| 摘要 |
PURPOSE:To shorten a factor analytic processing time by combining a main component analyzer and a factor image calculator with a picture element selector. CONSTITUTION:The picture element selector 6 includes an image adder, a count ratio comparator, a histogram display device, etc. The selector 16 adds data on respective picture elements from plural compressed images 14 in the time- base direction and the comparator rearranges picture elements in count-value decreasing order, so that a histogram is generated on a display device by using the picture elements. Then, this is regarded as an object internal organ, the main component analyzer 18 extracts a time radioactivity curve, and the factor image calculator 20 calculates a factor image based on the time radioactivity curve. Consequently, the object internal organ is obtained without setting any interested area and the factor analytic processing time is shortened. |
