Michael Marianovski
ABSTRACT
There is growing interest in capturing and projecting movies at higher frame rates than the traditional 24 frames per second. Yet there has been little scientific assessment of the impact of higher frame rates (HFR) on the perceived quality of cinema content. Here we investigated the effect of frame rate, and associated variables (shutter angle and camera motion) on viewers' ability to discriminate letters in S3D movie clips captured by a professional film crew. The footage was filmed and projected at varying combinations of frame rate, camera speed and shutter angle. Our results showed that, overall, legibility improved with increased frame rate and reduced camera velocity. However, contrary to expectations, there was little effect of shutter angle on legibility. We also show that specific combinations of camera parameters can lead to dramatic reductions in legibility for localized regions in a scene.
- Banks, M. S., Read, J. C. A., Allison, R. S., & Watt, S. J. 2012. Stereoscopy and the Human Visual System. SMPTE Motion Imaging Journal, 121, 24--43.Google Scholar
Cross Ref
- Barlow, H.B. 1958. Temporal and spatial summation in human vision at different background intensities. The Journal of Physiology 141, 337--350.Google ScholarCross Ref
- Bex, P.J., Edgar, G.K. and Smith, A.T. 1995. Sharpening of drifting, blurred images. Vision Research 35, 2539--2546.Google ScholarCross Ref
- Burr, D.C. and Morgan, M.J. 1997. Motion deblurring in human vision. Proceedings of the Royal Society B: Biological Sciences 264, 431--436.Google ScholarCross Ref
- Holman, T. 2010. Sound for film and television. Taylor & Francis.Google Scholar
- Kaufman, D. 2012. High Frame Rate Cinema. Creative Communities of the World. https://library.creativecow.net/kaufman_debra/High-Frame-Rate-Cinema/1Google Scholar
- Swets, J.A. 1964. Signal detection and recognition by human observers: contemporary readings. Wiley.Google Scholar
- Watson, A.B. 1986. Temporal sensitivity. Handbook of perception and human performance 1, 6--1.Google Scholar
- Watson, A.B. 2013. High frame rates and human vision: A view through the window of visibility. SMPTE Motion Imaging Journal 122, 18--32.Google ScholarCross Ref
Index Terms
- Evaluation of the impact of high frame rates on legibility in S3D film
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