Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/14541
Title: Robust and scalable video authentication: Issues and solutions
Authors: HE DAJUN
Keywords: feature, watermarking, authentication, Error Correction Coding (ECC), cryptographic hash, digital signature
Issue Date: 25-Feb-2005
Source: HE DAJUN (2005-02-25). Robust and scalable video authentication: Issues and solutions. ScholarBank@NUS Repository.
Abstract: In this thesis, after investigating issues in video authentication, we have proposed two secure and robust solutions, which incorporate technologies like digital signature, watermarking, Error Correction Coding (ECC) and cryptographic hash, for various applications.The object-based video authentication system aims at MPEG4-based applications. It is robust to MPEG compression and object-based video processing (object segmentation, rotation, scaling and translation) while being capable of detecting object-based attacks (object modification, object or background replacement) by using features of both object and background to generate authentication information. The scalable video authentication system aims at video streaming. It can detect malicious attacks such as content modification and injection of commercials or offensive materials into video stream while being robust to video transcoding including format conversion, frame dropping and re-quantization.In addition, two important components in video authentication system, feature selection and watermarking capacity, have also been theoretically analyzed.
URI: http://scholarbank.nus.edu.sg/handle/10635/14541
Appears in Collections:Ph.D Theses (Open)

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