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Title: Tampered videos-detection and quality assessment
Researcher: Manish Kumar Thakur
Guide(s): Vikash Saxena and J P Gupta
Keywords: Detection
Quality Assessment
Upload Date: 3-Jul-2015
University: Jaypee Institute of Information Technology
Completed Date: 17/06/2014
Abstract: In the socio-economic knowledge and scientific development, the images and videos available at various video sharing and social networking websites are playing a significant role and signify their unprecedented role in today’s context, besides the videos captured through CCTV cameras specifically meant for surveillance. On the other hand, advancements in digital video technologies made it easy to manipulate or tamper the videos; hence the authenticity of these videos or videos seen in mass media, such as television, cannot be always taken for granted. In recent years, tampering with video evidences is more prevalent than ever, where facts were misrepresented by the fake or doctored videos. In this thesis we aim to verify the authenticity of a video as well as detection of the location of temporal tampering of frame drop, frame copy, and frame swapping. The proposed schemes neither require any additional bit to embed in videos nor use any coding artifacts. The developed schemes use various thresholds defined with proposed features and achieve good accuracies. Apart from detection of tampering, this thesis also focuses to assess the quality degradation in spatio-temporally and temporally tampered or distorted videos. Based on series of subjective experiments, we have obtained the Mean Opinion Score, MOS and developed a full reference dropped frames quality metric. The assessed quality degradation shows better correlation with the obtained MOS.
Appears in Departments:Department of Computer Science Engineering and Information Technology

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01_title.pdfAttached File155.18 kBAdobe PDFView/Open
02_table of contents.pdf99.7 kBAdobe PDFView/Open
03_declaration.pdf11.87 kBAdobe PDFView/Open
04_certificate.pdf13.42 kBAdobe PDFView/Open
05_acknowledgement.pdf15.36 kBAdobe PDFView/Open
06_abstract.pdf14.37 kBAdobe PDFView/Open
07_list of acronyms & abbreviations.pdf13.45 kBAdobe PDFView/Open
08_list of symbols, figures and tables.pdf122.82 kBAdobe PDFView/Open
09_chapter1.pdf2.32 MBAdobe PDFView/Open
10_chapter2.pdf197.86 kBAdobe PDFView/Open
11_chapter3.pdf3.5 MBAdobe PDFView/Open
12_chapter4.pdf3.45 MBAdobe PDFView/Open
13_chapter5.pdf1.52 MBAdobe PDFView/Open
14_chapter6.pdf451.05 kBAdobe PDFView/Open
15_chapter7.pdf703.26 kBAdobe PDFView/Open
16_chapter8.pdf1.2 MBAdobe PDFView/Open
17_references.pdf57.1 kBAdobe PDFView/Open
18_list of publications.pdf16.71 kBAdobe PDFView/Open
19_synopsis.pdf179 kBAdobe PDFView/Open
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