Simulating And Generating Motions Of Human Figures
DOWNLOAD
Download Simulating And Generating Motions Of Human Figures PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Simulating And Generating Motions Of Human Figures book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Simulating And Generating Motions Of Human Figures
DOWNLOAD
Author : Katsu Yamane
language : en
Publisher: Springer Science & Business Media
Release Date : 2004-01-15
Simulating And Generating Motions Of Human Figures written by Katsu Yamane and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-01-15 with Computers categories.
This book focuses on two issues related to human figures: realtime dynamics computation and interactive motion generation. In spite of the growing interest in human figures as both physical robots and virtual characters, standard algorithms and tools for their kinematics and dynamics computation have not been investigated very much. "Simulating and Generating Motions of Human Figures" presents original algorithms to simulate, analyze, generate and control motions of human figures, all focusing on realtime and interactive computation. The book provides both practical methods for contact/collision simulation essential for the simulation of humanoid robots and virtual characters and a general framework for online, interactive motion generation of human figures based on the dynamics simulation algorithms.
Simulation Of Human Motion Data Using Short Horizon Model Predictive Control
DOWNLOAD
Author : Marco Jorge Tome da Silva
language : en
Publisher:
Release Date : 2008
Simulation Of Human Motion Data Using Short Horizon Model Predictive Control written by Marco Jorge Tome da Silva and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.
Many data-driven animation techniques are capable of producing high quality motions of human characters. Few techniques, however, are capable of generating motions that are consistent with physically simulated environments. Physically simulated characters, in contrast, are automatically consistent with the environment, but their motions are often unnatural because they are difficult to control. We present a model-predictive controller that yields natural motions by guiding simulated humans toward real motion data. During simulation, the predictive component of the controller solves a quadratic program to compute the forces for a short window of time into the future. These forces are then applied by a low-gain proportional-derivative component, which makes minor adjustments until the next planning cycle. The controller is fast enough for interactive systems such as games and training simulations. It requires no precomputation and little manual tuning. The controller is resilient to mismatches between the character dynamics and the input motion, which allows it to track motion capture data even where the real dynamics are not known precisely. The same principled formulation can generate natural walks, runs, and jumps in a number of different physically simulated surroundings.
Human Motion Simulation
DOWNLOAD
Author : Karim Abdel-Malek
language : en
Publisher: Academic Press
Release Date : 2013-05-30
Human Motion Simulation written by Karim Abdel-Malek and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-05-30 with Computers categories.
Simulate realistic human motion in a virtual world with an optimization-based approach to motion prediction. With this approach, motion is governed by human performance measures, such as speed and energy, which act as objective functions to be optimized. Constraints on joint torques and angles are imposed quite easily. Predicting motion in this way allows one to use avatars to study how and why humans move the way they do, given specific scenarios. It also enables avatars to react to infinitely many scenarios with substantial autonomy. With this approach it is possible to predict dynamic motion without having to integrate equations of motion -- rather than solving equations of motion, this approach solves for a continuous time-dependent curve characterizing joint variables (also called joint profiles) for every degree of freedom. Introduces rigorous mathematical methods for digital human modelling and simulation Focuses on understanding and representing spatial relationships (3D) of biomechanics Develops an innovative optimization-based approach to predicting human movement Extensively illustrated with 3D images of simulated human motion (full color in the ebook version)
Simulating Humans
DOWNLOAD
Author : Norman I. Badler
language : en
Publisher: Oxford University Press
Release Date : 1993-06-17
Simulating Humans written by Norman I. Badler and has been published by Oxford University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993-06-17 with Computers categories.
During the past decade, high-performance computer graphics have found application in an exciting and expanding range of new domains. Among the most dramatic developments has been the incorporation of real-time interactive manipulation and display for human figures. Though actively pursued by several research groups, the problem of providing a synthetic or surrogate human for engineers and designers already familiar with computer-aided design techniques was most comprehensively solved by Norman Badler's computer graphics laboratory at the University of Pennsylvania. The breadth of that effort as well as the details of its methodology and software environment are presented in this volume. The book is intended for human factors engineers interested in understanding how a computer-graphics surrogate human can augment their analyses of designed environments. It will also inform design engineers of the state of the art in human figure modeling, and hence of the human-centered design central to the emergent concept of concurrent engineering. In fulfilling these goals, the book additionally documents for the entire computer graphics community a major research effort in the interactive control of articulated human figures.
Development Of Marker Based Human Motion Capture Systems For Assembly Simulation And Ergonomic Analysis
DOWNLOAD
Author : Sajeev C. Puthenveetil
language : en
Publisher:
Release Date : 2013
Development Of Marker Based Human Motion Capture Systems For Assembly Simulation And Ergonomic Analysis written by Sajeev C. Puthenveetil and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with Human locomotion categories.
"In aerospace industry, the assembly operator is often exposed to potential ergonomic injuries due to awkward postures while working in confined spaces. Manually generating worker postures in simulation software for ergonomic analysis is cumbersome. This research focuses on the use of marker-based optical motion capture technology to generate human motion simulations in real-time for ergonomic analysis. To address the challenges involved in capturing human motions in a real work environment, an assembly operation was simulated in a four-walled Computer Automated Virtual Environment (CAVE) which provides an immersive 3D environment to the worker performing the assembly operation. Multiple cameras were set-up to capture motion data during fastening operation on a physical fuselage mock-up model as well as during virtual fastening developed using the CAVE. To facilitate the setting up of a portable turn-key motion capture system, a methodology for placing multiple cameras was developed. The process of transforming body joint coordinates of the human skeleton model in the motion capture system to the digital human model used for ergonomic analysis is explained. Anomalies in human motion simulation during motion capture were identified and corrected in real-time using anatomical body joint limits and a Kalman filter based predictive filtering algorithm, without the need for post-processing of motion data. The developed system has been demonstrated for human motion capture, graphic simulation and ergonomic analysis of fastening operation on a physical mock-up model and also virtual model of the belly section of an aircraft fuselage"--Abstract, leaf iii.
Making Them Move
DOWNLOAD
Author : Norman I. Badler
language : en
Publisher: Taylor & Francis
Release Date : 2017-09-08
Making Them Move written by Norman I. Badler and has been published by Taylor & Francis this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-09-08 with Computers categories.
Current computer graphics hardware and software make it possible to synthesize near photo-realistic images, but the simulation of natural-looking motion of articulated figures remains a difficult and challenging task. Skillfully rendered animation of humans, animals, and robots can delight and move us, but simulating their realistic motion holds great promise for many other applications as well, including ergonomic engineering design, clinical diagnosis of pathological movements, rehabilitation therapy, and biomechanics. Making Them Move presents the work of leading researchers in computer graphics, psychology, robotics and mechanical engineering who were invited to attend the Workshop on the Mechanics, Control and Animation of Articulated Figures held at the MIT Media Lab in April 1989. The book explores biological and robotic motor control, as well as state-of-the-art computer graphics techniques for simulating human and animal figures in a natural and physically realistic manner.
Measuring Modelling And Minimizing Perceived Motion Incongruence For Vehicle Motion Simulation
DOWNLOAD
Author : Diane Cleij
language : en
Publisher: Logos Verlag Berlin GmbH
Release Date : 2020-01-28
Measuring Modelling And Minimizing Perceived Motion Incongruence For Vehicle Motion Simulation written by Diane Cleij and has been published by Logos Verlag Berlin GmbH this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-01-28 with Computers categories.
Humans always wanted to go faster and higher than their own legs could carry them. This led them to invent numerous types of vehicles to move fast over land, water and air. As training how to handle such vehicles and testing new developments can be dangerous and costly, vehicle motion simulators were invented. Motion-based simulators in particular, combine visual and physical motion cues to provide occupants with a feeling of being in the real vehicle. While visual cues are generally not limited in amplitude, physical cues certainly are, due to the limited simulator motion space. A motion cueing algorithm (MCA) is used to map the vehicle motions onto the simulator motion space. This mapping inherently creates mismatches between the visual and physical motion cues. Due to imperfections in the human perceptual system, not all visual/physical cueing mismatches are perceived. However, if a mismatch is perceived, it can impair the simulation realism and even cause simulator sickness. For MCA design, a good understanding of when mismatches are perceived, and ways to prevent these from occurring, are therefore essential. In this thesis a data-driven approach, using continuous subjective measures of the time-varying Perceived Motion Incongruence (PMI), is adopted. PMI in this case refers to the effect that perceived mismatches between visual and physical motion cues have on the resulting simulator realism. The main goal of this thesis was to develop an MCA-independent off-line prediction method for time-varying PMI during vehicle motion simulation, with the aim of improving motion cueing quality. To this end, a complete roadmap, describing how to measure and model PMI and how to apply such models to predict and minimize PMI in motion simulations is presented. Results from several human-in-the-loop experiments are used to demonstrate the potential of this novel approach.
Distributed And Parallel Optimization Of Captured Human Motions For The Generation Of Robust And Stable Motions On Simulated Humanoid Robots
DOWNLOAD
Author : Piyali Nath
language : en
Publisher:
Release Date : 2014
Distributed And Parallel Optimization Of Captured Human Motions For The Generation Of Robust And Stable Motions On Simulated Humanoid Robots written by Piyali Nath and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
There are several areas of research in the field of motion learning for robots. RoboCanes, a research group belonging to the Department of Computer Science at University of Miami, uses the process of recording a human motion and optimizing the same to get a stable motion for a simulated robot in the framework for the agent code. The major downside of this approach is that this optimization process takes hours to return a good set of parameters which led to the need of a fast parallelizing approach. This thesis is about an extension of the existing framework to generate stable motions for simulated humanoid robots using a motion capture framework and then optimizing the motions efficiently in a distributed and parallel environment. This approach is based on a client server network of systems where the server system controls the optimization process and distributes the particles (candidate solutions of an optimization process) to multiple client systems, which are responsible for running simulations individually, using the parameters sent by the server and then evaluating the error and returning it to the server. The experiments are conducted on three different experimental setups with four motion files and three optimization algorithms. The performance of this technique is measured with varying number of clients, each of which show considerable speedup as compared to the serial process.
Principles Of Flight Simulation
DOWNLOAD
Author : David Allerton
language : en
Publisher: John Wiley & Sons
Release Date : 2009-11-16
Principles Of Flight Simulation written by David Allerton and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-11-16 with Technology & Engineering categories.
Principles of Flight Simulation is a comprehensive guide to flight simulator design, covering the modelling, algorithms and software which underpin flight simulation. The book covers the mathematical modelling and software which underpin flight simulation. The detailed equations of motion used to model aircraft dynamics are developed and then applied to the simulation of flight control systems and navigation systems. Real-time computer graphics algorithms are developed to implement aircraft displays and visual systems, covering OpenGL and OpenSceneGraph. The book also covers techniques used in motion platform development, the design of instructor stations and validation and qualification of simulator systems. An exceptional feature of Principles of Flight Simulation is access to a complete suite of software (www.wiley.com/go/allerton) to enable experienced engineers to develop their own flight simulator – something that should be well within the capability of many university engineering departments and research organisations. Based on C code modules from an actual flight simulator developed by the author, along with lecture material from lecture series given by the author at Cranfield University and the University of Sheffield Brings together mathematical modeling, computer graphics, real-time software, flight control systems, avionics and simulator validation into one of the faster growing application areas in engineering Features full colour plates of images and photographs. Principles of Flight Simulation will appeal to senior and postgraduate students of system dynamics, flight control systems, avionics and computer graphics, as well as engineers in related disciplines covering mechanical, electrical and computer systems engineering needing to develop simulation facilities.
Handbook Of Digital Human Modeling
DOWNLOAD
Author : Vincent G. Duffy
language : en
Publisher: CRC Press
Release Date : 2016-04-19
Handbook Of Digital Human Modeling written by Vincent G. Duffy and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-04-19 with Computers categories.
The rapid introduction of sophisticated computers, services, telecommunications systems, and manufacturing systems has caused a major shift in the way people use and work with technology. It is not surprising that computer-aided modeling has emerged as a promising method for ensuring products meet the requirements of the consumer. The Handbook of D