| 摘要 |
PURPOSE:To improve scanning line composite processing process, in order to solve the problem of incapability of smoothly connecting images due to difference in particle shape, etc., in any composite point because data of a scanning line is obtained by making a composition of plural echo data coming from plural focus areas. CONSTITUTION:A digital scan converter 11 comprises an input buffer 3 for memorizing an echo data on every scanning line; an arithmetic circuit 4 for inputting the echo data from the input buffer 3 and mutually correlating a plurality of echo data on every scanning line and a frame memory 5 for memorizing frame by frame the picture element data obtained by the arithmetic circuit 4. |
