Virtual Crowds
Virtual Crowds

Author: Mubbasir Kapadia

Publisher: Springer Nature

Published: 2022-05-31

Total Pages: 248

ISBN-13: 3031025865

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This volume presents novel computational models for representing digital humans and their interactions with other virtual characters and meaningful environments. In this context, we describe efficient algorithms to animate, control, and author human-like agents having their own set of unique capabilities, personalities, and desires. We begin with the lowest level of footstep determination to steer agents in collision-free paths. Steering choices are controlled by navigation in complex environments, including multi-domain planning with dynamically changing situations. Virtual agents are given perceptual capabilities analogous to those of real people, including sound perception, multi-sense attention, and understanding of environment semantics which affect their behavior choices. The roles and impacts of individual attributes, such as memory and personality are explored. The animation challenges of integrating a number of simultaneous behavior and movement demands on an agent are addressed through an open source software system. Finally, the creation of stories and narratives with groups of agents subject to planning and environmental constraints culminates the presentation.

Virtual Crowds
Virtual Crowds

Author: Nuria Palechano

Publisher: Springer Nature

Published: 2022-05-31

Total Pages: 176

ISBN-13: 3031792424

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There are many applications of computer animation and simulation where it is necessary to model virtual crowds of autonomous agents. Some of these applications include site planning, education, entertainment, training, and human factors analysis for building evacuation. Other applications include simulations of scenarios where masses of people gather, flow, and disperse, such as transportation centers, sporting events, and concerts. Most crowd simulations include only basic locomotive behaviors possibly coupled with a few stochastic actions. Our goal in this survey is to establish a baseline of techniques and requirements for simulating large-scale virtual human populations. Sometimes, these populations might be mutually engaged in a common activity such as evacuation from a building or area; other times they may be going about their individual and personal agenda of work, play, leisure, travel, or spectator. Computational methods to model one set of requirements may not mesh well with good approaches to another. By including both crowd and individual goals and constraints into a comprehensive computational model, we expect to simulate the visual texture and contextual behaviors of groups of seemingly sentient beings. Table of Contents: Introduction / Crowd Simulation Methodology Survey / Individual Differences in Crowds / Framework (HiDAC + MACES + CAROSA) / HiDAC: Local Motion / MACES: Wayfinding with Communication and Roles / CAROSA: Functional Crowds / Initializing a Scenario / Evaluating Crowds

Virtual Crowds
Virtual Crowds

Author: Mubbasir Kapadia

Publisher: Morgan & Claypool Publishers

Published: 2015-11-01

Total Pages: 272

ISBN-13: 162705829X

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This volume presents novel computational models for representing digital humans and their interactions with other virtual characters and meaningful environments. In this context, we describe efficient algorithms to animate, control, and author human-like agents having their own set of unique capabilities, personalities, and desires. We begin with the lowest level of footstep determination to steer agents in collision-free paths. Steering choices are controlled by navigation in complex environments, including multi-domain planning with dynamically changing situations. Virtual agents are given perceptual capabilities analogous to those of real people, including sound perception, multi-sense attention, and understanding of environment semantics which affect their behavior choices. The roles and impacts of individual attributes, such as memory and personality are explored. The animation challenges of integrating a number of simultaneous behavior and movement demands on an agent are addressed through an open source software system. Finally, the creation of stories and narratives with groups of agents subject to planning and environmental constraints culminates the presentation.

Crowd Simulation
Crowd Simulation

Author: Daniel Thalmann

Publisher: Springer Science & Business Media

Published: 2012-10-03

Total Pages: 305

ISBN-13: 1447144503

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Research into the methods and techniques used in simulating crowds has developed extensively within the last few years, particularly in the areas of video games and film. Despite recent impressive results when simulating and rendering thousands of individuals, many challenges still exist in this area. The comparison of simulation with reality, the realistic appearance of virtual humans and their behavior, group structure and their motion, and collision avoidance are just some examples of these challenges. For most of the applications of crowds, it is now a requirement to have real-time simulations – which is an additional challenge, particularly when crowds are very large. Crowd Simulation analyses these challenges in depth and suggests many possible solutions. Daniel Thalmann and Soraia Musse share their experiences and expertise in the application of: · Population modeling · Virtual human animation · Behavioral models for crowds · The connection between virtual and real crowds · Path planning and navigation · Visual attention models · Geometric and populated semantic environments · Crowd rendering The second edition presents techniques and methods developed since the authors first covered the simulation of crowds in 2007. Crowd Simulation includes in-depth discussions on the techniques of path planning, including a new hybrid approach between navigation graphs and potential-based methods. The importance of gaze attention – individuals appearing conscious of their environment and of others – is introduced, and a free-of-collision method for crowds is also discussed.

Simulating Heterogeneous Crowds with Interactive Behaviors
Simulating Heterogeneous Crowds with Interactive Behaviors

Author: Nuria Pelechano

Publisher: CRC Press

Published: 2016-10-26

Total Pages: 299

ISBN-13: 1498730396

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Provides crowd simulation methodology to populate virtual environments, for video games or any kind of applications that requires believable multi-agent behavior Presents the latest contributions on crowd simulation, animation, planning, rendering and evaluation with detailed algorithms for implementation purposes Includes perspectives of both academic researchers and industrial practitioners with reference to open source solutions and commercial applications, where appropriate

Emotion, Personality and Cultural Aspects in Crowds
Emotion, Personality and Cultural Aspects in Crowds

Author: Rodolfo Migon Favaretto

Publisher: Springer Nature

Published: 2019-08-29

Total Pages: 179

ISBN-13: 3030220788

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This practically-focused book presents a computational model for detection and analysis of pedestrian features in crowds from video sequences. The study of human behavior is a subject of great scientific interest and probably an inexhaustible source of research. The analysis of pedestrians and groups in crowds is relevant in several areas of application, such as security, entertainment, environmental and public spaces planning and social sciences. Cultural and personality aspects are attributes that can influence personal behavior and affect the group in which individuals belong. In this sense, we consider different ways of characterizing individuals and groups in crowds with respect to their relationship with the geometrical space and time. We discuss and describe an approach to extract and analyse, from the Computer Science point of view, emotions, personalities and cultural aspects from crowds and groups of pedestrians, using Computer Vision techniques. Extracting characteristics from real pedestrians and crowds, benefits other areas, such as: architecture and design (planning spaces to maximize pedestrian and group-environment fit); security and surveillance (design of evacuation plans considering characteristics of the crowds and detection of abnormal events); entertainment (more realistic crowds in movies and games reproducing characteristics from real pedestrians and crowds); social sciences (understanding of human behavior), among others. A big challenge in this area of research is the comparison with real life data. In this book, we successfully compared the results of the proposed approach with Psychology literature, where several studies aimed to analysis human behavior.

Crowds and Politics in North Africa
Crowds and Politics in North Africa

Author: Andrea Khalil

Publisher: Routledge

Published: 2014-03-26

Total Pages: 241

ISBN-13: 1317810317

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This book takes predominant crowd theory to task, questioning received ideas about ‘mob psychology’ that remain prevalent today. It is a synchronic study of crowds, crowd dynamics and the relationships of crowds to political power in Tunisia, Libya and Algeria (2011-2013) that has far reaching implications embedded in its thesis. One central theme of the book is gender, providing an in-depth look at women’s participation in the recent uprisings and crowds of 2011-2013 and the subsequent gender-related aspects of political transitions. The book also focuses on the social and political dynamics of tribalism and group belonging (‘asabiyya), including analysis and discussions with Libyan regional tribal chiefs, Libyan and Tunisian tribal members and citizens regarding their notions of tribal belonging. Crowd language and literature are also central to the book’s discussion of how crowds represent themselves, how we as observers represent crowds, and how crowds confront languages of authoritarianism and subjugation. Crowds and Politics in North Africa includes interviews with crowd participants and key civil society actors from Tunisia, Libya and Algeria. Among these, there are numerous interviews with Benghazi residents, activists and tribal leaders. One of the original case studies in the book is the crowd dynamics during and after the attack on the US consular installation in Benghazi, Libya. The book presents interviews and fieldwork within a literary and cultural theoretical context showing how crowds in the region resonate in forms of cultural resistance to authoritarianism. A valuable resource, this book will be of use to students and scholars with an interest in North African culture, society and politics more broadly.

Technologies for E-Learning and Digital Entertainment
Technologies for E-Learning and Digital Entertainment

Author: Zhigeng Pan

Publisher: Springer Science & Business Media

Published: 2008-07-07

Total Pages: 808

ISBN-13: 3540697349

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This book constitutes the refereed proceedings of the Third International Conference on E-learning and Games, Edutainment 2008, held in Nanjing, China, in June 2008. The 83 revised full papers presented together with the abstract of 5 keynote speeches were carefully reviewed and selected from a total of 219 submissions. The papers are organized in topical sections on e-learning platforms and tools, e-learning system for education, application of e-learning systems, e-learning resource management, interaction in game and education, integration of game and education, game design and development, virtual characters, animation and navigation, graphics rendering and digital media, as well as geometric modeling in games and virtual reality.

Stepping into Virtual Reality
Stepping into Virtual Reality

Author: Mario A. Gutiérrez A.

Publisher: Springer Nature

Published: 2023-08-11

Total Pages: 279

ISBN-13: 3031364872

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Virtual reality techniques are increasingly becoming indispensable in many areas. This book looks at how to generate advanced virtual reality worlds. It covers principles, techniques, devices and mathematical foundations, beginning with basic definitions, and then moving on to the latest results from current research and exploring the social implications of these. Very practical in its approach, the book is fully illustrated in colour and contains numerous examples, exercises and case studies. This textbook will allow students and practitioners alike to gain a practical understanding of virtual reality concepts, devices and possible applications.

Virtual Reality Therapy for Anxiety
Virtual Reality Therapy for Anxiety

Author: Elizabeth McMahon

Publisher: Routledge

Published: 2021-11-25

Total Pages: 250

ISBN-13: 1000473805

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Practical, down to earth, clearly written, and easy for therapists to understand and apply, Virtual Reality Therapy for Anxiety is a useful guide for any clinician treating anxiety, regardless of setting (in-office or via telehealth), theoretical orientation, or level of training. Written by an experienced psychologist who has used multiple VR systems since 2010, it’s the only up to date, clinically informed, evidence-based training manual available. Easy-to-understand concepts and diagrams explain anxiety and its treatment, and the book incorporates research findings and clinical expertise. VRT is described step by step with multiple case examples, and an extended case-vignette chapter presents a session-by-session treatment protocol of a complex case with transcript excerpts. Key findings and quotations from research are also presented. After completing the guide, therapists and other mental health professionals will understand the unique clinical benefits of VR, be prepared to use VR in therapy comfortably and effectively either in the office or remotely, and will have expertise in a new, needed, and empirically validated treatment for a common clinical problem.