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Many visualizations have proven to be effective in supporting various software related tasks. Although multiple media can be used to display a visualization, the standard computer screen is used the most. We hypothesize that the medium has a role in their effectiveness. We investigate our hypotheses by conducting a controlled user experiment. In the experiment we focus on the 3D city visualization...
We introduce Code Park, a novel tool for visualizing codebases in a 3D game-like environment. Code Park aims to improve a programmer's understanding of an existing codebase in a manner that is both engaging and intuitive, appealing to novice users such as students. It achieves these goals by laying out the codebase in a 3D park-like environment. Each class in the codebase is represented as a 3D room-like...
It is extremely difficult for visually impaired people to walk in strange places, because it is extremely challenging for them to know where they are, the direction in which to move, and the destination. Pedestrian navigation systems such as Google Maps have become popular as a result of the evolution and popularization of smartphones and portable tablet devices. However, it is difficult for visually...
Augmented Reality is changing education in a dramatic way and it brings a new dimension to teaching and learning practices through amazing visualization of the real world in an interactive environment. The aim of this research is focused at developing a prototype of mobile based Augmented Reality application using Vuforia and Unity which will be helpful and valuable for students in reinforcing their...
Although point cloud data (PCD) are easily measured using a RGB-Depth sensor such as Kinect and Xtion, measured PCD have undesirable noise and fluctuation of values. In this paper, a curved surface fitting method using a raster-scanning window is proposed to smooth original organized PCD with noise. The method allows PCD to be fitted to numerous small quadratic curved surfaces and to be smoothed while...
Myocardial fibrosis is recognized as a physio-pathologic substrate of main cardiovascular syndromes such as myocardial infraction or heart failure. Knowing that fibrosis leads to increased myocardial stiffness, elastography techniques, such as shear wave imaging, has been showed to detect for the detection Fibrotic Tissue (FT) (Liver, arteries, …). However, its application on the heart still remain...
In large software projects, it can be hard to understand the actual architecture of the implemented software systems if current design documents are outdated or do not exist at all. For systems based on the OSGi component specification, which are used to build quite large applications with back-end and front-end services, tools for visualizing the actual architecture can help to understand the system...
This paper introduces our approach to a real-time synchronous collaborative modeling of software systems using 3D UML in a way similar to shared Google Document online with the aim to reduce the complexity of UML models and to increase work efficiency. In our approach, we decided to visualize the system with 2D UML diagrams on interconnected layers containing components (in class diagrams) or use...
The present paper describes a dual approach using pseudo-3D vision for Machine-Awareness in indoor environment. Provided by color and depth cameras of the a Kinect system, the aforementioned duality presents an appealing solution for robots' 3D-vision. Placing the human-robot and in a more general way the human-machine interactions as a key outcome of the expected visual Machine-Awareness, the proposed...
Recently, a new functional neuroimaging method called fUS was proposed, which is based on high-frame-rate Power Doppler imaging. So far, fUS has only been performed on rodents, but major issues in neuroscience such as cerebral asymmetries and language learning are mainly studied in birds. Here, we show the first successful fUS measurements on a non-mammalian species without cortical brain architecture,...
The ability to visualize breast lesion vascularity and quantify the vascular heterogeneity using contrast-enhanced 3-D nonlinear ultrasound imaging was investigated in a clinical population. Patients (n = 236) identified with breast lesions on mammography were scanned using power Doppler imaging, contrast-enhanced 3D HI, and 3D SHI on a modified Logiq 9 scanner (GE Healthcare). Time-intensity curve...
We propose a method for precise point-based see-through visualization in which feature regions are highlighted. And by using this method we can recognize the 3D structures of the cultural heritage clearly. The recent rapid development of laser scanners has enabled the precise measurement of real cultural heritage objects. In the measurement, we acquire a point cloud consisting of a large scale of...
The use of Virtual Environments in system control operation, in particular power systems (power generation and propagation), provides new paradigms to daily activities of monitoring and controlling. The existence of a three-dimensional geometric model, true to the real structures, when used to develop Virtual Reality systems, allows the acquisition of mental models that improve communication between...
Digital recreations of historical sites and events are important tools both for academic researchers [6,7] and for public interpretation [7,9]. Current 3D visualization and VR technologies enable these recreations to be increasingly immersive and engaging [10,14]. This poster describes a case study based on a mid-twentieth century Chester dance hall, examining the possibilities and limitations of...
As everyone knows, the time of virtual reality has come, how to control and correct use of VR has become a significant topic. "In the era of virtual reality better humancomputer interaction", "virtual reality interactive context and traditional context where is the difference in space", "touch interactive virtual reality experience what? Through the manmachine interface design,...
The paper is devoted to modeling of single-layer garments as developable median surfaces, modeled in the form of a thin supple shell. The products are modeled in Maple 9.5 and Embarcadero RAD Studio. The modelling of conical skirts considering seams is performed to demonstrate the space form of garments in the gravity field of elastic materials. Also the product aeroman is modelled which brings the...
The emerging of BIM (Building Information Modeling) techniques will change traditional procedures of design and maintenance for electric substations. In addition, Computational Holography, supported by wearable computers, has the potential to allow simultaneous engineering work, based on mixed reality and computer vision capabilities. It is believed that this set of tools will increase engineering...
This article presents the objectives of the project, Training of Trainers in Robotics for Schools in Vulnerable Areas of Costa Rica as well as the main activities, and the results that have been obtained in its first phase of execution. This is a joint project of the School of Informatics of the National University of Costa Rica (UNA), the Costa Rican Institute on Drugs (ICD) and the Ministry of Public...
In this paper, we evaluate the quality of laser projection light field 3D display and propose a comprehensive evaluation of visual fatigue. Subjective questionnaires including the feeling about the quality of two displays and degree of visual fatigue, as well as objective indicators such as Electrocardiograph (ECG) and Electroencephalography (EEG) are recorded during the whole experiment. The results...
With the growing number of mining datasets, it becomes increasingly difficult to explore interesting rules because of the large number of resultant and its nature complexity. Studies on human perception and intuition show that graphical representation could be a better illustration of how to seek information from the data using the capabilities of human visual system. In this work, we present and...
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