本文提出一种基于时空变化信息的视频内容检索方法。
A video content retrieval method based on spatiotemporal change information is presented in this paper.
这种协作化的空间不仅可以保存邮件会话，还可以保存图片、视频、音频文件等邮件线程中能够检索的内容。
The collaborative workspaces are populated with the email conversations themselves as well as images, videos, audio files, and more all retrieved from within the email thread.
文字信息在描述图象内容时起着重要的作用，因此文字提取及识别是基于内容视频检索的关键技术。
Text extraction is a key technique in content-based video retrieval as textual information plays an important role in describing the content of image.
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