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SMPTE Meetings and Conferences ( November 1999)
[ACTIVE]

Cinema Projection Distortion

Metadata

Publisher
SMPTE — White Plains, NY
Doc Type
Conference Paper
Content Type
Original Research
Volume
1999, No. 8, pp. 1–14
Abstract
This paper addresses projected image Distortion in a cinema setting. Several types of distortions are defined and examples are presented to show that the degree of distortion in the image can be calculated based on the theater geometry as well as the film format and projector lens specifications. This paper concentrates on inherent distortion values that typically effect the overall shape of the picture area and the relative shapes of all subjects being viewed as well as the audience's perception of imaged picture quality. Since distortion changes only the shape of objects in the picture and not how well the viewer can see them, there is little basis for objectively derived design limits. Further, when viewing a real scene that does not contain a perfect rectilinear test grid, the eye accommodates small amounts of distortion, which is therefore not perceived. However, moderate to severe amounts of distortion, and particularly distortion in memory objects such as curved horizons and leaning or curved flagpoles, is disturbing to viewers.
Publication Date
1999-11-01
DOI
10.5594/M00323
Link
https://doi.org/10.5594/M00323
Author(s)
Ronald A. PetrozzoSchneider Optics, Inc, Hauppauge, New York
bio
Stuart W. Singer is a Senior Optical Engineer and Lens Designer with more than 20 years experience. He is Director of Technology for Schneider Optics, Inc. Mr. Singer holds a Bachelor of Science Degree in Physics from Hofstra University, Hempstead, NY.
Stuart W. SingerSchneider Optics, Inc, Hauppauge, New York
bio
Ronald A. Petrozzo is an Optical Engineer and Optical Systems Designer with more than 15 years experience. Mr. Petrozzo holds a Bachelor of Science Degree in Optics and a Master of Science Degree in Optics, both from the University of Rochester, Rochester, NY, as well as a Master of Science Degree in Computer Science from Polytechnic University, Farmingdale, NY.
Copyright
© 1999 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

  • 1. Smith Warren J. , Modern Optical Engineering , 2nd ed. , 1990 , McGraw-Hill, Inc. EXTERNAL
  • 2. Kingslake Rudolf , Optical System Design , 1983 , Academic Press, Inc. EXTERNAL
  • 3. Farrell Richard J. Booth John M. , Design Handbook For Imagery Interpretation Equipment , 1984 , Boeing Aerospace Co. EXTERNAL
  • 4. Military Standardization Handbook, Optical Design, MIL- HDBK—141, US Department of Defense. EXTERNAL
  • 5. Sasian Jose M. , “Image Plane Tilt in Optical Systems” , Optical Engineering /March 1992 / Vol. 31 No. 3 , AT&T Bell Laboratories . EXTERNAL
  • 6. Venning Albert L. Jr. , “Trapezoidal Distortion in Projected Images” , Journal of the SMPTE /June 1968 / Vol. 77 . EXTERNAL
  • 7. SMPTE Engineering Guideline EG 18–1994, Design of Effective Cine Theaters, March 1994 . EXTERNAL
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Ronald A. Petrozzo and Stuart W. Singer; Cinema Projection Distortion, SMPTE Meetings and Conferences ( November 1999); SMPTE, 1999. Available at https://doi.org/10.5594/M00323
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Ronald A. Petrozzo and Stuart W. Singer; Cinema Projection Distortion, SMPTE Meetings and Conferences ( November 1999); SMPTE, 1999. Available at https://doi.org/10.5594/M00323

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Ronald A. Petrozzo and Stuart W. Singer; Cinema Projection Distortion, SMPTE Meetings and Conferences ( November 1999); SMPTE, 1999. Available at https://doi.org/10.5594/M00323
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<span class="citation">Ronald A. Petrozzo and Stuart W. Singer; <cite>Cinema Projection Distortion</cite>, SMPTE Meetings and Conferences ( November 1999); SMPTE, 1999. Available at <a href="https://doi.org/10.5594/M00323" target="_blank" rel="noopener">https://doi.org/10.5594/M00323</a></span>

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Ronald A. Petrozzo and Stuart W. Singer; Cinema Projection Distortion, SMPTE Meetings and Conferences ( November 1999); SMPTE, 1999
doi: 10.5594/M00323
url: https://doi.org/10.5594/M00323
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<li>
Ronald A. Petrozzo and Stuart W. Singer; <cite id="bib-10-5594-m00323">Cinema Projection Distortion</cite>, SMPTE Meetings and Conferences ( November 1999); SMPTE, 1999
<span class="doi">10.5594/M00323</span>
</li>