| 基于光流法的不良视频检测算法 |
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| 引用本文： | 吕 丽,杨树堂,陆松年,李建华. 基于光流法的不良视频检测算法[J]. 计算机工程, 2007, 33(12): 220-221, |
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| 作者姓名： | 吕 丽 杨树堂 陆松年 李建华 |
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| 作者单位： | [1]中国矿业大学北京资源与安全工程学院,北京100083 [2]西安科技大学测量工程系,西安710054 [3]中国科学院沈阳应用生态研究所,沈阳110016 |
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| 摘 要： | 针对用E-R模型建立空间数据库概念模型存在的不足之处,将本体论的思想和方法引入到地理信息领域.讨论了地理本体的意义及其表达语言.阐述了空间E-R模型的特点,分析了地理本体和空间E-R模型之间的关系.提出了以地理本体为语义基础设计空间ER模型的思想,并用扩展OWL表示的灌溉本体为例,介绍了从地理本体出发,设计空间E-R模型来建立空间数据库概念模型的方法.
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| 关 键 词： | 地理本体 空间E-R模型 OWL 空间数据库 地理本体 空间数据库 概念建模 Ontology Geographic Based Spatial Database Modeling 灌溉 扩展 设计空间 语义基础 关系 分析 阐述 语言 表达 意义 信息领域 方法 |
| 文章编号： | 1000-3428（2007）12-0087-03 |
| 修稿时间： | 2006-06-29 |
Objectionable Videos Detection Algorithm Based on Optical Flow |
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| SU Li,ZHU Qingwei,CHEN Yijin,ZHOU Danhui. Objectionable Videos Detection Algorithm Based on Optical Flow[J]. Computer Engineering, 2007, 33(12): 220-221, |
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| Authors: | SU Li ZHU Qingwei CHEN Yijin ZHOU Danhui |
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| Affiliation: | (School of Information Security Engineering, Shanghai Jiaotong University, Shanghai 200240) |
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| Abstract: | Aiming at deficiency of building conceptual model of spatial database with E-R model, the ontological ideology and methodology are introduced into the geographic information domain. The exact meaning and its formal represented language of geographic ontology are discussed. Characteristics of spatial E-R model are clarified and relationship between geographic ontology and spatial E-R model is analyzed. The thinking of designing spatial E-R model based on geographic ontology as semantic foundation is presented. And a method of establishing conceptual model of spatial database by designing spatial E-R model from geographic ontology is introduced with an example about irrigation ontology represented by expanded OWL. |
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| Keywords: | Geographic ontology Spatial E-R model OWL Spatial database |
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