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 computer vision, video stitching is a very challenging problem. In this paper, we proposed an efficient and effective wide-view video stitching method based on fast structure deformation that is capable of simultaneously achieving quality stitching and computational efficiency. For a group of synchronized frames, firstly, an effective double-seam selection scheme is designed to search two distinct...
This paper presents a novel embedded real-time fisheye image distortion correction algorithm with application in IP network camera. A fast and simple distortion correction method is introduced based on Midpoint Circle Algorithm (MCA) which aims to determine the pixel positions along a circle circumference based on incremental calculation of decision parameters. Although only the vertical is rectilinearised,...
The defocus blur in catadioptric omni-directional imaging is caused by large apertures and mirror curvatures. This problem becomes more obviously when introducing high resolution sensors. In order to overcome this drawback, this work proposes a simple modification to a conventional catadioptric system that allows for the recovery of an all-focus omni-directional image. The modification is designed...
This paper presents a new real-time fish-eye distortion correction algorithm based on Midpoint Circle Algorithm with application in IP network camera. In particular, our method is no need of a planar checkerboard, iterative fitting of model parameters, complex computation, or traditional lookup table. Hence, our algorithm is very suitable for embedded camera platform without any extra hardware resources.
A new generation of optical devices that generate images covering 360 degree field of view, namely catadioptric cameras, is slowly emerging. Because of the concentric annular distortion, the omnidirectional images need to be transformed into panoramic images. In omnidirectional visual surveillance systems, it is a challenge to realize panoramic unrolling in real time, especially for high-resolution...
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.