Three-dimensional image display apparatus using numerical projec

Details Three-dimensional image display apparatus using numerical projec Three-dimensional image display apparatus using numerical projec

1991-06-21

1995-05-02

Jankus, Almis

Boots, shoes, and leggings

395127, 395119, 36441316, G06F 1562

Patent

active

054127645

ABSTRACT:
An imaginary plane and a projection plane are set on both sides of three-dimensional image data to be parallel to each other. A plurality of projection rays are projected from the imaginary plane onto the projection plane. Sampling points for pixel values are set on each projection ray. Pixel values at the sampling points are interpolated by using the three-dimensional image data. The maximum value, integral value, standard deviation, and the like of such interpolated pixel values on the projection rays are projected on the projection plane when the sampling points are set, constant sampling periods are set, but the sampling start points are determined by using random numbers for the respective projection rays. With this operation, the phases of the sampling points on all the projection rays are set to be different from each other, thereby preventing moire, on a projected image, which occurs when interpolated pixel values periodically vary.

REFERENCES:
patent: 4216526 (1980-08-01), Karwowski
patent: 4472822 (1984-09-01), Swift
patent: 4676596 (1987-06-01), Kato et al.
patent: 4691366 (1987-09-01), Fenster et al.
patent: 4879652 (1989-11-01), Nowak
patent: 4882679 (1989-11-01), Tuy et al.
patent: 4945478 (1990-07-01), Merickel et al.
patent: 5124914 (1992-06-01), Grangeat
C. L. Dumoulin, et al., "Three-Dimensional Phase Contrast Angiography", Sep. 27, 1988, pp. 139-149.
Gonzalez et al, Digital Image Processing, Addison-Wesley Pub. Co., 1987, pp. 139-190.

Affiliated with

Also associated with

Rating

Three-dimensional image display apparatus using numerical projec does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Three-dimensional image display apparatus using numerical projec, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Three-dimensional image display apparatus using numerical projec will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1144523