| 摘要 |
PROBLEM TO BE SOLVED: To provide a transfer device which is capable of performing fast coordinate transformation in a simple constitution by preparing a bus line for carrying out direct memory access(DMA) data transfer between a transfer originating memory and a transfer destination memory, and an adder which calculates the address of the transferring or transferred side, etc. SOLUTION: A bus line 7 performs a DMA data transfer between a transfer originating memory 5 and a transfer destination memory 6, and an adder calculates the address of a transferring or transferred side. Then the adder scans image data stored in the memory 5 and to be measured by performing sequential addition or subtraction of X and Y addresses of the transferring or transferred side, based on displaced variables of X and Y addresses in a direction parallel to an axis, where the planes including the images before and after conversion of projection respectively cross each other. The image data stored in the memory 5 are transferred directly via the line 7, and accordingly the image data after the projection converted are stored in the memory 6. |
