A5008062896- Computer Graphics and Visualization Techniques
- Human Motion and Animation
- 3D Shape Modeling and Analysis
- Reinforcement Learning in Robotics
- Artificial Intelligence in Games
- Computational Geometry and Mesh Generation
- Human Pose and Action Recognition
- Advanced Numerical Analysis Techniques
- Evacuation and Crowd Dynamics
- Data Visualization and Analytics
- Video Analysis and Summarization
- Traffic control and management
- Topology Optimization in Engineering
- Advanced Vision and Imaging
- Face recognition and analysis
- Augmented Reality Applications
- Numerical methods in engineering
- Data Management and Algorithms
- Composite Structure Analysis and Optimization
- 3D Surveying and Cultural Heritage
- Probabilistic and Robust Engineering Design
- Video Surveillance and Tracking Methods
- Interactive and Immersive Displays
- Human Mobility and Location-Based Analysis
- Robotic Path Planning Algorithms
Universidade Federal do Ceará
2015-2024
New York Proton Center
2021
Université Toulouse III - Paul Sabatier
2017
TH Köln - University of Applied Sciences
2017
Lusíada University of Lisbon
2017
University of Lisbon
2017
Universidade Estadual Paulista (Unesp)
2017
Universidad de Los Andes
2017
Universidade do Vale do Rio dos Sinos
2017
Universidade Federal do Rio Grande do Sul
2017
Abstract Tangent operators and design sensitivities are derived for transient non‐linear coupled problems. The solution process the formation of tangent presented in a systematic manner generalized response functional formulated via both direct differentiation adjoint methods. formulations suitable finite element implementations. Analyses systems, with materials that exhibit history dependent response, may be obtained directly by applying analyses systems. Rate‐independent elastoplasticity...
Most recent crowd simulation algorithms equip agents with a synthetic vision component for steering. They offer promising perspectives through more realistic of the way humans navigate according to their perception surrounding environment. In this paper, we propose new perception/motion loop steering along collision free trajectories that significantly improves quality vision-based simulators. contrast solutions where avoid collisions in purely reactive (binary) way, suggest exploring full...
The use of simulators for shooting skill training is becoming more widespread with technological advances. However, this kind still not accessible to many institutions because its cost acquisition, maintenance, portability and system comprehensiveness. In context, paper proposes requirements a viable model implementation portable low simulator, while maintaining the level immersion focus on large number simultaneous trainees. For basis proposal, initially, there was study market simulators,...
Abstract A systematic approach for the design of weakly coupled thermoelastoplastic systems is presented. The Newton–Raphson iteration method used in solution process so that analytic sensitivity formulations may be efficiently derived via direct differentiation technique. are suitable finite element implementations. Analysis and analysis capabilities combined with numerical optimization to form an optimum algorithm. To demonstrate algorithm, we optimally a weldment respect manufacturing...
In recent years, violence has considerably increased in the world. a certain state of Brazil, for example, homicide rate grew from 16 homicides per 100,000 inhabitants 2000, to 48 2014. Police departments worldwide use various types crime maps, which are generated with diverse techniques, order analyze and fight crime. Those maps enable decision makers identify high-risk areas allocate resources more effectively. Hotspot particular, often available visual interactive systems analysis....
Control for physically based characters presents a challenging task because it requires not only the management of functional aspects that lead to successful completion desired task, but also resulting movement must be visually appealing and meet quality requirements application. Crafting controllers generate desirable behaviors is difficult specification final outcome indirect often at odds with control task. This paper method which exploits natural modal vibrations character in order...
Caricatures are models of persons or things in which certain striking characteristics exaggerated order to create a comic grotesque effect. This paper is concerned with strategy for automatically generating caricatures threedimensional based on anthropometric measures and geometric manipulations by influence zones. In the proposed strategy, from reference model serve as means comparison corresponding be caricatured. Deformations applied features that differ most model. method independent...
Computer simulation based interactive systems have proven to be risk-free alternatives for training the police force. Also, in these kinds of simulations, user can make errors without dangerous consequences, unlike real-world situations. In this sense, paper proposes a system model, aimed at shooting training, using features video sequences and three-dimensional computer graphics environments. This proposal is initially on evaluation commercial that uses immersive virtual reality. Then, it...
Abstract Computer‐based technology has played a significant role in crime prevention over the past 30 years, especially with popularization of spatial databases and mapping systems. Police departments frequently use hotspot analysis to identify regions that should be priority receiving preventive resources. Practitioners researchers agree tracking time identifying its geographic patterns are vital information for planning efficiently. Frequently, police have access systems too complicated...
Abstract An adjoint variable method for design sensitivity analysis of non‐linear elastic systems is presented. The uses domain parameterization and a mutual form the Hu‐Washizu energy principle, extends results reported in recent work linear to elasticity. Non‐linearities due finite deformations non‐linear, hyperelastic constitutive models are considered. In contrast other methods analysis, present formulation can be applied with force, displacement or mixed approximate solution methods....
Nowadays, applications of virtual reality (VR) and computer games use human characters models with ever-increasing sophistication. Additional challenges are posed by applications, such as life-simulation (The Sims, Spore, etc.), internet-based worlds (Second Life) animation movies, that require simulation kinship interaction between isolated populations well defined ethnic characteristics. The main difficulty in those situations is to generate automatically, which physically similar a given...
Urbanization is accelerating worldwide, giving rise to serious traffic problems. Traffic wave, known as stop-and go or phantom intersection, one of the most significant oscillation patterns studied in Engineering. Usually these studies are numerical experiments that investigate specific places, such a crossroad highway section, and their findings cannot, therefore, be easily applied sensing device data systematic computational approach. In this regard, visual analytics can help by combining...
We have developed an emotional agent based on reinforcement learning. The is a virtual character who lives in three-dimensional maze world. Thus, we found that engine can induce the behavior of after training. training algorithm was policy Experiments showed and learning produced coherent behaviors. This important step towards believable autonomous characters.
This paper addresses the problem of generating natural behavior autonomous virtual characters. Inspired by fields Embodied and Enactive Artificial Intelligence, we postulate that is result a coupling between agent world where it lives, which leads to coherence its actions surroundings. In this work, present tools have been using study idea: controller based on plastic neuromodulated neural network, capable molding itself received stimuli; simple novel method for genetic encoding artificial...