A Simple Instrument for Measuring Image Steadiness in 16-mm Motion-Picture Cameras

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: J SMPTE
Volume: 91, No. 7, pp. 644–647
Abstract: Frame-to-frame image registration errors in a 16-mm cine camera can be measured directly by the moiré fringes formed by a double exposure of a Fresnel zone pattern target. A simple instrument incorporating a target and lens that attaches directly to the camera under test was designed and built. If the Fresnel zone pattern images are displaced with respect to one another, linear image registration errors are converted into angular motion of the fringes; it then becomes possible to separately analyze in-track and cross-track errors. The necessary displacement between exposures is provided by the rotation of an off-center target. The test film can be projected with a conventional projector and an estimate of the registration errors obtained, or the film can be analyzed with a low-power microscope or single-frame analytical projector. It will be most suitable for testing cameras in research, manufacturing, and repair.
Publication Date: 1982-07-01
DOI: 10.5594/J00293
ISSN: Print: 0036-1682
Link: https://doi.org/10.5594/J00293
Author(s): Wu Ji-ZongSchool of Photographic Arts and Sciences at the Rochester Institute of Technology.
bio
Wu Ji-Zong, Richard N. Norman and John F. Carson. Wu Ji-Zong is Associate Professor and Chairman of the Precision Instruments Engineering Department at Tianjin University, Tianjin, People's Republic of China. The present work was done while he was a Visiting Scholar with the School of Photographic Arts and Sciences at the Rochester Institute of Technology, Rochester, NY 14623.
Richard N. NormanSchool of Photographic Arts and Sciences at the Rochester Institute of Technology.
bio
Wu Ji-Zong, Richard N. Norman and John F. Carson. Wu Ji-Zong is Associate Professor and Chairman of the Precision Instruments Engineering Department at Tianjin University, Tianjin, People's Republic of China. The present work was done while he was a Visiting Scholar with the School of Photographic Arts and Sciences at the Rochester Institute of Technology, Rochester, NY 14623.
John F. CarsonSchool of Photographic Arts and Sciences at the Rochester Institute of Technology.
bio
Wu Ji-Zong, Richard N. Norman and John F. Carson. Wu Ji-Zong is Associate Professor and Chairman of the Precision Instruments Engineering Department at Tianjin University, Tianjin, People's Republic of China. The present work was done while he was a Visiting Scholar with the School of Photographic Arts and Sciences at the Rochester Institute of Technology, Rochester, NY 14623.
Copyright: © 1982 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

A Method for Measuring the Steadiness of Motion Picture Cameras [Active]
A Method of Measuring the Steadiness of Motion-Picture Cameras [Active]
3. Oster G. Wasserman M. Zwerling C. , “Theoretical Interpretation of Moire Patterns,” J. Opt. Soc. Am. , 54 : 169 , 1964 . EXTERNAL
4. American National Standard , “Threaded Lens Mounts for 16-mm and 8-mm Motion-Picture Cameras,” ANSI PH22.76–1960 (R 1979). EXTERNAL

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Wu Ji-Zong, Richard N. Norman, and John F. Carson; A Simple Instrument for Measuring Image Steadiness in 16-mm Motion-Picture Cameras, SMPTE Journal ( Volume: 91, Issue: 7, July 1982); SMPTE, 1982. Available at https://doi.org/10.5594/J00293

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Wu Ji-Zong, Richard N. Norman, and John F. Carson; A Simple Instrument for Measuring Image Steadiness in 16-mm Motion-Picture Cameras, SMPTE Journal ( Volume: 91, Issue: 7, July 1982); SMPTE, 1982. Available at https://doi.org/10.5594/J00293

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<span class="citation">Wu Ji-Zong, Richard N. Norman, and John F. Carson; <cite>A Simple Instrument for Measuring Image Steadiness in 16-mm Motion-Picture Cameras</cite>, SMPTE Journal ( Volume: 91, Issue: 7, July 1982); SMPTE, 1982. Available at <a href="https://doi.org/10.5594/J00293" target="_blank" rel="noopener">https://doi.org/10.5594/J00293</a></span>

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Wu Ji-Zong, Richard N. Norman, and John F. Carson; <cite id="bib-10-5594-j00293">A Simple Instrument for Measuring Image Steadiness in 16-mm Motion-Picture Cameras</cite>, SMPTE Journal ( Volume: 91, Issue: 7, July 1982); SMPTE, 1982
<span class="doi">10.5594/J00293</span>
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