Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 70 for “"watermarking"”.
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Multimedia Watermarking
The proposed multimedia watermarking techniques can be applied to copyright protection, content authentication, and side information delivery in commerce, journalism, security, and law.
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Robust and Blind 3D Watermarking
3D watermarking is a technique to hide some information into the 3D graphical model in such a way that the watermarked object is visually indistinguishable from the original one. A robust and blind 3D watermarking method should be able to detect the embedded message after a certain level of …
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RST invariant digital image watermarking
Digital image watermarking has been proposed as a method to ensure the copyright protection and credibility of images by means of embedding a known piece of digital data into host images. To be useful, a good watermarking scheme should be robust against all known attacks to a certain degree based …
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Contextual biometric watermarking of fingerprint images
This research presents contextual digital watermarking techniques using face and demographic text data as multiple watermarks for protecting the evidentiary integrity of fingerprint image. The proposed techniques embed the watermarks into selected regions of fingerprint image in MDCT and DWT …
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Image watermarking, steganography, and morphological processing
… robot vision have recently become popular. Image watermarking, steganogrphic system, morphological processing and shortest path planning are important subjects among them. In this dissertation, the fundamental techniques are reviewed first followed by the presentation of novel algorithms and …
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Information theoretic analysis of watermarking systems
Watermarking models a copyright protection mechanism where an original data sequence is modified before distribution to the public in order to embed some extra information. The embedding should be transparent (i.e., the modified data should be similar to the original data) and robust (i.e., the …
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Machine Learning Model Watermarking through DRAM PUFs
… authorization and deploy it for their advantage. Watermarking serves as a tool that, in such scenarios, allows the legitimate owner to claim the authenticity of the stolen model. Researchers have developed various watermarking schemes for neural networks, typically by modifying the training code. …
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A robust region-adaptive digital image watermarking system
Digital image watermarking techniques have drawn the attention of researchers and practitioners as a means of protecting copyright in digital images. The technique involves a subset of information-hiding technologies, which work by embedding information into a host image without perceptually …
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Low-complexity methods for image and video watermarking
… by the ease to copy and distribute the content. Watermarking has become the technology of choice for discouraging people from creating illegal copies of digital content. Watermarking is the practice of imperceptibly altering the media content by embedding a message, which can be used to identify …
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Adaptive watermarking algorithms for MP3 compressed audio signals
… and various malicious attacks. Digital watermarking is a technology that allows users to embed some imperceptible data into digital contents such as image, movie and audio data. Once a watermark is embedded into the original MP3 signal, it can be used to identify the copyright holder in …
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Digital Watermarking Based Image and Video Quality Evaluation
… than the Full-Reference metrics. Digital watermarking based quality evaluation emerges as a potential Reduced- or No-Reference quality metric, which estimates signal quality by assessing the degradation of the embedded watermark. Since the watermark contains a small amount of information …
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New Digital Audio Watermarking Algorithms for Copyright Protection
… investigates the development of digital audio watermarking in addressing issues such as copyright protection. Over the past two decades, many digital watermarking algorithms have been developed, each with its own advantages and disadvantages. The main aim of this thesis was to develop a new …
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Concepts and techniques in software watermarking and obfuscation
… industry and a hot research topic. Software watermarking and obfuscation are techniques to protect software from unauthorized access, modification, and tampering. While software watermarking tries to insert a secret message called software watermark into the software program as evidence of …
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Security of Watermarking Schemes Against Sensitivity Analysis Attacks
… the thesis, we apply our analysis to image watermarking, for which ""good"" statistical models are available, and hence the practical value of our work can be illustrated."
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ROBUST WATERMARKING TECHNIQUES FOR SCALABLE CODED IMAGE AND VIDEO
… attack. In this thesis, research on robust watermarking techniques for scalable coded image and video, are proposed and the improvements in robustness against various content adaptation attacks, such as, JPEG 2000 for image and Motion JPEG 2000, MC-EZBC and H.264/SVC for video, are reported. …
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FPGA Prototyping of a Watermarking Algorithm for MPEG-4
… proposed to address these issues; one is digital watermarking which is appropriate for image and video copyright protection. Videos distributed via the Internet must be processed by compression for low bit rate, due to bandwidth limitations. The most widely adapted video compression standard is …
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Digital audio watermarking for broadcast monitoring and content identification
… namely digital fingerprinting and digital watermarking. One area of Copyright that is consistently overlooked in DRM developments is 'Public Performance'. The research described in this thesis analysed the administration of public performance rights within the music industry in general, …
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Design, analysis, and implementation of effective network flow watermarking schemes
… an active form for traffic analysis, called flow watermarking. Flow watermarking works by first perturbing network flows and then observing network flows, looking for the specific perturbation patterns in order to link flows. This reduces the computational overhead to O(n) (from O(mn) for …
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Wake guard: Protecting smart speakers’ wake words with audio watermarking
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-04-12 without embargo terms
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