| 摘要 |
PURPOSE:To disassemble and watch up to finer an object than detector width (sample interval) by using opening width of a detector row of a CT device. CONSTITUTION:At a reverse filter processing part 106, as a table memory storing a gain of a filter function, a table memory 92 is installed besides a table memory 19 for usual blur correcting filter function, and the product of both memories is used as filter function. For measured projection data, data are expanded to data length of two times by interpolation. In expanded projection data, blur is corrected at a filter processing part 106, and the re-composed image is obtained at a two-dimensional buffer memory 101 as a dislocation image at a reverse projection processing part 107. The re-composed image is converted to a video signal at a video DA converter 103 and displayed to CRT104. |
