| 孟祥增,徐振国,刘瑞梅.基于内容结构的网络Flash动画检索方法[J].中国图书馆学报,2016,42(1):83~95 |
| A Method of Searching for Flash Movies on Internet Based on Component and Structure |
| 基于内容结构的网络Flash动画检索方法 |
| Received:July 30, 2015 Revised:September 11, 2015 |
| DOI：10.13530/j.cnki.jlis.161007 |
| Key words:Flash movie Content and structure Feature extracting Information retrieval |
| 中文关键词: Flash动画 内容结构 特征提取 信息检索 |
| 基金项目:本文系山东省科技发展计划项目“网络Flash的内容特征自动标注与搜索系统研究”(编号:2011GGX10112)的研究成果之一 |
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| Abstract: |
As a kind of multimedia loved by teenagers and children，flash movies are widely spread on the Internet and become an indispensible part of the online multimedia information resources. The research on searching flash movies on the Internet is a non negligible work. The classical keyword based method of searching flash movies can not meet the requirements of a user to search a flash movie with specific components or structures. In this paper，a new method of flash movie retrieval based on component and structure is proposed. A flash movie can be retrieved based on name，keyword，and/or type，number of scenes，number of components，number of dynamic effects，interaction，complex and main colors of scenes in the flash movie，etc. The scenes summary of the retrieved flash movie is presented in the retrieval result feedback. Compared with the existing methods，the proposed method is more effective for the search of flash movies with complicated components and structures，and meets the requirements of various kinds of users of searching for the specific contents of flash movies.
The component and structure features of a flash movie are described by the overall features，the features of logic scenes，visual scenes and components. The overall features include type，name，URL，page URL，file size，width，height，number of frames，keyword，interaction，number of logic scenes，number of visual scenes，summary of scenes. A logic scene in a flash movie is a sequence of frames that can be played continuously，which is used to complete an independent function in a flash movie. A visual scene of a flash movie is a sequence of continuous frames that look similar. The components of flash movie are graphics，images，texts，audios，videos，morphs，movie clips，buttons，etc. The structure of a flash movie is made of scenes and components. The summary of scenes in a flash movie is a Gif dynamic image which is composed of the middle frames of all visual scenes in the flash movie，and shows the main content of the flash movie. The features of logic scenes，visual scenes and components are the numbers，visual features and the numbers of dynamic effects. The component and structure features of a flash movie are extracted by analyzing the tags and their parameters in the SWF file of a flash movie.
The flash movie retrieval system based on component and structure consists of four functional modules，including network search，webpage analysis and flash movie download，component and structure feature extraction and retrieval. The flash movie retrieval program established 25 retrieval conditions which are divided into 6 basic retrieval conditions and 19 advanced retrieval conditions. Retrieval feedback results include the scenes summary of the flash movie and URL，web URL，etc. 2 108 websites （including 73 012 website channels） are selected and pages containing flash movies are searched. The 25 133 452 web pages are visited on breadth first search rule including 4 100 789 web pages which contain flash movies，and 539 828 independent flash movies are downloaded and processed to set up the index database. The flash movie retrieval experimental system based on component and structure has been realized. The system is reliable and the application result is good during the two years of trial operation.
The system has realized the retrieval of flash movies on the Internet based on component and structure. However，the number of indexed flash movies is not large enough and only the basic component and structure features are used to retrieve flash movies. The future research will focus on increasing the number of indexed flash movies on the Internet and more features will be used to retrieve flash movies，such as visual and auditory features，emotional features，artistic features，in order to increase the generality of the system. 5 figs. 4 tabs. 23 refs.
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| 中文摘要: |
| Flash动画作为一种喜闻乐见、深受青少年和儿童喜爱的多媒体形式在互联网中广泛传播，成为不可或缺的网络多媒体信息资源。基于内容结构特征检索网络Flash动画的方法，既可以利用Flash动画的名称、内嵌文本的关键词进行检索，又可以根据Flash动画的帧数、场景数、组成元素数、动态效果数，以及分类、文件大小、画面大小、交互性、画面复杂性、颜色主色调等特征检索互联网中的Flash动画，并在检索结果中为用户提供Flash动画的场景摘要Gif动态图像，提高了网络Flash动画搜索的效率和效果。图5。表4。参考文献23。 |
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