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.
The automatic video shot detection is receiving a great impact with the advances in the digital video technology and ever increasing accessibility of computing results. In this paper we describe a framework for extracting shot detection by using the threshold values of diverse statistical features for raw video frames. Two different types of sports videos viz. soccer and basketball are used for assessment...
In this paper, shot boundary detection (SBD) algorithm based on macroblock and DC image is presented. We get the macroblock type information and simultaneously extract DC images from MPEG compressed domain. The statistics of macroblock type information is applied to coarse detection, and DC images are applied to scrutiny detection. The results of experiments show that our algorithm is efficient, and...
Edge is one of the most fundamental features. Edge detection is an important method to extract the image's characteristics. Firstly gradient adjusted predictor was used to predict the image, and then aimed at the gained error image, a new adapted approach to selected threshold based on gradient mean-value histogram was proposed, and classified edge and non-edge by the gained threshold; to obtain single...
The growing usage of mobile devices has led to proliferation of many mobile applications. A growing trend in mobile applications is centered on mobile landmark recognition. It is a new mobile application that recognizes a captured landmark using the mobile device and retrieves related information. This paper will present a survey on mobile landmark recognition for information retrieval. A general...
Image mining deals with the extraction of implicit knowledge, image data relationship, or other patterns not explicitly stored in the images. This paper proposes an enhanced image classifier to extract patterns from images containing text using a combination of features. Image containing text can be divided into the following types: scene text image, caption text image and document image. A total...
Accurate classification of abandoned objects is crucial in video surveillance systems. In this paper, we experiment with different validation techniques (hold-out and 10-fold cross validation), with the aim of determining which feature set proves more useful for accurate object classification in a video surveillance context (scale invariant image transform (SIFT) keypoints vs. geometric primitive...
The extraction of playing shots is helpful for video analysis. In this paper, we propose an algorithm: first, the shots are segmented by detecting the shot boundaries (both abrupt cuts and gradual transitions), and wipes are discarded directly; then from the rest shots, playing shots are extracted by shot classification. Experimental results confirm the efficiency of our proposed algorithm.
There has been a growth in demand for surveillance equipment to monitor people in indoor as well as outdoor environments. Furthermore, using guards to watch surveillance screens all the time is highly inefficient and thus automation of human monitoring can be more accurate and produce cost savings. The problem is challenging if we choose to use a passive non-invasive sensor such as vision. The specific...
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.