| 摘要 |
PURPOSE:To obtain a three-dimensional image like the inside of an object seen through an endoscope by performing coordinate conversion by center projection when each tomographic image is projected, constituting an image which is obtained by seeing the object from inside, and giving pixel values of respective pixel coordinates on a projection surface according to shading algorithm and shading the image. CONSTITUTION:When each tomographic image is projected on the projection surface, the pixel coordinates of the respective tomographic images are converted into coordinates on the projection surface by using the center projection and the pixel values are given to the respective pixel coordinates on the projection surface according to the shading algorithm to shade the image, thereby constituting the three-dimensional image. A CPU 50 reads out the tomographic images and programs for coordinate conversion and shading, constitutes the three-dimensional image which seems to be seen by looking at the inside of the object through an endoscope by using the main memory 51, and sends the result to a display memory 53, so that the image is displayed on a CRT monitor 54. A mouse 56 connected to a mouse controller 55 is used to specify a view point position, etc., when the three-dimensional image is constituted. |
