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.
Face detection is an important first step towards solving plethora of other computer vision problems. A fast robust face detection algorithm under a skin color model with geometry constraints is proposed in this paper. An ellipse color model in the YCbCr color space is first used to detect the skin regions. A light compensation algorithm is utilized to the original image, followed by a box model to...
This paper introduces the basic principle of non-negativity and support constraints recursive inverse filtering (NAS-RIF) algorithm and the shortcoming of it. We propose an improved scheme. Firstly we use the lifting wavelet de-noising technique to smoothen the blurred image, and then in the each iteration of NAS-RIF algorithm process adopt the image segmentation to find out the precise support constraints...
In an embedded system, the hardware resources are limited. In order to obtain such traffic information as traffic volume and vehicle speed in an embedded system, a series of efficient video processing algorithms and optimization techniques are proposed. The key algorithm to detect vehicles is the background subtraction method, in which the approximated median filter is applied to obtain the simulated...
The paper presents a new image segmentation method based on fuzzy entropy function and grey relational analysis. In allusion to the sensitivity towards the noise of the traditional fuzzy entropy method, the grey relational degree is introduced to exactly reflect the degree of the pixels belonging to the object or the background. In the proposed method, the gray values of the current pixel and its...
In allusion to the sensitivity towards the noise of the traditional fuzzy entropy method, an improved image segmentation method based on fuzzy entropy and grey relational analysis is proposed in the paper. In this modification, the grey relational degree is introduced to express the degree of the pixels belonging to the object or background accurately, we select the current pixel and its neighborhood...
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.