A 3D display with a linearly moving mirror to reflect a series of 2D cross sections and its application to noninvasive angiography.
A 3D display equipped with a linearly moving mirror reflecting a series of 2D cross sections pictures has been devised. The pictures were displayed by a CRT in perfect synchronization with the back-and-forth movements of the mirror. The 80x80x80 mm(3) 3D space contained 128x128 pixels; with each pixel having 256 grades of intensity, enough to produce a satisfactory 3D image of an ultrasonic echogram of hepatic vessels. The images can be observed from different angles by changing the observer's position or by prompt rotation of the image through a console. Mechanical problems inherent in using moving parts have been solved.
Yamanaka
R
R
Iwatsu Electr. Co. Ltd., Tokyo.
Yamamoto
K
K
Handa
N
N
Yoshikura
H
H