Kinect range sensing

The 1/f family of fractal random processes model a truly extraordinary range of natural and man-made phenomena, many of which arise in a variety of signal processing scenarios. Yet despite their apparent importance, the lack of convenient representations for 1/f processes has, at least until recently, strongly limited their popularity. In this paper, we demonstrate that 1/f processes are, in a broad sense, optimally represented in terms of orthonormal wavelet bases. Specifically, via a useful frequency domain characterization for 1/f processes, we develop the wavelet expansion's role as a Karhunen-Loeve-type expansion for 1/f processes. As an illustration of potential, we show that wavelet based representations naturally lead to highly efficient solutions to some fundamental detection and estimation problems involving 1/f processes

Wavelet-based representations for the 1/f family of fractal processes : Fractals in electrical engineering

A review of log-polar imaging for visual perception in robotics

http://www.ceti.gr/~chrisem/Files/Mobile_Guides_Taxonomy_of_Architectures_ContextAwareness_Technologies_and_Applications.pdf

Review: Mobile guides: Taxonomy of architectures, context awareness, technologies and applications

Our understanding of the effectiveness of motion-based touchless games for autistic children is limited, because of the small amount of empirical studies and the limits of our current knowledge on autism. This paper offers two contributions. First, we provide a survey and a discussion of the existing literature. Second, we describe a field study that extends the current body of empirical evidence of the potential benefits of touchless motion-based gaming for autistic children. Our research involved five autistic children and one therapist in the experimentation of a set of Kinect games at a therapeutic center for a period of two and a half months. Using standardized therapeutic tests, observations during game sessions, and video analysis of over 20 hours of children's activities, we evaluated the learning benefits in relationship to attentional skills and explored several factors in the emotional and behavioral sphere. Our findings show improvements of the considered learning variables and help us to better understand how autistic children experience motion-based touchless play. Overall, our research sheds a light on the opportunities offered full body touchless games for therapy and education of these special users.

Exploring motion-based touchless games for autistic children's learning

In this paper we present a virtual character controlled by an actor in real time, who talks with an audience through an augmented mirror. The application, which integrates video images, the avatar and other virtual objects within an Augmented Reality system, has been implemented using a mixture of technologies: two kinect systems for motion capture, depth map and real images, a gyroscope to detect head movements, and control algorithms to manage avatar emotions.

/pdf/augmented-mirror-interactive-augmented-reality-system-based-1j70qfkk58.pdf

Augmented mirror: interactive augmented reality system based on kinect

In this paper an Augmented Reality system for teaching key developmental abilities for individuals with ASD is described. The system has been designed as an augmented mirror where users can see themselves in a mirror world augmented with virtual objects. Regarding the content the tool is designed with the aim of facilitating the acquisition of certain skills in children with ASD. From a technical point of view, it has been necessary to solve two problems to develop the tool. The first one has been how to capture the user’s movements, without wearing invasive devices, to animate their virtual avatar. A Kinect device has been chosen. The other problem has been to mix in the augmented virtual scene real objects located at different depths. An OSG shader has been developed, of which details will given in this paper.

/pdf/a-kinect-based-augmented-reality-system-for-individuals-with-4erlpjnkgd.pdf

Inmaculada Coma

Papers

Augmented mirror: interactive augmented reality system based on kinect

A kinect-based augmented reality system for individuals with autism spectrum disorders

A Kinect-based Augmented Reality System for Individuals with Autism Spectrum Disorders.

Combining traditional and indirect augmented reality for indoor crowded environments. A case study on the Casa Batlló museum

Towards a simulation-based tuning of motion cueing algorithms