Method and apparatus for displaying three-dimensional image

Details Method and apparatus for displaying three-dimensional image Method and apparatus for displaying three-dimensional image

1997-03-07

1999-03-16

Porta, David P.

X-ray or gamma ray systems or devices

Specific application

Absorption

378 4, 378901, 600410, A61B 602, A61B 100

Patent

active

058839330

ABSTRACT:
A three-dimensional image is displayed on a display in a central projection method based upon a viewpoint which is placed at the inside of an object and a line of sight. In this case, a plurality of tomographic images interposed between the viewpoint and a projection plane are sequentially arranged and displayed on a display screen. Polygon visual field frames are formed at points of intersection of projection lines forming a polygon pyramid and each tomographic image, and the visual field frames are displayed on the display screen. Thereby, the position of the viewpoint and the line of sight with respect to the currently-displayed three-dimensional image showing the inside of the object can be easily detected, and the part of the object which is being displayed can be easily recognized.

REFERENCES:
patent: 5611025 (1997-03-01), Lorensen et al.
patent: 5694530 (1997-12-01), Goto

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