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.
The feature points of skull location and mark is an important research aspect in computer-aided facial reconstruction and computer-aided photographic superimposition. Based on technique in the topology between feature points analyzing, an automatic localization and marking method for key points of skull is proposed. First, get the contour of skull based on image preprocess technique and calculate...
Based on correlative matrices set and random permutation, a new construction of rotation visual cryptography scheme (RVCS) has been presented, which can be used to encode four secret images into two shares. Experimental results demonstrate that four secrets can be recovered clearly by stacking two shares with different angles and the shapes of the reconstructed images do not have distortions.
To solve the problem of cheating in the reconstructing process of visual cryptography, a verifiable visual cryptography was proposed by adding a verifier to common visual cryptography scheme (VCS). This scheme can be used in any access structure and can check every share to prevent attackers from spoiling and grabbing the secret information.
A new method of realizing fingerprint authentication on Smartcard has been presented. Based on SOC, this method puts the pre-processing algorithm, which is the most time-wasting process, out of card. It not only decreases the complexity of realizing fingerprint authentication on Smartcard, but also ensures the security of fingerprint information due to the original fingerprint image has been transformed...
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.