A new particle size measurement technique based on the binocular vision and the particle image gray difference was suggested and a corresponding inquiry system was developed.

提出了一种新的基于双目视觉和灰度差分的粒径测量方法，并开发了相应的查询系统。

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By using image difference and gray stretch technique, image histogram analysis method was used to investigate the movement of particles in image sequence.

利用差分法配合灰度拉伸对颗粒运动图像进行了处理 ，直方图分析表明 ，像素在灰度上的分布特性与颗粒运动的剧烈程度具有相关性。

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