Video pictures compression and coding with decision step for field/frame and motion vectors DCT

摘要

The efficiency of a method of coding video data according to a standard wherein several types of fields (P, B) beside reference or Intra (I) fields are identified and various coding options exist for said non-Intra fields (P, B) including the removal of temporal redundancy from non-Intra fields (P, B) by way of an algorithm of motion estimation and identification of predictor macroblocks providing the best approximation according to a prediction mode selectable among respective predicting modes of the different types of non-Intra fields (P, B), calculating the discrete cosine transform (DCT) for blocks of data of said macroblocks of data according to a frame mode of decomposition, wherein the blocks are composed of lines of data belonging to a even lines semifield and to a odd lines semifield or in a field mode of decomposition, wherein the blocks are composed of lines of data belonging to the same semifield, quantizing and coding the data resulting from said discrete cosine transform (DCT) carried out by blocks of data to be stored, is increased by operating a choice between field or frame modes and motion comparation or no motion comparation with an algorithm of assessment and comparison of significative complexity indexes of macroblocks.