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.
This paper proposes a simple but practical 2D ear detection algorithm based on arc-masking candidate extraction and AdaBoost polling verification. In the first half phase of the proposed ear detection algorithm, a few ear candidates are extracted by arc-masking edge search followed by multilayer mosaic and orthogonal projection histogram. Then, in the second half phase, the most likely ear candidate...
In this paper, we propose a new watermarking scheme which combines both the digital holography and the digital watermarking techniques. The watermark is transformed into a digital phase-shifting hologram based on the Mach-Zehnder interferometer architecture and then is embedded into the specific subbands in the wavelet transform of the host image. By inversely transforming the wavelet coefficients...
In vector quantization (VQ) techniques, the block difference measurement in the nearest neighboring search and the iteration process in codebook generation are time consuming. Since there could be many smoothing or strongly related regions in images, the pixels values in the partitioned image blocks could be identical or quite similar. In this paper, two accelerating methods for codebook training...
In this study, an efficient face detection method is proposed for low-resolution video. The cascaded face detector proposed by Viola can achieve real-time detection and a high detection rate. However, the motion blurr of the face images in the low-resolution video usually exists. The detection rate in low-resolution video is lower than that in static images because the training set in the Adaboost...
A semantic content based information retrieval system for a three-dimensional (3-D) database is proposed in this paper. Here the studied database is composed of 3-D building objects defined by virtual reality modeling language (VRML). First of all, the specific low-level features for building objects are defined and then searched and extracted from the content described in the VRML file. Then, a semantic...
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.