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Modeling temporal effects in re-captured video
Schaber, Philipp
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Dong, Sally
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Guthier, Benjamin
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Kopf, Stephan
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Effelsberg, Wolfgang
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DOI:
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https://doi.org/10.1145/2733373.2806405
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URL:
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http://dl.acm.org/citation.cfm?doid=2733373.280640...
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Document Type:
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Conference or workshop publication
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Year of publication:
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2015
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Book title:
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Proceedings of the 2015 ACM Multimedia Conference & co-located workshops : October 26-30, 2015, Brisbane, Australia : MM'15 : co-located workshops: ASM'15, AVEC'15, HCMC'15, CrowdMM'15, ImmersiveME'15, MMCommons'15, & SLAM'15
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Page range:
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1279-1282
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Conference title:
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MM '15, 23rd ACM international conference on Multimedia
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Location of the conference venue:
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Brisbane, Australia
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Date of the conference:
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26-30 October 2015
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Publisher:
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Zhou, Xiaofang
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Place of publication:
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New York, NY
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Publishing house:
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ACM
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ISBN:
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978-1-4503-3459-4
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Publication language:
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English
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Institution:
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School of Business Informatics and Mathematics > Praktische Informatik IV (Effelsberg -2017)
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Subject:
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004 Computer science, internet
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Keywords (English):
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recapturing , camcorder copy , frame blending , temporal distortion
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Abstract:
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The re-capturing of video content poses significant challenges to algorithms in the fields of video forensics, watermarking, and near-duplicate detection. Using a camera to record a video from a display introduces a variety of artifacts, such as geometric distortions, luminance transformations, and temporal aliasing. A deep understanding of the causes and effects of such phenomena is required for their simulation, and for making the affected algorithms more robust. In this paper, we provide a detailed model of the temporal effects in re-captured video. Such effects typically result in the re-captured frames being a blend of the original video's source frames, where the specific blend ratios are difficult to predict. Our proposed parametric model captures the temporal artifacts introduced by interactions between the video renderer, display device, and camera. The validity of our model is demonstrated through experiments with real re-captured videos containing specially marked frames.
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 | Dieser Eintrag ist Teil der Universitätsbibliographie. |
 Search Authors in
BASE:
Schaber, Philipp
;
Dong, Sally
;
Guthier, Benjamin
;
Kopf, Stephan
;
Effelsberg, Wolfgang
Google Scholar:
Schaber, Philipp
;
Dong, Sally
;
Guthier, Benjamin
;
Kopf, Stephan
;
Effelsberg, Wolfgang
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