The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Traditional watermark embedding schemes inevitably modify the data in a host audio signal and lead to the degradation of the host signal. In this paper, a novel audio zero-watermarking algorithm based on discrete wavelet transform(DWT), discrete cosine transform(DCT), and singular value decomposition(SVD) is presented. The watermark is registered by performing SVD on the coefficients generated through...
Zero-watermark technique, embedding watermark without modifying carriers, has been broadly applied for copyright protection of images. However, there is little research on audio zero-watermark. This paper proposes an audio zero-watermark scheme based on energy relationship between adjacent audio sections. Taking use of discrete wavelet transformation (DWT), it gets power approximations, or energies,...
As stereo video become more and more popular the copyright protection for stereo video become more and more important. For stereo video, besides the normal video attack, it is easy to transfer it to a 2D video to pirate the copyright, while current stereo watermark scheme ignore this requirement which only can extract the watermark if both views are exist. A new stereo video watermarking method is...
In order to overcome the defects of conventional method which only gives the fixed graphics in black color, taken the iterated satellite graphics for example, the E-Learning environment is developed which can be used in learning of computer graphics in this paper. In this new learning environment, people can repeat drawing the colorful iterated satellite graphics which may arouse their interests and...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.