Based on introduction of the feature matching value matrix, an applied simple logic object tracking state judgement was devised.

在引入特征匹配值矩阵的基础上，设计了一种简单实用的目标跟踪状态判决逻辑。

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This paper takes design and realization for feature extraction based vehicle tracking method as subject to do further research.

本文就基于特征提取的车辆跟踪方法的设计和实现进行了深入的研究。

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According to the feature of ear and its position on the side face a method based on edge-tracking was adopted for human ear localization and extraction from side face images.

根据外耳及其所在位置的特征，提出了一种从侧脸图像上准确定位并提取出人耳的新方法。

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