataka, IN;
Bhavani Gopalakrishna Rao, Karnataka, IN;
Manish Singhal, Karnataka, IN;
Sankaranarayanan Parameswaran, Karnataka, IN;
Sriram Sethuraman, Karnataka, IN;
Dileep Kumar Tamia, Karnataka, IN;
Ittiam Systems (P) Ltd., Bangalore, Karnataka, IN;
Abstract
A motion estimation algorithm finds the best match for a given block or macroblock so that the resulting error signal has very low energy level which is computed, for e.g., by the SAD method. The motion estimation algorithm also provides for an optional sub-pixel level estimation and an inter4v search, and allows for restricting the number of searches for a Frame-frame ME (motion estimation) using Top-Top and Bottom-Bottom field MEs. The algorithm provides for a selective early exit and enables selecting a suitable search area with N candidate points (4 to 8) for starting the search. The search is conducted progressively till a minimum error signal (low energy level signal) is reached. The candidate points for search may be in a diamond shaped configuration, and there may be a plurality of successive diamond configurations, the number of which is configurable. The invention has application in MPEG-4 and H.264 standards.