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Predicting buildings degradation and erosion by natural and artificial phenomena has been an unexplored area. In this article is presented natural and artificial phenomena simulations applied to a tridimensional model, using physics mechanics, created algorithms and using materials, which aims to be used to predict buildings level of destruction in the next years.
The preservation of the sites, monuments and other spaces, cultural heritage of the Humanity, has been one of the areas of greater use of computer graphics. This paper presents a methodology of expeditious and low-cost work aimed at virtual recreation of these historical spaces, which, through their availability on the web, allows its analysis and study by experts, as well as their access to the public,...
This paper presents the development of a virtual reality simulator for the management of a UAV (Unmanned Aerial Vehicle) focused on improving the quality of life of grown-up people. The present research has collected characteristics of gestures and physical movements from users made by other related research in order to study the same interaction within a virtual world. Through this research a smaller...
Least squares prediction is a technique used to foresee pixel values during image coding by finding the minimum square error of neighbouring pixels. It has shown considerable quality gains especially for complex images with high variations in pixel intensities. The drawback of this technique consists of high computational complexity, consuming the most significant part of processing time and resources...
The world population is aging, all countries are experiencing an increase of elder population. The pace of aging population in many developing countries is substantially faster than in the past. Consequently, these countries must adapt much more rapidly to this aging. Therapy and Physical activity helps to improve health and well-being in the elders, for it brings longevity and improves quality of...
This paper presents a solution that allows the users of a certain place to hear the sound of a TV, even if they are in a noisy environment. This gives the users a more efficient way to hear the sound of televisions in places where the volume of noise is high. The solution, named "s_TV" comprises two modules: the transmitter and the receiver. The transmitter module is composed by equipment...
Light field imaging is a promising new technology that allows the user not only to change the focus and perspective after taking a picture, as well as to generate 3D content, among other applications. However, light field images are characterized by large amounts of data and there is a lack of coding tools to efficiently encode this type of content. Therefore, this paper proposes the addition of two...
Being the ancient cultural heritage structures and artefacts so full of detail and relevance to studies related to our past, it would be desirable to have precise virtual replicas that could be freely explored without endangering important pieces of history. However, the costs to produce three-dimensional environments are sometimes discouraging, due to the significant cost of some 3D authoring tools,...
Rumination is a psychological process that is featured by a repetitive pattern of intrusive thoughts that, by focusing the person into painful cognitive contents, elicits suffering. Usually people try to deal with these ruminative thoughts by trying to avoid thinking, which paradoxically makes the thoughts even more intense. Several researchers proposed that ruminative thoughts are central in anxiety...
Hand and finger tracking has a major importance in healthcare, for rehabilitation of hand function required due to a neurological disorder, and in virtual environment applications, like characters animation for on-line games or movies. Current solutions consist mostly of motion tracking gloves with embedded resistive bend sensors that most often suffer from signal drift, sensor saturation, sensor...
Laparoscopic surgery (LS) has revolutionized traditional surgical techniques introducing minimally invasive procedures for diagnosis and local therapies. LSs have undeniable advantages, such as small patient incisions, reduced postoperative pain and faster recovery. On the other hand, restricted vision of the anatomical target, difficult handling of the surgical instruments, restricted mobility inside...
This paper describes the inGuide — Interactive Guide application, a context-aware tourist guide that is presently available to Android smartphones. This application takes advantage of technologies such as Augmented Reality and geolocation in order to provide contextual information in a simple and interactive way. inGuide is a modular application which provides a package management system avoiding...
Botnets became the preferred platform for launching attacks and committing fraud on enterprise networks and the Internet itself. Characterizing existing Botnets will help to coordinate and develop new technologies to face this serious security threat. Several approaches can be taken to study this phenomenon: analyze its source code, which can be a hard task mainly due to license restrictions; study...
The active creation of buildings as recently been the focus of the creation of virtual urban environments due to the countless advantages it presents in areas such as architecture, cinema and video games, and even in several commercial applications. The present paper demonstrates a quick method for the creation of 3D building models from floor plans and other data (for example, photographs) that allow...
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