Year: 2009
Type: dissertation
Abstract: The Internet provides us a means to exchange or share multimedia contents (such as image, video and 3D model). Such multimedia contents are easily manipulated by copy and distribution without any quality degradation. Techniques are needed to ensure that multimedia content is used for its intended purpose by legitimate users. To protect the digital right of the multimedia content shared among a group of users, digital fingerprinting is developed for tracking and identifying illegal users involved in unauthorized redistribution. Digital fingerprinting is a technology to embed unique user information (e.g., ID or finger-prints) into each user’s copy as a watermark and if an illegal copy appears, user information can be extracted to help trace or identify illegal users. It consists of fingerprint encoding and fin-gerprint embedding/detection. In detail, fingerprint encoding means to design a fingerprint code, which uniquely represents each user and provides an efficient algorithm to trace illegal users (col-luders) based on their colluded code. Fingerprint embedding means to insert fingerprints into an object in a way tailoring to the object characteristics for robustness and imperceptibility, which is also called fingerprinting an object. Fingerprint detection means to extract the embedded finger-
Author: 書会 侯
Language: English
Subfield: Computer Vision and Pattern Recognition
Field: Computer Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W569671095