Serwis Infona wykorzystuje pliki cookies (ciasteczka). Są to wartości tekstowe, zapamiętywane przez przeglądarkę na urządzeniu użytkownika. Nasz serwis ma dostęp do tych wartości oraz wykorzystuje je do zapamiętania danych dotyczących użytkownika, takich jak np. ustawienia (typu widok ekranu, wybór języka interfejsu), zapamiętanie zalogowania. Korzystanie z serwisu Infona oznacza zgodę na zapis informacji i ich wykorzystanie dla celów korzytania z serwisu. Więcej informacji można znaleźć w Polityce prywatności oraz Regulaminie serwisu. Zamknięcie tego okienka potwierdza zapoznanie się z informacją o plikach cookies, akceptację polityki prywatności i regulaminu oraz sposobu wykorzystywania plików cookies w serwisie. Możesz zmienić ustawienia obsługi cookies w swojej przeglądarce.
At present, a person-specific 3D model generation technology has been an active research topic for scientists in the field of computer vision and computer graphics. The paper proposes a 3D modeling method based on single photograph, by analysis of individual difference like geometric features which present the shape and locations of facial components. An extension of the basic Active Appearance Model...
This paper uses Agent-based modeling and simulation to study collective violent events from the perspective of individual's risk perception, by abstracting individual's risk preference, emotion factor, risk level and other factors we analyze and explore the influence of each factors to collective violent events. Considerable simulations indicate that, individual's density risk preference determines...
This paper presents an agent-based collective model to study “non-organization and direct interest” collective events. The purpose of this model is to analyze the spread phenomenon emerging in this type of events and explain some important characters which affect the spread. The experimental results show that the degree of spread is influenced by some variables, and these variables also influence...
This paper uses Analytic Hierarchy Process(AHP) to analyze the probability of individual appearing acts of violence by the influence of different roles in the crowd of Mass Violence Event, obtaining the weight of influence of organization leaders, agitators, general participants and bystanders to individuals. This paper also introduces spatial heterogeneity to reflect different roles' influence decaying...
This paper introduces a new method for analyzing Mass Violence Events, and then we make use of Intelligent Artificial and Agent-Based System to deal with them. In the meanwhile, we describe and defy three kinds of agents (cops, activists and civilians), what comes next is that we apply these theories to model and simulate such events. The simulation results show that the behaviors of activists can...
Before city emergencies happen, one of the most important tasks is to develop contingency plans, and reasonable analysis of space evacuation vulnerability is an important part of contingency plans. Based on the analysis of evacuation vulnerability of emergency area, this article develops a critical evacuation cluster model, and searches for the critical cluster of evacuation area by heuristic searching...
To formulate a reasonable and effective urban seismic traffic evacuation plan, this paper applied modified equivalent length, analysis of the factors which influence the seismic evacuation process, using the improved equivalent length to instead of the actual road network, this paper put forward an improved seismic evacuation dynamic traffic assignment model which is based on CTM. Experimental results...
During any extreme event, especially the evacuation in crowded places. The keys to saving lives are orderly and efficient evacuations. We have improved the traditional particle swarm optimization. It can simulate non-adaptive crowd behavior in the crowd facilities during the emergency evacuation. We introduce the concept of the leader (trained staff) and the parameter of influence, and analyzed the...
This paper bases on the research of cellular automaton and Agent, proposing a Grid-Agent model. This model uses the grid as the basic unit, and the individual Agents in the grid implement their movement by judging the state of their own and the grid around to achieve the purpose of simulating the crowd behavior. This will overcome the insufficient of the cellular automaton by simulating the crowed...
This paper studied the regulation of mass event from the perspective of its individual, and proposed an agent-based mass event modeling. The individual behavior of aggregation, riots, fled in mass event was modeled. Then the model was applied to computer simulation for observing crowd behavior of all the individuals in the three states. By this, we can study the behavior rules of mass event.
During and after any extreme event of natural or man-made origin, the primary objectives are getting people out of harms way and to an safety area. The keys to saving lives are orderly and efficient evacuations. We have proposed a new model based on the traditional lattice gas automate, in our paper, it can simulate the human crowd behavior in the crowd facilities, such as shopping malls, stadiums,...
This paper puts forward a method based on Logistic regression of emergency evacuation traffic trip generation forecasting model. Based on analysis of Xiamen residents earthquake evacuation survey data, the software of applied statistic SPSS could establish emergency evacuation traffic trip generation forecasting model by Logistic regression. This model could predict the probability of all evacuation...
When city emergencies happen, one of the most important tasks of emergency rescue is to find the shortest path to the emergency in shortest time, scientific and rational path plays an important role in improving rescue efficiency. According to the needs of city emergency rescue and basing on the analysis of the classical algorithm for solving the shortest path problem (Dijkstra algorithm), this article...
On the basis of the characters of footprint shape, a toe shape description method based on geometric characteristic values of toe image is proposed. Corner detection is carried out on toe region, and the characteristic points which can describe the toe shape are confirmed by the edge of toe image. Through finding characteristic points whose distances to the center are stable and which can distinguish...
On the basis of the characters of footprint shape, a toe shape description method based on geometric characteristic values of toe image is proposed. Corner detection is carried out on toe region, and the characteristic points which can describe the toe shape are confirmed by the edge of toe image. Through finding characteristic points whose distances to the center are stable and which can distinguish...
A feature-level image fusion method based on segmentation region and neural networks is proposed in this paper. Firstly, the source images are segmented and merged into a set of common regions which are used for guiding the whole fusion process; then selecting the corresponding segmentation regions from the source images respectively and extracting features representing clarity in the two regions;...
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.