METHOD FOR TRANSMITTING ORTHOGONAL TRANSFORMATION CODING DATA

摘要

PURPOSE:To reduce the effect of the occurrence of an error when the coefficient data generated in orthogonal transformation coding is transmitted. CONSTITUTION:The coefficients data of 8X8 are generated by that the image blocks of 8X8 are DCT transformed. The DC components of the coefficient data are arranged on the first area of the head of a transmission unit block. The coefficient data AC1-AC5 whose importance is higher among the coefficient data of an AC component are arranged in a second area except the first area in the transmission unit block. That is, the second area is divided into five pieces of third areas, and the AC1-AC5 are arranged on the third areas respectively. The length of the third areas are set equal to the maximum length of a code generated in variable length coding.