In this paper we analyze different business models for the distribution of content and services over IP networks and outline their distinct characteristics and value propositions. Four business models are distinguished: Centralized Internet Hosting, Direct Homing, Content Delivery Networks and P2P Distribution. In contrast to prior research, we focus on the ability of present technology to supp...

In this paper, we present a method that uses panoramic images to perform long-range navigation as a succession of short-range homing steps along a route specified by appearances of the environment of the robot along the route. Our method is different from others in that it does not extract any features from the images and only performs simple image processing operations. The method does only ma...

The literature often suggests that proprioceptive and especially vestibular cues are required for navigation and spatial orientation tasks involving rotations of the observer. To test this notion, we conducted a set of experiments in virtual environments in which only visual cues were provided. Participants had to execute turns, reproduce distances, or perform triangle completion tasks. Most ex...

1Department of Molecular Cardiology, Joseph J. Jacobs Center for Thrombosis and Vascular Biology, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH; 2First Affiliated Hospital, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi, China; 3Department of Molecular and Cellular Biochemistry, University of Kentucky College of Medicine, Lexington, KY; and 4Taussig Cancer...

While techniques exist for simulating group behaviors, these methods usually only provide simplistic navigation and planning capabilities. In this work, we explore the benefits of integrating roadmap-based path planning methods with flocking techniques. We show how group behaviors such as exploring can be facilitated by using dynamic roadmaps (e.g., modifying edge weights) as an implicit means ...

A wide range of technologies has been developed to enhance assessment, but adoption has been inconsistent. This is despite assessment being critical to student learning and certification. To understand why this is the case and how it can be addressed, we need to explore the perspectives of academics responsible for designing and implementing technology-supported assessment strategies. This pape...

Parallel robots represent way to considerably improve accuracy and speed of industrial machine tools and their centres. This paper deals with the preparatory operations: homing and calibration, which precede the start-up of the robot work, i.e. real control process. Their procedures are discussed with respect to planar parallel robots and their control. In this paper, as a suitable control stra...

MinWarping, a holistic local visual homing method, compares image columns pixel-wise. The distance measures used in this comparison strongly affect the tolerance of MinWarping to changes in illumination. Based on six indoor databases, each in a day and a night version, we compare four difference distances measures with respect to their navigation performance under changes in illumination. An av...

Appearance-based localization compares the current image taken from a robot’s camera to a set of pre-recorded images in order to estimate the current location of the robot. Such techniques often maintain a graph of images, modeling the dynamics of the image sequence. This graph is used to navigate in the space of images. In this paper we bring a set of techniques together, including Partially-O...

The imaging system involves an image produced from a reeection by a spherical mirror to produce a 360 projection of the environment. This paper extends previous work on an image-based navigation system in which the 360 view is compressed into a circular waveform. A navigation task is speciied as a sequence of homing tasks on target locations. This is accomplished by matching landmarks from the ...