连通分量扩展
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Connected component expansion
以上为机器翻译结果，长、整句建议使用 人工翻译 。
以自适应门限值提取前景区域，通过扩展的连通分量提取算法实现了目标的快速搜索，最后几何特征对目标加以识别。
Foreground area is extracted by adaptive threshold method, the object is searched by extending the connected components extraction method, the object is recognized based on the geometrical character.
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