Conventional approaches to image de-fencing use multiple adjacent frames for segmentation of fences in the reference image and are limited to restoring images of static scenes only. In this paper, we propose a de-fencing algorithm for images of dynamic scenes using an occlusion-aware optical flow method. We divide the problem of image de-fencing into the tasks of automated fence segmentation fr...

One tool used for wildlife management is the deployment of radiocollars to gain knowledge of animal populations. Understanding the influence of individual factors (e.g., species, collar characteristics) and landscape characteristics (e.g., forested cover, shrubs, and fencing) on retention of expandable radiocollars for ungulates is important for obtaining empirical data on factors influencing e...

The success of disaster handling often depends on the efficient flow of information. The social media and networks receive a growing attention as potential source of valuable data in disaster scenarios. The social network based information flow is real-time, direct, two-directional and often geo-tagged. Unfortunately, besides these obvious advantages, social network data suffers from drawbacks:...

We present a method for the analysis of images of foil fencing. This is a challenging domain because of the speed of motion, which leads to significant motion blur. Our method detects the blade in images of a fencer, and is based on the Hough transform. In experiments under controlled conditions it is found to have a 94% success rate on two unseen sequences of 500 frames.

Soil degradation caused by overgrazing is a worldwide problem. The degradation of an overutilized area occurs mainly where animals prefer to spend extra time because of the attractants that are around gateways, water sources, along fences or farm buildings. High grazing pressure decreases plant density which results in changes of the botanical composition of a pasture. The effect that grazing h...

Grazing exclusion has been widely implemented in degraded grassland. However, the changes of plant communities and soil nutrients response to fencing are still controversial. Thus, effects free grazing, 17 36 years on biomass litter biomass, carbon (C), nitrogen (N) phosphorus (P) concentrations stocks plant, were investigated temperate steppe grasslands northern China. The results indicated th...

Ring-fencing is defined as protecting funds for use in a specific area. In the National Health Service in the UK, various methods to ring-fence cancer have been employed over the years; more recently the Cancer Drugs Fund in England has enabled cancer drugs that would not normally be considered cost-effective to be provided to patients. This has created variation in provision between England an...

We present a means of containing Wi-Fi coverage to physical boundaries that are meaningful to users. We call it geo-fencing. Our approach is based on directional antennas, and our motivation is to provide wireless access and privacy models that are a natural fit with user expectations. To evaluate geo-fencing, we use measurements from an indoor testbed of Wi-Fi nodes and APs with electronically...