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.
Image segmentation based on 2-D (two dimensional) histogram is an effective method because the structure information is taken into account in image. However, it always is on the assumption that partial region of 2-D histogram equals to zero, while utilizing Shannon entropy as optimization function. As a result, the efficiency of image segmentation is degraded seriously. In this paper, we proposed...
Image segmentation is the base of image 3D reconstruction. It is a critical step in image processing. Threshold segmentation is a simple and important method in grayscale image segmentation. Maximum entropy method is a common threshold segmentation method. This method only utilizes gray information. In order to adequately utilize spatial information of greyscale image, an improved 2D entropy segmentation...
To speed up the segmentation procedure and improve the segmentation quality of SAR image, the paper suggests a PSOGE algorithm, which is based on particle swarm optimization and grey entropy. In the algorithm, after a filtered image and a gradient image are deduced from the origin SAR image respectively, their grey-level co-occurrence matrix is constructed. On the basis of the matrix, a grey entropy...
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.