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 describe a technique for object detection that uses a combination of global shape descriptors and local point descriptors. Our system is able to represent pose using a global shape descriptor, rather than the commonly used part based representation. This approach considerably reduces computational complexity and achieves a significant performance improvement on an extensive dataset: CUB-200-2011...
We investigate the effect of sensorimotor delay on the pursuit and interception control strategies in the context of robotics. A first-order lead-lag model is introduced to model interception as observed in nature. This model was studied via extensive simulations that incorporate both a sensorimotor delay and a compensatory feedforward controller, allowing examination of the effects of various sensorimotor...
With the emergence of rotorcraft unmanned aerial systems (UAS) in civilian applications, the capability of accurate visual hovering is required in near-ground, GPS-denied, flying operations. Optic flow is commonly used for vision-based guidance and control of UAS, enabling autonomous obstacle avoidance, speed regulation, odometry, etc. This paper presents an optic flow-based method that uses a bio-inspired...
This paper presents the development and flight testing of a novel and efficient view-based method for the navigation and control of rotorcraft unmanned aerial vehicles (UAVs) in unknown, GPS-denied, outdoor environments. At the core of our system is the Image Coordinates Extrapolation (ICE) algorithm which estimates the UAV 3D position and velocity in real-time by computing the pixel-wise difference...
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.