几何形状、灰度级、颜色，尤其是农产品表面的反射光谱特性，可以用于农业机器人识别操作对象。
The geometrical shape, gray level, color, and reflected spectrum especially of farm production, can be used for agricultural robots to recognize the operated objects.
针对组合形状零件几何尺寸测量中的关键问题—轮廓识别，提出了一种基于弧长的轮廓特征点提取的方法。
An approach to extract feature points on the boundary based on length of arc is proposed in view of the key problem of measuring composite-shape parts.
所谓特征识别便非自产品的实体模型动身自动识别出其外具无一订工程意义的几何形状――便特征，入而地出产品的特征模型。
The feature recognition is the process in which geometric form with a certain engineering significance is extracted automatically from solid model, and then feature model is produced.
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