EP0366014A2
Expired / Lapsed
EP
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Three-dimensional image generator
Assignee: Oki Electric Industry Co Ltd
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Filing: 1989-10-20
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Granted: —
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Expires: 2009-10-20
Abstract
Abstract A three-dimensional image generator generates a random signal which it filters in two dimensions generate a realistic three-dimensional image of a natural object such as ocean waves or clouds. By performing the filtering operation repeatedly on overlapping intervals of the random signal, related images can be obtained to generate moving scenes at real-time rates. Two or more partial image generators can be connected in parallel to generate different directions of motion, or different parts of a complex scene. Within each partial image generator, two or more space filters can be connected in parallel to generate superimposed patterns, such as small ripples superimposed on large waves. This image generator is much faster than previous, fractal image generators.
Inventors
- 👤 Takuro Oki Electric Industry Co. Ltd. Sato
- 👤 Manabu Oki Electric Industry Co. Ltd. Kawabe
- 👤 Toshio Oki Electric Industry Co. Ltd. Kato
- 👤 Kiyohito Oki Electric Industry Co. Ltd. Tokuda
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 22:10
CPC Classifications
G; G06; G06T; G06T15/00; G06T13/00; G06T13/20; G06T13/60
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
55 words
A three-dimensional image generator, comprising: a random signal generator for generating a random signal; a space filter for receiving said random signal and performing a two-dimensional filtering operation to generate a three-dimensional image; space rotation means for rotating said three-dimensional image according to a viewing position; and image output means for displaying the space-rotated image.
Claim 2
Dependent Claim
55 words
A three-dimensional image generator, comprising: a random signal generator for generating a random signal; a space filter for receiving said random signal and performing a two-dimensional filtering operation to generate a three-dimensional image; space rotation means for rotating said three-dimensional image according to a viewing position; and image output means for displaying the space-rotated image.
Claim 3
Dependent Claim
27 words
The three-dimensional image generator of claim 1, wherein said space filter performs repeated filtering operations, using overlapping intervals of said random signal, to generate successive three-dimensional images.
Claim 4
Dependent Claim
109 words
A three-dimensional image generator, comprising: a plurality of partial image generators, each of which comprises a random signal generator for generating a random signal, a space filter for receiving said random signal and performing a two-dimensional filtering operation to generate a three-dimensional image, reorientation means for rotating the coordinate axes of said three-dimensional image, and amplitude adjustment means for adjusting the amplitude of said three-dimensional image; space synthesis means for receiving reoriented, adjusted three-dimensional images from respective partial image generators and creating a synthesized three-dimensional image; space rotation means for rotating said synthesized three-dimensional image according to a viewing position; and image output means for displaying the space-rotated image.
Claim 5
Dependent Claim
109 words
A three-dimensional image generator, comprising: a plurality of partial image generators, each of which comprises a random signal generator for generating a random signal, a space filter for receiving said random signal and performing a two-dimensional filtering operation to generate a three-dimensional image, reorientation means for rotating the coordinate axes of said three-dimensional image, and amplitude adjustment means for adjusting the amplitude of said three-dimensional image; space synthesis means for receiving reoriented, adjusted three-dimensional images from respective partial image generators and creating a synthesized three-dimensional image; space rotation means for rotating said synthesized three-dimensional image according to a viewing position; and image output means for displaying the space-rotated image.
Claim 6
Dependent Claim
31 words
The three-dimensional image generator of claim 3, wherein at least one of said space filters performs repeated filtering operations, using overlapping intervals of said random signal, to generate successive three-dimensional images.
Claim 7
Dependent Claim
79 words
A three-dimensional image generator, comprising: a random signal generator for generating a random signal; a plurality of space filters for receiving said random signal and performing two-dimensional filtering operations thereon to generate three-dimensional images; a filter output combiner for receiving said three-dimensional images from respective space filters and combining them to generate a combined three-dimensional image; space rotation means for rotating said combined three-dimensional image according to a viewing position; and image output means for displaying the space-rotated image.
Claim 8
Dependent Claim
79 words
A three-dimensional image generator, comprising: a random signal generator for generating a random signal; a plurality of space filters for receiving said random signal and performing two-dimensional filtering operations thereon to generate three-dimensional images; a filter output combiner for receiving said three-dimensional images from respective space filters and combining them to generate a combined three-dimensional image; space rotation means for rotating said combined three-dimensional image according to a viewing position; and image output means for displaying the space-rotated image.
Claim 9
Dependent Claim
27 words
The three-dimensional image generator of claim 5, wherein said space filters perform repeated filtering operations, using overlapping intervals of said random signal, to generate successive three-dimensional images.
Claim 10
Dependent Claim
135 words
A three-dimensional image generator, comprising: a plurality of partial image generators, each of which comprises a random signal generator for generating a random signal, a plurality of space filters for receiving said random signal and performing a two-dimensional filtering operation to generate a three-dimensional image, a filter output combiner for receiving said three-dimensional images from respective space filters and combining them to generate a combined three-dimensional image, reorientation means for rotating the coordinate axes of said combined three-dimensional image, and amplitude adjustment means for adjusting the amplitude of said combined three-dimensional images; space synthesis means for receiving reoriented, adjusted three-dimensional images from respective partial image generators and creating a synthesized three-dimensional image; space rotation means for rotating said synthesized three-dimensional image according to a viewing position; and image output means for displaying the space-rotated image.
Claim 11
Dependent Claim
135 words
A three-dimensional image generator, comprising: a plurality of partial image generators, each of which comprises a random signal generator for generating a random signal, a plurality of space filters for receiving said random signal and performing a two-dimensional filtering operation to generate a three-dimensional image, a filter output combiner for receiving said three-dimensional images from respective space filters and combining them to generate a combined three-dimensional image, reorientation means for rotating the coordinate axes of said combined three-dimensional image, and amplitude adjustment means for adjusting the amplitude of said combined three-dimensional images; space synthesis means for receiving reoriented, adjusted three-dimensional images from respective partial image generators and creating a synthesized three-dimensional image; space rotation means for rotating said synthesized three-dimensional image according to a viewing position; and image output means for displaying the space-rotated image.
Claim 12
Dependent Claim
31 words
The three-dimensional image generator of claim 7, wherein at least one of said space filters performs repeated filtering operations, using overlapping intervals of said random signal, to generate successive three-dimensional images.
References Cited (Backward Citations)
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