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We describe a collaborative software engineering course between sighted college students and high school students with visual impairments. We designed the course as a mentorship experience, in which one college student mentor is connected to one high school student mentee. Each pair of students is responsible for a programming project. The students must learn to communicate programming concepts and...
The first virtual reality (VR) systems have hit the shelves, and 2017 may become the year where VR finally enters the homes of consumers in a big way. By allowing users to perceive and interact in a natural manner, VR offers the promise of realistic experiences of familiar, foreign, and fantastic virtual places and events. However, should we always opt for the highest degree of fidelity when striving...
Representative distribution of body shapes is needed when simulating crowds in real-world situations, e.g., for city or event planning. Visual realism and plausibility are often also required for visualization purposes, while these are the top criteria for crowds in entertainment applications such as games and movie production. Therefore, achieving representative and visually plausible body-shape...
NuSMV is a well-known tool for system verification that permits to verify both CTL and LTL properties. Although the tool is very powerful, it offers a minimal support for the editing and validation (e.g., by simulation) of models and of requirements specified as temporal properties. In this paper, we propose NuSeen, a framework that assists a designer during the modeling and V&V activities when...
Accessibility is an integral element of Human Computer Interaction (HCI) domain which deals with building the tools in the digital ecosystem that shall be used universally by all categories of users irrespective of their disabilities. For persons with disabilities the security in the digital environments acquires increased significance as they are one among the leading soft targets. Phishing is an...
Through their experience with the ICERT REU program at the Texas Advanced Computing Center (TACC), two undergraduate students from the University of Puerto Rico and the University of Florida have initiated a collaboration between their home institutions and TACC exploring the possibility of using immersion to simulate perceptual disturbances. Perceptual disturbances are subjective in nature, and difficult...
Our study investigates the effects of (non-)isometric mappings between physical movements and virtual motions in the virtual environment (VE) on walking biomechanics of older adults. Three primary domains (pace, base of support and phase) of spatio-temporal and temporo-phasic parameters were used to evaluate gait performance. Our results show similar results in pace and phasic domains when older adults...
Initial results on a fast approach for detecting straight line segments based on the combination of local search and Hough Transform (HT) is discussed in this paper. Though HT is a robust method for extracting patterns from noisy images, it does not regard the level of occlusions and the minimum allowable line segment length. We propose a Sliding Window (SW) concept which eliminates most of the spurious...
Recently sparse representation has been applied to visual tracking by modeling the target appearance using a sparse approximation over the template set. However, this approach is limited by the high computational cost of the ℓ1-norm minimization involved, which also impacts on the amount of particle samples that we can have. This paper introduces a basic constraint on the self-representation of the...
Video skimming is a process of generating a shorter yet fully comprehensible version of a given video as its dynamic summary. A generic skimming system involves division of the video into segments and selecting the segments based on their suitability. The suitability is often obtained considering various features of the video and combining their individual contributions. Suggesting that the combination...
In this paper, we propose an algorithm for missing value recovery of visual data such as image or video. These missing values may result from the corruption in acquisition process, or user-specified unexpected outliers. This problem exists in wide range of applications. We use the nuclear norm (NN) regularization to enforce the global consistency of the image, while the total variation (TV) regularization...
Visualization helps us to understand single-label and multi-label classification problems. In this paper, we show several standard techniques for simultaneous visualization of samples, features and multi-classes on the basis of linear regression and matrix factorization. The experiment with two real-life multi-label datasets showed that such techniques are effective to know how labels are correlated...
Diffusion-based salient region detection has recently received intense research attention. In this paper, we propose a salient region detection method based on the foreground and background propagation with manifold ranking. By considering the spatial variance of superpixel clusters, foreground and background seed regions are extracted preliminarily. Then, in order to produce a pixel-accurate saliency...
In this paper, a simple and efficient method, based on Quaternionic Distance Based Weber Descriptor (QDWD) and object cues, is proposed for saliency detection. Firstly, QDWD, which was initially designed for detecting outliers in color images, is used to represent the directional cues in an image. Meanwhile, two low-level priors, namely the color contrast and center cue of the image, are utilized...
Recently, reviews of goods are one of the important factors which have an influence on the consumer's buying behavior. Under the situation, information aggregation of reviews has attracted much attention in electronic commerce (EC) site. In this study we propose a review recommendation system target on golf EC site. In our proposal system, reviews are scored by the evaluation of characteristic words...
Visual discomfort (VD) is inevitable as long as stereoscopy is used in 3D displays, and there's a trade-off between depth impression and visual comfort. For this reason, technologies that control depth impression considering VD perception have attracted great interest of researchers. However, VD perception significantly varies according to various personal-factors as well as environmental factors,...
Skin appearance is almost universally the object of gender-related expectations and stereotypes. This not with standing, remarkably little work has been done on establishing quantitatively whether skin texture can be used for gender discrimination. We present a detailed analysis of the skin texture of 43 subjects based on two complementary imaging modalities afforded by a visible-light dermoscope...
A process graph is a graph designed to visually explain the action of programs which make use of the fork and wait system calls. We outline a tool that automatically generates process graphs for a class of C programs. The key idea behind our tool is to use a program's control flow graph (CFG) to determine its process graph.
The Linked Open Data provides useful information on huge number of related entities gathered from numerous distributed data sources residing in the cloud. Searching for the required information in this big data is one of the key challenges, in the domain of Information Retrieval, where various studies have been conducted for multiple purposes. These studies highlighted three main challenges: querying...
In this paper, by using geodesic distance and compactness prior, we present some effective improvements concerning the two important aspects of diffusion-based methods: the construction of the diffusion matrix and seed vector. First, based on the geodesic distance, we construct a 2-layer knn graph. Compared with the most frequently used 2-layer neighborhood graph, our graph does not only effectively...
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