Patent ID: 6219455
Filing Date: 2001-04-17
Classification: H04N

Abstract:
A motion vector detecting apparatus, comprising:a first storage unit for storing a portion of top-field pixel data, said portion including only pixels of either the odd-numbered rows or odd-numbered columns of a search area within said top-field;a second storage unit for storing a portion of top-field pixel data, said portion including only pixels of either the even-numbered rows or even-numbered columns of a search area within said top-field;a third storage unit for storing a portion of bottom-field pixel data, said portion including only pixels of either the odd-numbered rows or odd-numbered columns of a search area within said bottom-field;a fourth storage unit for storing a portion of bottom-field pixel data, said portion including only pixels of either the even-numbered rows or even-numbered columns of a search area within said bottom-field;a fifth storage unit for storing at least interleaved pixel data among pixel data of a reference block;a selector for selecting pixel data of a predetermined search block from among the pixel data stored in said first storage unit through said fourth storage unit;a first calculator for performing a calculation to obtain a difference between each pixel of the pixel data of the search block selected by said selector and each corresponding pixel of the pixel data of the reference block stored in said fifth storage unit, thereby generating a plurality of pixel differences;a second calculator for performing a calculation to obtain a sum of the pixel differences obtained by said first calculator; anda detector for detecting a search block corresponding to a minimum value of the calculation performed by said second calculator when said calculations of said first and second calculator are performed for a plurality of predetermined search blocks selected by said selector.