skip to main content
article
Free Access

Modeling motion blur in computer-generated images

Published:01 July 1983Publication History
Skip Abstract Section

Abstract

This paper describes a procedure for modeling motion blur in computer-generated images. Motion blur in photography or cinematography is caused by the motion of objects during the finite exposure time the camera shutter remains open to record the image on film. In computer graphics, the simulation of motion blur is useful both in animated sequences where the blurring tends to remove temporal aliasing effects and in static images where it portrays the illusion of speed or movement among the objects in the scene.

The camera model developed for simulating motion blur is described in terms of a generalized image-formation equation. This equation describes the relationship between the object and corresponding image points in terms of the optical system-transfer function. The use of the optical system-transfer function simplifies the description of time-dependent variations of object motion that may occur during the exposure time of a camera. This approach allows us to characterize the motion of objects by a set of system-transfer functions which are derived from the path and velocity of objects in the scene and the exposure time of a camera.

References

  1. 1 Andrews, H. C. and Hunt, B. R., Digital Image Restoration, Prentice Hall Inc., New Jersey, 1977 Google ScholarGoogle ScholarDigital LibraryDigital Library
  2. 2 Blinn, J., F., "Systems Aspects of Computer Image Synthesis and Animation", SIGGRAPH 1982 Tutorial NotesGoogle ScholarGoogle Scholar
  3. 3 Dainty, J. C., and Shaw, R., Image Science, Academic Press, New York, 1974Google ScholarGoogle Scholar
  4. 4 Goodman, J. W., Introduction to Fourier Optics, McGraw-Hill, Inc., New York, 1968, Chapter 4,5Google ScholarGoogle Scholar
  5. 5 Newell, M. E., Newell, R. G., and Sancha, T. L., "A New Approach to the Shaded Picture Problem", Proceedings of the ACM National Conference, 1972Google ScholarGoogle Scholar
  6. 6 Potmesil, M. and Chakravarty, I., "A Lens and Camera Model for Synthetic Image Generation", ACM Computer Graphics (Proc. SIGGRAPH 1981), 15, (3), 297-305, August 1981 Google ScholarGoogle ScholarDigital LibraryDigital Library
  7. 7 Potmesil, M. and Chakravarty, I., "Synthetic Image Generation with a Lens and Aperture Camera Model", ACM Transactions on Graphics, 1, (2), 85-108, April 1982 Google ScholarGoogle ScholarDigital LibraryDigital Library
  8. 8 Pratt, W. K., Digital Image Processing, Wiley-Interscience, New York, 1978 Google ScholarGoogle ScholarDigital LibraryDigital Library
  9. 9 Reynolds, C. W., "Computer Animation with Scripts and Actors", ACM Computer Graphics (Proc. SIGGRAPH 1982), 16, (3), 289-296, July 1982 Google ScholarGoogle ScholarDigital LibraryDigital Library
  10. 10 Roth, S., "Ray Casting for Modeling Solids", Computer Graphics and Image Processing, 18, (1), 109-144, January 1982Google ScholarGoogle ScholarCross RefCross Ref
  11. 11 Sawchuk, A. A., "Space-Variant Image Motion Degradations and Restorations", Proc. IEEE, 60, (7), 854-861, July 1972Google ScholarGoogle ScholarCross RefCross Ref
  12. 12 Sawchuk., A. A., "Space-Variant Image Restoration by Coordinate Transformation", JOSA, 64, (2), 138-144, February 1974Google ScholarGoogle ScholarCross RefCross Ref
  13. 13 Shack., R. V., "The Influence of Image Motion and Shutter Operation on the Photographic Transfer Function", Applied Optics, 3, (10), 1171-1181, October 1964Google ScholarGoogle ScholarCross RefCross Ref
  14. 14 Shelley., K. L., and Greenberg, D. P., "Path Specification and Path Coherence", ACM Computer Graphics (Proc. SIGGRAPH 1982), 16, (3), 157-166, July 1982 Google ScholarGoogle ScholarDigital LibraryDigital Library
  15. 15 Whitted., T., "An Improved Illumination Model for Shaded Display", Comm. ACM, 3, (6), June 1980, 343-349 Google ScholarGoogle ScholarDigital LibraryDigital Library

Index Terms

  1. Modeling motion blur in computer-generated images

                Recommendations

                Comments

                Login options

                Check if you have access through your login credentials or your institution to get full access on this article.

                Sign in

                Full Access

                • Published in

                  cover image ACM SIGGRAPH Computer Graphics
                  ACM SIGGRAPH Computer Graphics  Volume 17, Issue 3
                  July 1983
                  381 pages
                  ISSN:0097-8930
                  DOI:10.1145/964967
                  Issue’s Table of Contents
                  • cover image ACM Conferences
                    SIGGRAPH '83: Proceedings of the 10th annual conference on Computer graphics and interactive techniques
                    July 1983
                    420 pages
                    ISBN:0897911091
                    DOI:10.1145/800059

                  Copyright © 1983 ACM

                  Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

                  Publisher

                  Association for Computing Machinery

                  New York, NY, United States

                  Publication History

                  • Published: 1 July 1983

                  Check for updates

                  Qualifiers

                  • article

                PDF Format

                View or Download as a PDF file.

                PDF

                eReader

                View online with eReader.

                eReader