As for contour tracking, a contour tracking method based on characteristic code and retrospecting mechanism is present, which can track cell edge with short branch, so as to enhance its robustness.

在细胞轮廓提取方面，提出了一种基于特征编码和回溯机制的轮廓跟踪算法，能够正确跟踪具有短枝干扰的细胞边界，增强了细胞提取的可靠性。

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The directional chain code is used to record the contour information data according to the trend of the contour, and this will be very convenient for the smoothing process later on.

采用方向链码记录轮廓信息，它依据轮廓走向的顺序来记录数据，这对以后的光顺处理工作将是十分方便的。

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Firstly, using the contour tracing algorithm to trace the manipulated contour BMP, it has attained the contour point chain recorded by chain Code.

首先，运用轮廓追踪算法追踪经过图象处理后的轮廓位图，形成链符法记录的轮廓点列数据。

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