Title :
Reversible video stream anonymization for video surveillance systems based on pixels relocation and watermarking
Author :
Cichowski, Janusz ; Czyzewski, Andrzej
Author_Institution :
Multimedia Syst. Dept., Gdansk Univ. of Technol., Gdansk, Poland
Abstract :
A method of reversible video image regions of interest anonymization for applications in video surveillance systems is described. A short introduction to the anonymization procedures is presented together with the explanation of its relation to visual surveillance. A short review of state of the art of sensitive data protection in media is included. An approach to reversible Region of Interest (ROI) hiding in video is presented, utilizing a new relocation algorithm for hashing and a watermarking technique for extra data embedding. Implemented application is described, and results obtained using it are reported. Future work and possible improvements to introduced algorithms are discussed.
Keywords :
computer network security; cryptography; file organisation; video streaming; video surveillance; video watermarking; data embedding; data protection; hashing technique; pixels relocation; region of interest hiding; reversible video image regions; reversible video stream anonymization; video surveillance systems; visual surveillance; watermarking technique; Data mining; Decoding; Image coding; Robustness; Streaming media; Transform coding; Watermarking;
Conference_Titel :
Computer Vision Workshops (ICCV Workshops), 2011 IEEE International Conference on
Conference_Location :
Barcelona
Print_ISBN :
978-1-4673-0062-9
DOI :
10.1109/ICCVW.2011.6130490
