| 摘要 |
PURPOSE:To obtain a scintigram emphasizing a color shade contrast real-time with ease unblanking a region where the number of the signals for delineating points for every matrix image region is more than a prearranged value. CONSTITUTION:X, Y coordinate signals which are output by a position computation circuit 5 at time of scintigram data collection, are applied to an image output device 7 through sample hold circuits 11, 12. At the same time, the said signals are turned to image region address signals which are matrix-split through the intermediary of A/D converters 13, 14 and preset counter 20 and then the said signals access a memory 15 where delineating point signals are written by a crest analysis circuit 6 through a control circuit 16. If the number of delineating point signals is below a reference value set by a comparator 19, delineating point signals are written into the memory 15 from the circuit 6 through a preset counter 17 which sets an address at a value of +1 and the hold of the circuits 11, 12 is cancelled. In the meantime, if the said number is above the reference value, the device 7 is unblanked through the circuit 16. Thus it is possible to output a scintigram emphasizing a color shade contrast real-time under a simple constitution.
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