Virtual Crowds

Virtual Crowds
Author: Nuria Palechano
Publisher: Springer Nature
Total Pages: 176
Release: 2022-05-31
Genre: Mathematics
ISBN: 3031792424

Download Virtual Crowds Book in PDF, Epub and Kindle

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: Springer Nature
Total Pages: 248
Release: 2022-05-31
Genre: Mathematics
ISBN: 3031025865

Download Virtual Crowds Book in PDF, Epub and Kindle

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 Pelechano
Publisher: Morgan & Claypool Publishers
Total Pages: 189
Release: 2008
Genre: Computers
ISBN: 1598296418

Download Virtual Crowds Book in PDF, Epub and Kindle

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

Crowd Simulation

Crowd Simulation
Author: Daniel Thalmann
Publisher: Springer Science & Business Media
Total Pages: 305
Release: 2012-10-03
Genre: Computers
ISBN: 1447144503

Download Crowd Simulation Book in PDF, Epub and Kindle

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.

Virtual Crowds

Virtual Crowds
Author: Mubbasir Kapadia
Publisher: Morgan & Claypool Publishers
Total Pages: 272
Release: 2015-11-01
Genre: Computers
ISBN: 162705829X

Download Virtual Crowds Book in PDF, Epub and Kindle

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.

Crypto Crowds

Crypto Crowds
Author: Matan Shapiro
Publisher: Berghahn Books
Total Pages: 156
Release: 2024-03-15
Genre: Social Science
ISBN: 180539293X

Download Crypto Crowds Book in PDF, Epub and Kindle

Ownership of cryptocurrencies features contrasting forms of mobilization. On one hand, it denotes association with a global crowd of unrelated individual investors, which expands as it attracts more members. On the other hand, it includes participation in grassroots communities, which are generally more insular. Crypto Crowds demonstrates how this tension generates political, economic and moral realities in different cultural and geographical contexts. Pioneering in its approach to cryptocurrency trading, this volume will inspire scholars interested in the sociality of decentralized business models, boom-and-bust cycles on the blockchain, libertarian utopias and other postmodern crowding phenomena.

Simulating Heterogeneous Crowds with Interactive Behaviors

Simulating Heterogeneous Crowds with Interactive Behaviors
Author: Nuria Pelechano
Publisher: CRC Press
Total Pages: 253
Release: 2016-10-26
Genre: Computers
ISBN: 1315353059

Download Simulating Heterogeneous Crowds with Interactive Behaviors Book in PDF, Epub and Kindle

This book provides a deep understanding of state-of-art methods for simulation of heterogeneous crowds in computer graphics. It will cover different aspects that are necessary to achieve plausible crowd behaviors. The book will be a review of the most recent literature in this field that can help professionals and graduate students interested in this field to get up to date with the latest contributions, and open problems for their possible future research. The chapter contributors are well known researchers and practitioners in the field and they include their latest contributions in the different topics required to achieve believable heterogeneous crowd simulation.

Modeling, Simulation and Visual Analysis of Crowds

Modeling, Simulation and Visual Analysis of Crowds
Author: Saad Ali
Publisher: Springer Science & Business Media
Total Pages: 414
Release: 2013-11-22
Genre: Computers
ISBN: 1461484839

Download Modeling, Simulation and Visual Analysis of Crowds Book in PDF, Epub and Kindle

Over the last several years there has been a growing interest in developing computational methodologies for modeling and analyzing movements and behaviors of ‘crowds' of people. This interest spans several scientific areas that includes Computer Vision, Computer Graphics, and Pedestrian Evacuation Dynamics. Despite the fact that these different scientific fields are trying to model the same physical entity (i.e. a crowd of people), research ideas have evolved independently. As a result each discipline has developed techniques and perspectives that are characteristically their own. The goal of this book is to provide the readers a comprehensive map towards the common goal of better analyzing and synthesizing the pedestrian movement in dense, heterogeneous crowds. The book is organized into different parts that consolidate various aspects of research towards this common goal, namely the modeling, simulation, and visual analysis of crowds. Through this book, readers will see the common ideas and vision as well as the different challenges and techniques, that will stimulate novel approaches to fully grasping “crowds."

Crowds and Party

Crowds and Party
Author: Jodi Dean
Publisher: Verso Books
Total Pages: 304
Release: 2016-02-09
Genre: Political Science
ISBN: 1781687668

Download Crowds and Party Book in PDF, Epub and Kindle

Crowds and Party channels the energies of the riotous crowds who took to the streets in the past five years into an argument for the political party. Rejecting the emphasis on individuals and multitudes, Jodi Dean argues that we need to rethink the collective subject of politics. When crowds appear in spaces unauthorized by capital and the state-such as in the Occupy movement in New York, London and across the world-they create a gap of possibility. But too many on the Left remain stuck in this beautiful moment of promise-they argue for more of the same, further fragmenting issues and identities, rehearsing the last thirty years of left-wing defeat. In Crowds and Party, Dean argues that previous discussions of the party have missed its affective dimensions, the way it operates as a knot of unconscious processes and binds people together. Dean shows how we can see the party as an organization that can reinvigorate political practice.

Crowds and Politics in North Africa

Crowds and Politics in North Africa
Author: Andrea Khalil
Publisher: Routledge
Total Pages: 143
Release: 2014-03-26
Genre: Political Science
ISBN: 1317810325

Download Crowds and Politics in North Africa Book in PDF, Epub and Kindle

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.