| 摘要 |
PURPOSE:To obtain an image with high spatial resolution by finding the image of interest cross section with the aid of interpolation from plural pairs of parallel tomographic image groups. CONSTITUTION:At an image collection part, the first (the second) parallel tomographic image groups A1, A2,...An, An+1,..., AN, (B1, B2,...Bm, Bm+1,..., BM) parallel with a plane inclining with an angle of theta2 (theta1) in the body axis (x) direction of a body to be inspected are collected with a slice pitch (t), then being stored at a storage part 3. An interest cross section designation part 4 designates the interest cross section of the body to be inspected with a coordinate input, etc., and an interpolation processing part 5 interpolates and finds a picture element value on the interest cross section from the first and the second parallel cross section image groups. Therefore, when a picture element value P on an optional picture element position P(p, q, r) at the interest cross section C is found, four images An, An+1, Bm, and Bm+1 enclosing the picture element P(p, q, r) are used, and an interpolation process is performed based on coordinate values Sn, Sn+1, Sm, and Sm+1 at an intersection between perpendiculars from each of images and the picture element P(p, q, r). A display device 6 displays the image of the interest cross section C based on the picture element value on the interest cross section C found at the interpolation processing part 5.
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