The digital 3 dimensional cubic measure which includes x-ray absorption value the fault picture (10) is drawn up from (1), being the method the x-ray panorama fault picture for especially dentistry being drawn up, 3 dimensional cubic measure as a subject as for (1), the x-ray illuminant of imagination (4 15) as for the fault picture (10) which is irradiated hypothetically of making use, occurs hypothetically, the hypothetical detector (5 16 61,62,63) it is photographed of making use. Hypothetical x-ray source (4,15) and hypothetical detector (5 16 61,62,63), while becoming dim and the clear layer which has the part forming (3), passing by the side of subject, it moves hypothetically.X線吸収値を含むデジタル3次元体積(1)から断層画像(10)を作成する、特に歯科用X線パノラマ断層画像を作成する方法であって、被写体としての3次元体積(1)は、仮想のX線光源(4;15)を用いて仮想的に照射され、仮想的に発生する断層画像(10)は、仮想検出器(5;16;61,62,63)を用いて撮影される。仮想X線源(4,15)及び仮想検出器(5;16;61,62,63)は、ボケ部分を備えた鮮明層(3)を形成しながら、被写体の側を通って仮想的に移動する。
