David González Ortega

Mobile Serious Game using Augmented Reality for Supporting Children's Learning about Animals

This article introduces a new Serious Game with Augmented Reality for children and handicapped people. A platform based on a zoo has been virtually created. With this application, the users can increase their knowledge about a specific topic, in this case, animals. We have designed several 3D elements according to the theme, including a main scene that leads to the different scenes contained in the game. The user can interact with those elements and scenes through the mobile phone, thanks to the touch screen.

Educational Tourism through a Virtual Reality Platform

Abstract This article presents a Virtual Reality Serious Game that allows the user to increase the knowledge about the city of Valladolid in Spain. With this goal, the Main Square and some of the historic buildings in the downtown have been virtually recreated. We have taken advantage of the characteristic tiled floor of the town hall square to represent a game board. Different tiled floors are squares which hide questions behind. The user plays using a Natural User Interface based on Microsoft® Kinect.

Real Time GPU-Based Fuzzy ART Skin Recognition

Graphics Processing Units (GPUs) have evolved into powerful programmable processors, becoming increasingly used in many research fields such as computer vision. For non-intrusive human body parts detection and tracking, skin filtering is a powerful tool. In this paper we propose the use of a GPU-designed implementation of a Fuzzy ART Neural Network for robust real-time skin recognition. Both learning and testing processes are done on the GPU using chrominance components in TSL color space. Within the GPU, classification of several pixels can be made simultaneously, allowing skin recognition at high frame rates. System performance depends both on video resolution and number of neural network committed categories. Our application can process 296 fps or 79 fps at video resolutions of 320x240 and 640x480 pixels respectively.

The EPIK Island - Serious Game for Stroke Recovery.

In this paper we describe the features of a serious game with virtual reality for use as a complement in rehabilitation therapies for patients who have suffered a stroke with subsequent motor and/or cognitive sequelae. We will expose the importance of rehabilitation in this kind of patients, and how virtual reality video games can be a good complement to the classical rehabilitation method. The game is divided in two applications: one for the therapists where they can change the parameters of the game for adapting it to the patient’s limitations, and the user’s application where the patient can play the different scenes and can perform the prescribed rehabilitation exercises. Each one of the scenes allows the patient to perform some movements aimed at the rehabilitation of some of its limitations, both motor and cognitive.