Watermarking schemes evaluation Abstract鈥擠igital watermarking has been presented as a solution to copy protection of multimedia objects and dozens of schemes and algorithms have been proposed. Two main problems seriously darken the future of this technology though. Firstly, the large number of attacks and weaknesses which appear as fast as new algorithms are proposed, emphasizes the limits of this technology and in particu-lar the fact that it may not match users expectations. Secondly, the requirements, tools and methodologies to assess the current technologies are almost non-existent. The lack of benchmarking of current algorithms is bla-tant. This confuses rights holders as well as software and hardware manufacturers and prevents them from using the solution appropriate to their needs. Indeed basing long-lived protection schemes on badly tested watermarking technology does not make sense.
标签： Watermarking watermarking evaluation presented
上传时间： 2013-12-04
上传用户：thinode
Version Viewer Plug-in for Beyond Compare version 2.2.1, released 7-August-2007 by Scooter Software Abstract -------- Version Viewer is a Beyond Compare plug-in for comparing version information in file types such as .exe, .sys, .dll, .ocx, .386, .scr, .drv, .vxd and .bcp.
标签： released Version Plug-in Compare
上传时间： 2017-05-21
上传用户：caozhizhi
Abstract - A fl exible multiscale and directional representation for images is proposed. The scheme combines directional fi lter banks with the Laplacian pyramid to provides a sparse representation for two- dimensional piecewise smooth signals resembling images. The underlying expansion is a frame and can be designed to be a tight frame. Pyramidal directional fi lter banks provide an effective method to implement the digital curvelet transform. The regularity issue of the iterated fi lters in the directional fi lter bank is examined.
标签： representation directional multiscale Abstract
上传时间： 2013-12-15
上传用户：zxc23456789
Abstract—The contourlet transform is a new two-dimensional extension of the wavelet transform using multiscale and direc- tional fi lter banks. The contourlet expansion is composed of basis images oriented at various directions in multiple scales, with fl exible aspect ratios. Given this rich set of basis images, the contourlet transform effectively captures smooth contours that are the dominant feature in natural images.
标签： transform two-dimensional contourlet extension
上传时间： 2014-01-18
上传用户：水中浮云
Abstract—Stable direct and indirect decentralized adaptive radial basis neural network controllers are presented for a class of interconnected nonlinear systems. The feedback and adaptation mechanisms for each subsystem depend only upon local measurements to provide asymptotic tracking of a reference trajectory. Due to the functional approximation capabilities of radial basis neural networks, the dynamics for each subsystem are not required to be linear in a set of unknown coeffi cients as is typically required in decentralized adaptive schemes. In addition, each subsystem is able to adaptively compensate for disturbances and interconnections with unknown bounds.
标签： decentralized controllers Abstract adaptive
上传时间： 2017-08-17
上传用户：gdgzhym
学习Direct3D中的2D-Focus.On.2D.in.Direct3D.-.fly
标签： Direct3D D-Focus Direct fly
上传时间： 2013-08-04
上传用户：eeworm
游戏开发大全-game.programming.all.in.one
标签： programming game all one
上传时间： 2013-06-30
上传用户：eeworm
EDA Tools in FPGA用于开发FPGA的EDA工具:随着集成电路和计算机技术的发展，越来越多的公司不断的开发出更加好用的EDA工具给广大的
上传时间： 2013-04-24
上传用户：ywqaxiwang
·Applied Mathematics in Integrated Navigation Systems
标签： nbsp Mathematics Integrated Navigation
上传时间： 2013-07-17
上传用户：liu_yuankang
ink in c++.chm C++编程思想 经典书籍 非常方便，需要的请下载吧。
上传时间： 2013-06-12
上传用户：yanming8525826
