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.
In this paper we propose a new method for detecting object class instances based on Hough transform. Hough forests which are adapted to perform Hough transform have been efficiently used for single-class object detection. In this work we extend them using HaarHOG descriptor which is a combination of Haar wavelet and HOG descriptor. As a result, we increase the number of feature channels in Hough forests...
Underwater target recognition, which possesses a crucial theoretic and application value, is a very important topic in the world. The basic principles of wavelet packets transform (WPT) and support vector machine (SVM) are briefly introduced at first. Then the signals of ship radiated are pre-processed and filtered by WPT and the wavelet packets energy spectrum feature parameters are extracted from...
In this paper, we propose an adaptive object tracking algorithm in crowded scenes. The amplitudes of of undecimated wavelet packet tree coefficients for some selected pixels at the object border are used to create a feature vector (FV) corresponding to that pixel. The algorithm uses these FVs to track the pixels of small square blocks located at the vicinity of the object boundary. The search window...
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.