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.
Digital audio watermarking is considered as an efficient way to copyright protection. A robust algorithm was proposed based on chaos theory and quantization in comlex cepstrum domain. Parameter selection is a key and unmanageable problem. In the proposed method, embedded positions and parameters (including threshold value and step length) were given. And it is helpful for improving robustness and...
Digital watermark technology is an efficient way to copyright protection. First, DCT coefficients characteristics were analyzed. Then, a new watermark technique quantization was proposed. According to watermark information, DC coefficients of each 8times8 block were modulated in DCT matrix. And an adaptive method was given to obtain quantization distance. The experiments show it does well in transparency...
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.