Assessing Psychophysics Functions for Frame Rate Perception

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Conference Paper
Content Type: Original Research
Volume: 2017, No. 10, pp. 1–13
Abstract: In past research at Rochester Institute of Technology (RIT), a temporal texture space was defined. It was used to classify what attributes contribute to the perceived motion quality of stroboscopic reproductions. One of these attributes was determined to be the content's captured and displayed frame rate. Using knowledge from this and other past frame rate research and psychophysics, a comprehensive experiment was set up to see if a just noticeable difference (JND) could be found for changes in frame rate. Thresholds were tested starting with base conditions of 24 FPS, 48 FPS, and 72 FPS due to their significance to the motion picture industry. After a verification pilot study, 77 observers in total participated in the experiment. The collected data points to a resulting JND threshold between 26 FPS and 28 FPS for the 24FPS test point, but a significantly noisier signal was determined for both the 48FPS and 72 FPS test points. Explanation for this nosier signal could be a lack of consistent detectability in human perception at these higher frame rates. This experiment is presented as one in a series of studies into stroboscopic motion perception at RIT.
Publication Date: 2017-10-23
DOI: 10.5594/M001801
ISBN: Print: 978-1-61482-959-1
Link: https://doi.org/10.5594/M001801
Author(s): Elizabeth DoValeRochester Institute of Technology
David LongRochester Institute of Technology
Keyword(s): HFR, Frame Rate, FPS, Just Noticeable Difference (JND), Perception, Motion Quality
Copyright: © 2017 Society of Motion Picture and Television Engineers, Inc.

Bibliographic Reference(s)

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Trumbull, D. "Conversion of high to low frame rate motion picture films." U.S. Patent No. 4,889,423. EXTERNAL
Reed, T. Edward, and Arthur R. Jensen. "Conduction velocity in a brain nerve pathway of normal adults correlates with intelligence level." Intelligence 16.3 (1992): 259-272. EXTERNAL
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Elizabeth DoVale and David Long; Assessing Psychophysics Functions for Frame Rate Perception, SMPTE Meetings and Conferences ( October 2017); SMPTE, 2017, ISBN: 978-1-61482-959-1. Available at https://doi.org/10.5594/M001801

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Elizabeth DoVale and David Long; Assessing Psychophysics Functions for Frame Rate Perception, SMPTE Meetings and Conferences ( October 2017); SMPTE, 2017, ISBN: 978-1-61482-959-1. Available at https://doi.org/10.5594/M001801

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<span class="citation">Elizabeth DoVale and David Long; <cite>Assessing Psychophysics Functions for Frame Rate Perception</cite>, SMPTE Meetings and Conferences ( October 2017); SMPTE, 2017, ISBN: 978-1-61482-959-1. Available at <a href="https://doi.org/10.5594/M001801" target="_blank" rel="noopener">https://doi.org/10.5594/M001801</a></span>

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Elizabeth DoVale and David Long; <cite id="bib-10-5594-m001801">Assessing Psychophysics Functions for Frame Rate Perception</cite>, SMPTE Meetings and Conferences ( October 2017); SMPTE, 2017, ISBN: 978-1-61482-959-1
<span class="doi">10.5594/M001801</span>
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