SMPTE Meetings and Conferences ( October 2015)
[ACTIVE]
Native Resolution Detection of Video Sequences
Metadata
- Publisher
- SMPTE — White Plains, NY, USA
- Doc Type
- Conference Paper
- Content Type
- Original Research
- Volume
- 2015, No. 10, pp. 1–20
- Abstract
- We present a method to detect the lowest resolution that a video sequence segment has undergone before being rendered and presented at some higher resolution. The method is based on extracting homogenous regions within a given video sequence, performing Discrete Fourier Transform on each one of the color components (Y/Cb/Cr) for each video frame, normalizing the magnitude of the spectrum such that the total AC energy is one and then taking its logarithm. Average log-magnitude spectra demonstrate certain patterns that are typical of re-sampling techniques that video frames are undergone during post-production. The method is demonstrated on a few video sequences, showing typical up-sampling of video content, as a result of inherent camera resolution limitations, special effects overlaying at lower than the natural video scene footage and chroma subsampling.
- Publication Date
- 2015-10-26
- DOI
10.5594/M001673- ISBN
- Print:
978-1-61482-956-0 - Link
- https://doi.org/10.5594/M001673
- Author(s)
- Ioannis KatsavounidisEncoding Technologies, Netflix, Los Gatos, CA 95032Anne AaronEncoding Technologies, Netflix, Los Gatos, CA 95032David RoncaEncoding Technologies, Netflix, Los Gatos, CA 95032
- Keyword(s)
- Image Resolution, Video Format, Fourier Analysis, Aliasing, Resampling, Interpolation, Chroma Subsampling
- Copyright
- © 2015 Society of Motion Picture and Television Engineers, Inc.
Bibliographic Reference(s)
- “Nyquist-Shannon sampling theorem,” link: http://en.wikipedia.org/wiki/Nyquist-Shannon sampling theorem. EXTERNAL
- J. W. Cooley and J. W. Tukey, “An algorithm for the machine calculation of complex fourier series,” Math. Comput., vol. 19, pp. 297–301, 1965. EXTERNAL
- R. G. Keys, “Cubic convolution interpolation for digital image processing,” IEEE Trans. on Acoustics, Speech, and Signal Processing, vol. ASSP-29, no. 6, pp. 1153–1160, 1981. EXTERNAL
- “Lanczos resampling,” link: http://en.wikipedia.org/wiki/Lanczos resampling. EXTERNAL
- M. Frigo and S. G. Johnson, “The design and implementation of FFTW3,” Proceedings of the IEEE, vol. 93, no. 2, pp. 216–231, 2005, special issue on “Program Generation, Optimization, and Platform Adaptation”. EXTERNAL
- D. P. Mitchell and A. N. Netravali, “Reconstruction filters in computer graphics,” Computer Graphics, vol. 22, no. 4, pp. 221–228, Aug. 1988. c©2015 Society of Motion Picture & Television Engineers R© (SMPTE R©) 16 EXTERNAL
- J. J. B. Fourier, Th`eore Analytique de la Chaleur. Paris: Chez Firmin Didot, p`ere et fils, 1822. EXTERNAL
- “Fourier transform,” link: http://en.wikipedia.org/wiki/Fourier transform. EXTERNAL
- “Fast Fourier transform,” link: http://en.wikipedia.org/wiki/Fast Fourier transform. EXTERNAL
- H. Nyquist, “Certain topics in telegraph transmission theory,” Trans. AIEE, vol. 47, pp. 617–644, Apr. 1928. EXTERNAL
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Ioannis Katsavounidis, Anne Aaron, and David Ronca; Native Resolution Detection of Video Sequences, SMPTE Meetings and Conferences ( October 2015); SMPTE, 2015, ISBN: 978-1-61482-956-0. Available at https://doi.org/10.5594/M001673
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Ioannis Katsavounidis, Anne Aaron, and David Ronca; Native Resolution Detection of Video Sequences, SMPTE Meetings and Conferences ( October 2015); SMPTE, 2015, ISBN: 978-1-61482-956-0. Available at https://doi.org/10.5594/M001673
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Ioannis Katsavounidis, Anne Aaron, and David Ronca; Native Resolution Detection of Video Sequences, SMPTE Meetings and Conferences ( October 2015); SMPTE, 2015, ISBN: 978-1-61482-956-0. Available at https://doi.org/10.5594/M001673
Snippet:
<span class="citation">Ioannis Katsavounidis, Anne Aaron, and David Ronca; <cite>Native Resolution Detection of Video Sequences</cite>, SMPTE Meetings and Conferences ( October 2015); SMPTE, 2015, ISBN: 978-1-61482-956-0. Available at <a href="https://doi.org/10.5594/M001673" target="_blank" rel="noopener">https://doi.org/10.5594/M001673</a></span>
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Ioannis Katsavounidis, Anne Aaron, and David Ronca; Native Resolution Detection of Video Sequences, SMPTE Meetings and Conferences ( October 2015); SMPTE, 2015, ISBN: 978-1-61482-956-0
doi: 10.5594/M001673
url: https://doi.org/10.5594/M001673
doi: 10.5594/M001673
url: https://doi.org/10.5594/M001673
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<li> Ioannis Katsavounidis, Anne Aaron, and David Ronca; <cite id="bib-10-5594-m001673">Native Resolution Detection of Video Sequences</cite>, SMPTE Meetings and Conferences ( October 2015); SMPTE, 2015, ISBN: 978-1-61482-956-0 <span class="doi">10.5594/M001673</span> </li>