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.
Background subtraction is a widely used technique for video object segmentation. Its main drawback is its constraint to video from a static camera. Several proposals have been made to extend background model generation to camera movement, while few approaches can cope with many degrees of freedom in camera motion. We present a method to generate background images for unconstrained camera motion, zoom,...
Current trends in smart homes suggest that several multimedia services will soon converge towards common standards and platforms. However this rapid evolution gives rise to several issues related to the management of a large number of multimedia streams in the home communication infrastructure. An issue of particular relevance is how a context acquisition system can be used to support the management...
A classical approach to video object segmentation is background subtraction. Background subtraction starts by estimating a model of the background image of a scene and then calculating the likeliness that a given pixel of the current camera image belongs to the background model. Typically this is done by subtracting the background image from a given frame, where the difference image is usually thresholded...
Local features have the ability to overcome the major drawback of traditional, holistic object detection approaches, because they are inherently invariant to geometric deformation and pose; in addition scale and rotation invariance can be easily achieved as well. However, the selection of discriminative feature locations and local descriptions is a complex task that has not been generally solved....
Despite strong interest in cloth simulation on the one hand and tracking of deformable objects on the other, little effort has been put into tracking cloth motion by modelling the fabric. Here, an analysis-by-synthesis approach to tracking textiles is proposed which, by fitting a simulated textile to a set of contours, is able to reconstruct the 3D-cloth configuration. Fitting is accomplished by optimising...
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.