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 Title: |
US5329310:
Method and apparatus for controlling distortion of a projected image
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Liljegren, Gordon E.; Burbank, CA
Redmann, William G.; Simi Valley, CA
Watson, Scott F.; Glendale, CA
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| Assignee: |
The Walt Disney Company, Burbank, CA
other patents from WALT DISNEY COMPANY (617665) (approx. 101)
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| Published / Filed: |
1994-07-12
/ 1992-06-30
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| Application Number: |
US1992000907108
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| IPC Code: |
Advanced:
A63G 31/00;
G03B 21/10;
G03B 37/00;
G09B 9/32;
H04N 3/23;
H04N 5/16;
H04N 5/262;
H04N 5/74;
H04N 13/00;
H04N 17/04;
H04N 17/00;
IPC-7:
H04N 7/18;
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| ECLA Code: |
H04N13/02A3; G09B9/32C; H04N9/31S3; H04N9/31T1; H04N17/04; T04N13/02A3; T04N13/02Y;
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| U.S. Class: |
Current:
348/147;
348/039;
348/046;
348/121;
348/143;
348/744;
348/E13.015;
348/E13.025;
348/E17.005;
Original:
348/147;
348/121;
348/143;
348/039;
348/046;
348/144;
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| Field of Search: |
358/108,104,87,209,93
382/044
359/718,728,364,363
395/137-139
434/043,44,40
H04N 718
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| Priority Number: |
| 1992-06-30 |
US1992000907108 |
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| Abstract: |
A method and apparatus for displaying an image that is subject to multiple distortions substantially without distortion is provided. The image is recorded from a first viewpoint and subject to a first distortion and played back from a second viewpoint and subject to a second distortion. The display surface may also be distorted (e.g., curved). By mapping back through the projector to the screen and through the camera (at the viewpoint), the image is transformed so that it can be viewed from the viewpoint with little or no distortion.
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| Attorney, Agent or Firm: |
Rogers, Laurence S. ;
Ingerman, Jeffrey H. ;
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| Primary / Asst. Examiners: |
Groody, James J.; Burgess, Glenton B.
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| Maintenance Status: |
CC Certificate of Correction issued
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| INPADOC Legal Status: |
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Family Legal Status Report
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| Designated Country: |
AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE
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| Family: |
Show 5 known family members
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First Claim:
Show all 152 claims |
What is claimed is:
1. A method of displaying an image of a subject on a display surface having a display surface shape and a display surface position, for observation from a viewpoint having a viewpoint position at which said display surface subtends a first field of view, said displayed image having a controlled amount of distortion, said method comprising the steps of:
- recording source image visual data for said image by transforming source visual data of said subject through a first distorting transformation process with respect to a recording point at which said subject subtends a second field of view which is at least partially contained within said first field of view at said recording point;
- transforming said recorded source image visual data through an intermediate transformation process to produce target image visual data; and
- playing back said target image visual data from a playback point having a playback point position at which said display surface subtends a third field of view and such that said subject image subtends at said viewpoint a fourth field of view at least partially contained within said first field of view of said viewpoint, through a second distorting transformation process; wherein:
- said first and second distorting transformation processes, and said intermediate transformation process are selected so that said second and fourth fields of view are substantially identical, thereby causing said controlled amount of distortion.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 58 U.S. patent(s) that reference this one
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| Foreign References: |
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| Other Abstract Info: |
DERABS G1994-009622
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| Other References: |
Dorsey, J., "Computer Graphics for the Design and Visualization of Opera Lighting Effects: A Thesis Presented to the Faculty of the Graduate School of Cornell University in Partial Fulfillment of the Requirements for the Degree of Master of Science," Jan. 1990.
Dorsey, J., "Design and Simulation of Opera Lighting and Projection Effects", Computer Graphics, vol. 25, No. 4, pp. 41-50 (ACM Siggraph, Jul. 1991).
Wolberg, G., Digital Image Warping, IEEE Computer Society Press Monograph, 1992.
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