| 摘要 |
A VIDEO ENCODER AND CORRESPONDING METHOD ARE PROVIDED FOR ENCODING VIDEO SIGNAL DATA FOR AN IMAGE BLOCK AND A PARTICULAR REFERENCE PICTURE INDEX TO PREDICT THE IMAGE BLOCK, WHERE THE ENCODER (100) INCLUDES A FAST SEARCH BLOCK MOTION ESTIMATOR (180) FOR PROVIDING MOTION VECTORS CORRESPONDING TO THE AT LEAST ONE PARTICULAR REFERENCE PICTURE, THE MOTION ESTIMATOR COMPRISING A FAST SEARCH BLOCK MATCHING PORTION FOR PERFORMING FAST SEARCH BLOCK MATCHING WHILE EXCLUDING NON-OPTIMAL SEARCH POINTS IN ACCORDANCE WITH A COMPARISON OF A NORMALIZATION OF THE IMAGE BLOCK PIXELS AGAINTS A NORMALIZATION OF THE REFERENCE PICTURE PIXELS, THE FAST SEARCH BLOCK MATCHING PORTION HAVING AN OUTPUT RESPONSIVE TO THE AT LEAST ONE PARTICULAR REFERENCE PICTURE; AND THE CORRESPONDING METHOD (200) INCLUDES RECEIVING A SUBSTANTIALLY UNCOMPRESSED IMAGE BLOCK (212), BLOCK MATCHING (214) THE IMAGE BLOCK IN CORRESPONDENCE WITH AT LEAST ONE PARTICULAR REFERENCE PICTURE WHILE EXCLUDING NON-OPTIMAL SEARCH POINTS IN ACCORDANCE WITH A COMPARISON OF A NORMALIZATION OF THE IMAGE BLOCK PIXELS AGAINTS A NORMALIZATION OF THE REFERENCE PICTURE PIXELS, COMPUTING (216) MOTION VECTORS CORRESPONDING TO A DIFFERENCE BETWEEN THE IMAGE BLOCK AND THE AT LEAST ONE PARTICULAR REFERENCE PICTURE, AND MOTION COMPENSATING (218) THE AT LEAST ONE PARTICULAR REFERENCE PICTURE IN CORRESPONDENCE WITH THE MOTION VECTORS. |
