抄録
The authors have developed a new method of 3-dimensional display of CT images of human brain. Many former researchs on 3-D display of CT images have employed displaying surfaces of components, such as hematoma or ventricle, for example, extracted using image processing techniques. But those components are not sufficiently reliable because their grey levels (CT levels) differ little from those of the surrounding tissues.
The method we propose applies image processing only for the skull surface whose grey levels differ widely from other tissues and display the surface combined with an original image and a reconstructed image of arbitrary direction. Hence the result is highly reliable and the full automatic processing by computer is possible.
In addition, the whole procedure can be implemented using a rather small computer according to some contrivances on hidden surface elimination and so on.
