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In biology, the detection of visual motion is typically modeled via a set of elementary motion detectors (EMDs) forming a spatially distributed network. This paper summarizes recent results on estimating the dynamics of such an EMD construct from a biologically measured combination of their output signals. In particular, three interconnected problems pertaining to the field of system identification...
Steganography is a process that involves hiding a message in an appropriate carrier for example an image or an audio file. Many algorithms have been proposed for this purpose in spatial & frequency domain. But in almost all the algorithms it has been noticed that as one embeds the secret data in the image certain characteristics or statistics of the image get disturbed. To deal with this problem...
CFD simulation tools typically are expert systems and demand for specific expertise, moreover, commonly provided visualizations of the simulation results are hard to analyze and interpret, especially to people not closely related to the specific area of expertise. As a recent example, the need for such simulations, as well as tools for comprehensive visualizations and analysis of the generated results...
For interpreting the emerging process of visually induced motion sickness (VIMS), we propose a multi-timescale autonomic regulation model that consists of trigger and accumulation effects with different timescales. As validation experiments, fifteen participants viewed a 2-min-long first-person-view video section five times (total 10-min) continuously. Measured biosignals were the RR interval, respiration,...
Virtual reality (VR) has become a popular approach to study human behavior in fire. The present position paper analyses Strengths, Weaknesses, Opportunities, and Threats (SWOT) of VR as a research tool for human behavior in fire. Virtual environments provide a maximum of experimental control, are easy to replicate, have relatively high ecological validity, and allow safe study of occupant behavior...
A large class of human movements rely on the so-called hand-eye coordination for precise and versatile performance. Teleoperation of agile robotic systems in three dimensional environments would benefit from a detailed understanding of the perceptual control mechanisms used by the operator both for the design of operator interfaces and potentially for the use of gaze information as part of the control...
Transaction context is an important aspect that should be taken into account for reputation-based trust assessment, because referrals are bound to the situation-specific context in which they were created. The non-consideration of transaction context may cause several threats such as the value imbalance problem. Exploiting this weakness, a seller can build high reputation by selling cheap products...
The modernization of energy infrastructure otherwise called Power Grid, with integration of renewable energy sources like Solar, Wind has emerged as a key focus area across the world. Over 1.2 billion people do not have access to electricity which incudes over 550 million people in Africa and 300 million in India. Further to this situation, the report from International Energy Agency forecasts power...
The planning of goal-directed movement towards targets in different parts of space is an important function of the brain. Such visuo-motor planning and execution is known to involve multiple brain regions, including visual, parietal, and frontal cortices. To understand how these brain regions work together to both plan and execute goal-directed movement, it is essential to describe the dynamic causal...
As we all know, human vision is quite sensitive to abnormal behaviors, which is attributed to the discharging of the receptor cells in the brain visual cortex and the ensuing bioelectrical energy features. Inspired by this biological nature, this paper constructs a computing model to describe video dynamic energy, which can further improve the perception of machine vision to abnormal behaviors. Experiments...
Good accessibility is an important guarantee for maintenance operation tasks. Aiming at overcoming the deficiency that the degree of being accessible for points in space cannot be described by current indices related to accessibility and the problem that accessibility design and analysis cannot be conducted conveniently, for the first time, the paper proposes a modeling method for continuous quantization...
There is growing worldwide interest in the use of 3-PG model as tool for forest management. It requires only readily available site, climatic data and genetic characteristics of trees as inputs and predicts the time-course of stand development on a monthly basis in a form familiar to the forest manager. 3-PG is a stand-level model of forest growth, without its study of physiological ecology process...
Spatio-temporal interesting points feature is a key technology for a wide class of computer vision approaches to recognize human actions. In this paper, a novel bio-inspired model based spatio-temporal interesting points (BIM-STIP) framework is proposed. Different from traditional STIP framework, the introduction of bio-inspired model provides a biological theory for interest points detection and...
Visual saliency detection provides an alternative methodology to semantic image understanding in many applications such as region-based image retrieval and adaptive compression of images. In this paper, we propose an approach which utilizes both global and local cues to extract saliency information. Our method can achieve better performance than existing saliency detection methods in terms of precision...
Programmers spend a considerable amount of time navigating among many code fragments that may be spread across hundreds or even thousands of files. For example, one study found that programmers spent 35% of their time navigating [5]. Another study showed that 50% of programmers' time was spent foraging for information [7]. My work aims to increase programmer productivity through the design of new...
There is an increasing number of students using tablets in schools. Mobile devices gained popularity as an educational tool and there are many schools that use them frequently in educational activities to improve learning. We found that first year students of mechanical engineering in general have difficulties in understanding 3D shapes from 2D views. There are many Augmented Reality (AR) applications...
The human visual system is thought to use features of intermediate complexity for scene representation. How the brain computationally represents intermediate features is, however, still unclear. Here we tested and compared two widely used computational models — the biologically plausible HMAX model and Bag of Words (BoW) model from computer vision against human brain activity. These computational...
State-of-the-art methods for airport detection in panchromatic remote sensing images utilize very limit geometrical features of airport line segments. This paper proposes a novel method based on both bottom-up and top-down saliency. Noticed that airport runways have features of vicinity and parallelity, and their lengths are among certain range, the concept of near parallelity is introduced after...
The public space and social relations have been deeply modified by the influence of new technologies and connectivity. In the context of the contemporary city, urban furniture as an ensemble of elements serving for the habitability of public space, is facing new demands and requirements. The most prevalent ones are the widespread use of real-time communication technologies and energy consumption....
In order to evaluate balancing ability in each direction more objectively and analyze the correlations between balance ability and human basic information such as gender, height and weight, the complete dynamics model of balance process under external excitation was simplified as two order linear system reasonably in this study. The evaluation system based on visual stimulation was built to provide...
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