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.
Features of sea ice is often not obvious, and to delineate feature areas manually would limit the effect of MCC method for tracking sea ice drift. This study focuses on automatic selection of feature regions. First, an object-oriented segmentation method, which is based on the level iterative merging algorithm, is used for the sea ice areas. Then the corner points are obtained as the candidate feature...
In order to achieve accurate attitude measurement and smooth navigation controlling of unmanned surface vehicle (USV), a visual horizon tracking method based on Kalman filter has been proposed. Firstly, the approximate parameters of the visual horizon are estimated according to the predictive camera attitude, and the candidate image pixels are obtained in a small region of interest around the predicted...
Synthetic Aperture Radar (SAR) works by collecting the polarized electromagnetic waves returns from many radar pulses and processing them into a single radar image, which can work all-day and all-weather, and play a significant role in the detection of the oil slick. There' re speckle noise and the inconsistencies of overall gray level in SAR image, which brings a lot of interference in SAR images'...
The automatic and accurate segmentation of 3-D dental model digitized through intra or extra oral measurement methods is an important step in computer aided orthodontic system. This paper presents a robust segmentation method based on the bio-information of individual's teeth with little manual interaction. The discrete curvature of the dental model is first computed; using the computed discrete curvature...
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.