Path planning for assisting blind people in purposeful navigation

Blind people present dificulties for reaching objects of interest in the daily life. In this sense, the integration of a path planning module for assisting blind people in purposeful navigation is noteworthy. In this work, we present an algorithm that leverages the high capability of an embedded computer with graphics processing unit (GPU) NVIDIA Jetson TX2 for computing optimal paths to objects of interest. The algorithm computes the optimal path to the objective, considering changes in the environment and changes in the position of the user. The algorithm is efficient for computing new paths when the environment changes by reusing parts of previous computations. In order to compare the performance, the algorithms were implemented and evaluated in MATLAB, C++ and CUDA, for different size of the grid and percentage of unknown obstacles. We found that the implementation on GPU has a speed up of 20 times W.R.T the implementation in C++ and more than 400 times W.R.T the implementation in MATLAB. These results boost us to integrate this module to our main system based on a stereo camera and a haptic belt and so provide to the user assistance in purposeful navigation at real time

History of Computer Art

A large text presents the history of Computer Art. The history of the artistic uses of computers and computing processes is reconstructed from its beginnings in the fifties to its present state. It points out hypertextual, modular and generative modes to use computing processes in Computer Art and features examples of early developments in media like cybernetic sculptures, video tools, computer graphics and animation (including music videos and demos), video and computer games, pervasive games, reactive installations, virtual reality, evolutionary art and net art. The functions of relevant art works are explained more detailed than is usual in such histories. From October 2011 to December 2012 the chapters have been published successively in German (The English translation started in August 2013 and was completed in June 2014)

History of Computer Art

The development of the use of computers and software in art from the Fifties to the present is explained. As general aspects of the history of computer art an interface model and three dominant modes to use computational processes (generative, modular, hypertextual) are presented. The "History of Computer Art" features examples of early developments in media like cybernetic sculptures, computer graphics and animation (including music videos and demos), video and computer games, reactive installations, virtual reality, evolutionary art and net art. The functions of relevant art works are explained more detailed than usual in such histories. The German version was completed in December 2012. The last chapter of the English translation was published in June 2014. First update: September 2015

History of Computer Art

Die Entwicklung von Computer und Software von den fünfziger Jahren bis heute wird vorgestellt. Als Leitkriterien der Geschichte der Computerkunst werden ein Interface-Modell und drei Arten, Rechenprozesse einzusetzen (generativ, modular, hyptertextuell), vorgeschlagen. Die "Geschichte der Computerkunst"/"History of Computer Art" erörtert Beispiele aus frühen Entwicklungsphasen von Kunstformen wie Kybernetische Skulpturen, Computergraphik und -animation (einschließlich Musikvideos und Demos), Videokunst und Computerspielen, reaktive Installationen, Virtuelle Realität, Evolutionäre Kunst und Netzkunst. Die Funktionen der ausgewählten Werke werden detaillierter vorgestellt als dies in vergleichbaren Geschichten üblich ist. Die deutsche Version wurde bis Dezember 2012 kapitelweise in IASLonline Lektionen/Lessons in Net Art publiziert. Das letzte Kapitel der englischen Version wurde Juni 2014 veröffentlicht. Im September 2015 wurde ein erstes Update eingestellt

History of Computer Art, Second Edition

The development of the use of computers and software in art from the Fifties to the present is explained. As general aspects of the history of computer art an interface model and three dominant modes to use computational processes (generative, modular, hypertextual) are presented. The "History of Computer Art" features examples of early developments in media like cybernetic sculptures, computer graphics and animation (including music videos and demos), video and computer games, reactive installations, virtual reality, evolutionary art and net art. The functions of relevant art works are explained more detailed than usual in such histories. The second edition for the Book on Demand (Lulu Press, 2020) includes an update of chapter II.1.1 (first edition 2014)

The e-Volving Picturebook: Examining the Impact of New e-Media/Technologies On Its Form, Content and Function (And on the Child Reader)

The technology of the codex book and the habit of reading appear to be under attack currently for a variety of reasons explored in the Introduction of this Dissertation. One natural response to attack is a resulting effort to adapt in a bid to survive. Noël Carroll, leading American philosopher in the contemporary philosophy of art, touches on this concept in his discussion of the evolution of a new medium in his article, “Medium Specificity Arguments and Self-Consciously Invented Arts: Film, Video, and Photography,” from his Cambridge University Press 1996 text, Theorizing the Moving Image. Carroll proposes that any new medium undergoes phases of development (and I include new technology under that umbrella)). After examining Carroll’s theory this Dissertation attempts to apply it to the Children’s Picturebook Field, exploring the hypothesis that the published children’s narrative does evolve, has already evolved historically in response to other mediums/technologies, and is currently “e-volving” in response to emerging “e-media.” This discussion examines ways new media (particularly emerging e-media) affect the published children’s narrative form, content, and function (with primary focus on the picturebook form), and includes some examination of the response of the child reader to those changes. Chapter One explores the formation of the question, its value, and reviews available literature. Chapter Two compares the effects of an older sub-genre, the paper-engineered picturebook, with those of emerging e-picturebooks. Chapter Three compares the Twentieth Century Artist’s Book to picturebooks created by select past and current picturebook creators. Chapter Four first considers the shifting cultural mindset of Western Culture from a linear, word-based outlook to the non-linear, more visual approach fostered by the World Wide Web and supporting “screen” technologies; then identifies and examines current changes in form, content and function of the designed picturebooks that are developing “on the page” within the constraints of the codex book format. The Dissertation concludes with a review of Leonard Shlain’s 1998 text, The Alphabet Versus the Goddess: The Conflict Between Word and Image, using it as a departure point for final observations regarding unique strengths of the children’s picturebook as a learning tool for young children

Path Planning for Non-Playable Characters in Arcade Video Games using the Wavefront Algorithm

Search and planning is a common Artificial Intelligence task on videogames development. This exercise covers the design of Non-player character (NPC) behavior, content generation, and narrative's construction. This work focus on NPC behavior, specifically on path planning. This paper presents an implementation of an arcade videogame (Ms. Pacman type) with Unity, where the NPC's behavior (Ghosts) applies the Wavefront algorithm to find the shortest path to the Player Character (Mr. Pacman). This algorithm is an alternative to traditional algorithms the Djikstra algorithm and A-star used to solve this problem