Visual navigation of mobile robots has become a core capability that enablesmany interesting applications from planetary exploration to self-driving cars. While systems built on passive cameras have been shown to be robust in well-lit scenes, they cannot handle the range of conditions associated with a full diurnal cycle. Lidar, which is fairly invariant to ambient lighting conditions, offers o...

Localization is an essential capability for mobile robots, enabling them to build a comprehensive representation of their environment and interact with the effectively toward goal. A rapidly growing field research in this area visual place recognition (VPR), which ability recognize previously seen places world based solely on images.

We present here significant difference in the evocation capability between sensory memories (visual, taste, and olfactory) throughout certain categories of the population. As object for this memory recall we selected French fries that are simple and generally known. From daily life we may intuitively feel that there is much better recall of the visual and auditory memory compared to the taste a...

Human beings rely on visual information to learn about the environment around them, construct representations of the world, and control their actions. By and large, humans are remarkably accurate when it comes to complex motor actions such as catching a baseball or hitting a target. In fact, the perceptual skills underlying such actions are not easily understood as they are far superior to any ...

Recent research has demonstrated the great capability of deep belief networks for solving a variety of visual recognition tasks. However, primary focus has been on modelling higher level visual features and later stages of visual processing found in the brain. Lower level processes such as those found in the retina have gone ignored. In this paper, we address this issue and demonstrate how the ...

In an ocularly healthy population, decimal visual acuities range from 1 to 3. We wondered how this spread can be understood. Using a maximum likelihood adaptive procedure, "visual acuity" was measured in a healthy population with four stimulus sets: unblurred Landolt Cs and Cs blurred with a Gaussian of width sigma = 2.12', 4.24' and 8.48'. A simple model based on scale invariance of the visual...

So far, data representation has been based on visuals. The huge size of data verges on overuse of the visual capability. Thus, there is a need to reduce the almost exclusive use of visual techniques to represent data in order to increase our perception bandwidth. In this research, we aim to solve this problem by integrating the audio component. More precisely, we are interested in representing ...

We propose a visual language, Hyperflow, for system programming as well as for end user shell programming. Hyperflow is designed for a multimedia pen computer system for children. It is a dataflow-based graphical language similar to Show and Tell. In order to demonstrate the capability of Hyperflow, we solve the programming problem of implementing a help command for children to telephone their ...

The research on the human reading technique and text perception strategies needs objective evaluation methods. Our proposal consists in the use of scan-path recording and eye track processing results as estimators of reading skills and capability of error compensation. Visual tasks, being principal investigation tool, were completed by arrangement of texts for presentation, eye trajectory acqui...

Night vision goggles have become an essential component of military aviation. They provide superior visual capability over unaided night vision, but there are several inherent limitations associated with human factors and systems limitations. This study used a questionnaire survey of Army helicopter aircrew to investigate the incidence of human factors problems which continued after NVG use, wi...