同时，得出了一种新的视觉特征提取算法。

In the meantime, a new visual feature extraction algorithm is derived.

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参考MPEG - 7标准，研究了视频视觉特征提取方法。

Reference to MPEG-7 standards, mainly researches feature extracting schemes of video visual information.

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因而，一开始即简要介绍了图像分割算法以及基本的图像视觉特征提取方法。

Thus, image segmentation algorithm and image visual feature extraction method are briefly introduced at the beginning of this paper.

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