Example-based approaches have been very successful for human motion analysis but their accuracy strongly depends on the similarity of the viewpoint in testing and training images. In practice, roof-top cameras are widely used for video surveillance and are usually placed at a significant angle from the floor, which is different from typical training viewpoints. We present a methodology for view...

There have been several major advances in autonomous navigation for unmanned ground vehicles in controlled urban environments in recent years. However, off-road environments still pose several perception and classification challenges. This paper addresses two of decisions must be made about obstacles in the vehicle’s path. The most common obstacle is vegetation, but some vegetation may be trave...

0167-8655/$ see front matter 2012 Elsevier B.V. A http://dx.doi.org/10.1016/j.patrec.2012.03.022 q This work is supported by EU-FP7 FIRESENSE pro ⇑ Corresponding author. Tel.: +31 205924209. E-mail address: [email protected] (J. Han). We present a newmethod to register a pair of images captured in different image modalities. Unlike most of existing systems that register images by aligning single typ...

Clinicians must inevitably make therapeutic decisions under nonideal conditions. They practice in circumstances that involve incomplete evidence. They deliver care in health care systems that are complex and poorly coordinated. Each of the patients that they take care of is unique while research offers evidence regarding relatively homogeneous populations of patients. Under these circumstances,...

We propose a solution toward the problem of autonomous flight and exploration in man-made indoor environments with a micro aerial vehicle (MAV), using a frontal camera, a downward-facing sonar, and an IMU. We present a general method to detect and steer an MAV toward distant features that we call vistas while building a map of the environment to detect unexplored regions. Our method enables aut...

This special issue of Concurrency and Computation: Practice and Experience contains selected high-quality papers from the second International Workshop on Workflow Management and Applications in Grid Environments (WaGe2007), which was held on 17 August 2007 in Urumqi China [1]. The WaGe workshop series was aimed at providing an international forum for the presentation and discussion of research...