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数据驱动的人群场景动画合成方法 被引量:4
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作者 王鑫 孙守迁 +1 位作者 侯易 邓春燕 《计算机辅助设计与图形学学报》 EI CSCD 北大核心 2009年第2期250-256,共7页
为了向虚拟城区环境加入复杂而灵活的人群动画,提出一种数据驱动的人群场景动画合成方法.通过采集各种典型场景下人群流动的视频,提取出agent状态响应数据集;并将这些状态响应数据集嵌入到虚拟城区知识模型中.最后基于该虚拟城区知识模... 为了向虚拟城区环境加入复杂而灵活的人群动画,提出一种数据驱动的人群场景动画合成方法.通过采集各种典型场景下人群流动的视频,提取出agent状态响应数据集;并将这些状态响应数据集嵌入到虚拟城区知识模型中.最后基于该虚拟城区知识模型实现了一个虚拟城区中人群流动场景的动画合成系统. 展开更多
关键词 群体仿真 行为动画 城区仿真 视频跟踪
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Simulation Analysis on Spatial Pattern of Urban Population in Shenyang City,China in Late 20th Century 被引量:5
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作者 QIN Zhiqin ZHANG Pingyu 《Chinese Geographical Science》 SCIE CSCD 2011年第1期110-118,共9页
The spatial distribution of urban population can reflect significantly urban functions and development status. Shenyang, as a typical old industrial city in China, has experienced considerable changes in spatial distr... The spatial distribution of urban population can reflect significantly urban functions and development status. Shenyang, as a typical old industrial city in China, has experienced considerable changes in spatial distribution of population in the process of urban transformation, resulting in the change of urban spatial structure. Based on the sub-district data of Chinese national population censuses in 1982, 1990 and 2000, this study simulates the evolution pattern of spatial distribution of urban population in Shenyang City. Using statistical method and exploratory spatial data analysis (ESDA), we found that the population distribution, on the whole, has presented a balanced and decentralized trend since the 1980s, which characterizes with Chinese suburbanization. Furthermore, based on the investigation of the pattern of population distribution, it is concluded that the negative exponential model fitted the distribution best, and population concentration in the inner suburb kept increasing gradually, meanwhile, the spatial structure of population distribution has presented a polycentric feature since the 1980s. The parameters of the model show that population in the urban core concentrate significantly all the time. The increase of population in the inner suburb influences the population distribution pattern more and more importantly, but the concentration intensity of population cores in inner suburb is still low. 展开更多
关键词 population distribution urban spatial structure simulation analysis Shenyang City
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