Search results for "copy protection"
showing 2 items of 2 documents
Hollywood ups ante in copy protection fight
2002
The little analog-to-digital converters found everywhere in computing and consumer electronics might, if the entertainment industry gets its way, become the new front line against illicit copying of movies and music. Not surprisingly, the industry's proposal to hardwire copy protection into all these converters has provoked a storm of indignation among consumer electronics producers and civil liberties groups. Concerned that movies might be redigitized, with no copy protection. The Motion Picture Association of America (MPAA) wants analog-to-digital converters to recognize a copyrighted video or audio signal and prevent it from being copied. However the MPAA's plan will be hard for others t…
A robust blind 3-D mesh watermarking based on wavelet transform for copyright protection
2019
Nowadays, three-dimensional meshes have been extensively used in several applications such as, industrial, medical, computer-aided design (CAD) and entertainment due to the processing capability improvement of computers and the development of the network infrastructure. Unfortunately, like digital images and videos, 3-D meshes can be easily modified, duplicated and redistributed by unauthorized users. Digital watermarking came up while trying to solve this problem. In this paper, we propose a blind robust watermarking scheme for three-dimensional semiregular meshes for Copyright protection. The watermark is embedded by modifying the norm of the wavelet coefficient vectors associated with th…