Firstly, a new surface detecting and tracing algorithm is proposed in this dissertation based the connectivity characteristics of the edge surface.

首先，本文基于连续边缘曲面的连通特性，提出了一个三维图像中阶梯型边缘曲面的检测与追踪算法。

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Firstly, a novel edge curve detecting and tracing algorithm is proposed in this dissertation based the connectivity characteristics of the edge curve in 2D images.

首先，本文基于连续边缘曲线的连通特性，提出了一个二维图像中阶梯型边缘曲线的检测与追踪算法。

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This paper proposes a blind sidewalk detecting and tracing algorithm based on the color information and lays emphasis on dealing with the change of illumination and the cast shadow.

本文提出了一种基于颜色信息的盲道区域识别与跟随算法，侧重于解决光照条件改变与有投射阴影的条件下导盲道的识别问题。

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