| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and a device for improving the resolution of image, and a method for enlarging a part of projected image in real time SOLUTION: The resolution of image is improved by interpolating a bandshaped limited three-dimensional (3D) image data set 200 before projecting it on a 2D image plane 222. A 3D magnetic resonance ungeography image data set 200 is divided into plural sub-volumes 202 and the sub-volumes 202 are respectively interpolated and projected on the 2D image plane 222. In order to perform interpolation, discrete cosine transformation(DCT) 206 is used, transformed sub-volumes 208 are expanded by zero charging and zero-charged sub-volumes 212 are inversely transformed. |
