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.
We propose a novel framework for fast and robust video anomaly detection and localization in complicated crowd scenes. Images of each video are split into cells for extracting local motion features represented by optical flow. In the train videos, most background cells are subtracted by ViBe model. Feature vectors are extracted from each cell by integrating the value of optical flow in 8 different...
Based on the Lucas-Kanade optical flow method, a dynamically selecting model is proposed in this paper to track a moving object. This model is composed of an object model, a consistency constraint model, and a random sampling model. Based on the current image frame, the object model is used to calculate the relevant feature points for the next frame. The random sampling model is used to resample the...
Global efforts have been made in the past two decades to efficiently manipulate and assemble tiny entities at micro-scale or even nano-scale. In this paper, we discuss our team's development of adding an interactive controller to the emerging optically-induced dielectrophoresis (ODEP) platform which could be used to rapidly and parallelly manipulate micro and nano particles in fluidic medium. We have...
Many well studied works for accurate 3-D shape measurement which based on structured light technique have been presented in last decades. Among them, one common way is utilizing the binocular stereovision like model to get 3-D information. In this model, projector is always treated like a camera, thus making the projector-camera based system unified with a well-established traditional binocular stereovision...
Mandible reconstruction surgery is an extremely complex and high-risk surgical surgery. The aim of the project is to import the robotics technology into mandible reconstruction surgery, which can reduce the workload for doctors, decrease the difficulty of operation and improve the accuracy and quality of surgery. The development of Mandible Reconstruction Surgery Robotic System (MRSRS) provides a...
In this paper, we propose a new approach to detect hand-waving motion in crowds. Different from previous approaches which are often based on segmentation and motion detection, our method can be seen as a complexity reduction process from the problem of 3D motion detection to 2D object detection. Through arranging the same row of per video frame along the time sequence, we obtain 2D images composed...
This paper presents a new approach to tracking objects using motion similarity measure for pairs of objects, with an emphasis on collaborative tracking. Assuming the distribution of motion in a scene can be decomposed into multiple Gaussian distributions, the motion of each object can be computed and matched. An object sharing similar motion characteristics with the tracked object can be used as a...
This paper presents a prototype design and system analysis of a novel biomimetic eyeball-like robot (BEBOT) with mechanism implementing the process of accommodation. The mechanism proposed is inspired by the evidence of anatomy results of human eyeball, which has the ability to percept visual information of target object from far to near distance clearly. BEBOT implements this function by bio-inspired...
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.