Patent ID: 7453940
Filing Date: 2008-11-18
Classification: H04N

Abstract:
1. An apparatus comprising: an external memory; a first circuit configured to (i) copy a plurality of first reference samples of a first reference image from said external memory, said first reference samples being proximate a first offset from a first corner of said first reference image and (ii) generate a first motion vector corresponding to a first current block of a current image by searching among said first reference samples; and a second circuit configured to (i) copy a plurality of second reference samples of said first reference image from said external memory, said second reference samples being proximate a second offset from said first corner of said first reference image, said second offset being different than said first offset and said second reference samples being non-adjacent said first reference samples and (ii) generate a second motion vector corresponding to said first current block by searching among said second reference samples, wherein (i) said first offset comprises a small offset pointing to a first position in said first reference image, said first position being approximately co-located with a center of said first current block and (ii) said second offset comprises a large offset pointing to a second position in said first reference image, said second position being distant from said first position and said second position corresponding to a global offset associated with fast moving data in said current image.