| 摘要 |
PROBLEM TO BE SOLVED: To shorten the time of photographing image by measuring the volumetric image of the object to be detected previously, re-arranging the measured data on the cross section that is intended and a part of the measured data corresponding to a cross section the same cross sectional position as a desired cross section in a field to be detected. SOLUTION: In case of photographing the cross section of a subject 9 that is intended, at first, the volumetric image of all the field to be detected that contains the cross section of intention is measured in order to obtain the data of volumetric image that can be three-dimensionally expressed by making use of the measured data. Secondly, the cross section to be photographed is determined in the field. Then, the cross sectional image is two-dimensionally transformed by Fourier transformation and the data that corresponds to the plain image that is cut out can be gotten. The cross section to be photographed in the real space should be selected and measured by the information of the direction and position in order to get a plain image of the cross section that is cut out. The cross sectional image that is measured is reconstructed by the data of the plain image. The measured data that is rearranged is transformed by Fourier transformation, then the plain image at a new time can be obtained and made to show in the display part 7. |
