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Patent US4965753A successfully refreshed from Google Patents.
US4965753A
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System for constructing images in 3-dimension from digital data to display a changing scene in real time in computer image generators
Assignee: Raytheon Co
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Filing: 1990-02-23
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Granted: 1990-10-23
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Expires: 2010-02-23
Abstract
Abstract A three-dimensional image processing system which reconstructs real-time display images from scene photographs. The system permits real-time projection of multiple, digitized, photographic databases into the eye space of an unconstrained observer. From the photographic databases, the system forms a composite output image as well as line-of-sight range overlay which permits easy expansion into a multi-channel architecture and to provide line-of-sight range envelope around the observer. The system allows for arbitrary insertion of three-dimensional, independently moving, opaque or partially transparent objects.
Inventors
- 👤 Werner Kraemer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:47
CPC Classifications
G; G06; G06T; G06T15/00; G06T15/10; G06T15/20; G06T15/205; Y; Y10; Y10S; Y10S345/00; Y10S345/949; Y10S345/953
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
163 words
A three-dimensional computer image generation system for constructing images from digital data to display a scene in real-time as viewed from a moving eyepoint, comprising: at least two pipeline circuit means to process image objects as viewed from at least two different eyepoint locations; each of said pipeline circuit means comprising: digital data storage means including input means to receive pixel brightness data and pixel distance data; and pixel processing means to transform pixel data received from said storage means to a characteristic for each pixel as viewed from a changing eyepoint location; frame occulting circuit means having an input to receive the transformed pixel data from each pipeline circuit means to determine priority between different image data at different distances for the same scene pixel and outputting the determined priority; and frame buffer storage means connected to the output of said frame occulting circuit means to retain temporarily a frame of processed scene data while the immediate past frame is being displayed.
Claim 2
Dependent Claim
163 words
A three-dimensional computer image generation system for constructing images from digital data to display a scene in real-time as viewed from a moving eyepoint, comprising: at least two pipeline circuit means to process image objects as viewed from at least two different eyepoint locations; each of said pipeline circuit means comprising: digital data storage means including input means to receive pixel brightness data and pixel distance data; and pixel processing means to transform pixel data received from said storage means to a characteristic for each pixel as viewed from a changing eyepoint location; frame occulting circuit means having an input to receive the transformed pixel data from each pipeline circuit means to determine priority between different image data at different distances for the same scene pixel and outputting the determined priority; and frame buffer storage means connected to the output of said frame occulting circuit means to retain temporarily a frame of processed scene data while the immediate past frame is being displayed.
Claim 3
Dependent Claim
32 words
A three-dimensional computer image generation system as defined in claim 1 wherein said pixel processing means includes means to determine priority between different data at different distances for the same image pixel.
Claim 4
Dependent Claim
39 words
A three-dimensional computer image generation system as defined in claim 2 wherein said means to determine priority between data for the same image pixel includes two occultor circuits, one for alternate frame data and one for intermediate frame data.
Claim 5
Dependent Claim
47 words
A three-dimensional computer image generation system as defined in claim 1 including video processing means connected to said frame buffer storage means for receiving a frame of processed scene data from said frame buffer storage means for adjusting the scene data to predetermined screen coordinates for display.
Claim 6
Dependent Claim
27 words
A three-dimensional computer image generation system as defined in claim 1 including means connected to said frame buffer storage means to display each frame of a scene.
Claim 7
Dependent Claim
48 words
A three-dimensional computer image generation system as defined in claim 1 including means connected to said frame buffer storage means to display each frame of a scene, and including means to determine priority between image data in said pixel processing means for each of said pipeline circuit means.
Claim 8
Dependent Claim
40 words
A three-dimensional computer image generation system as defined in claim 1 wherein said digital data storage means includes a data buffer storage means in which is collected individual azimuth, elevation and distance data as input to each pipeline circuit means.
Claim 9
Dependent Claim
38 words
A three-dimensional computer image generation system as defined in claim 7 including, for each of said pipeline circuit means, a laser video disc on which is stored database data prepared off-line to define each image to be processed.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-10-22 | 1994-04-23 | 1994-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-22 | 1998-04-23 | 1998-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-22 | 2002-04-23 | 2002-10-23 | $7700.00 | Window Closed / Lapsed |