中药口服液瓶可见异物移动检测系统研究

Study on Detection System of Foreign Substances Movement in Traditional Chinese Medicine

摘要:

针对中药口服液中可见异物的检测为静态的自旋急停检测这一问题,提出了一种基于机器视觉的针对流水线上直线运动中的中药口服液瓶中可见异物的移动检查方法;此法为将停止不动的口服液瓶的自旋急停拍照检测,变为在药瓶水平方向运动的同时完成竖直方向上的自旋急停拍照检测;克服了连续拍摄图片中药瓶位置发生变化从而需要寻找药液区域的问题;基于改进的成像系统和机械系统,使待检测药瓶在边自旋急停边直线运动时完成杂质检测;检测基于改进的区域搜索方法,提出了先利用连续像素搜寻算法药液区域提高检测速度,再用前后三角形窗口算法判定药液区域提高检测精度,能快速抓取照片中位置发生变化的药液区域并利用差分法进行杂质检测;实验结果表明此算法可以快速有效地检测出异物,提高了检测速度。

Abstract:

Aiming at the problem that the detection of foreign Substances in the oral liquid of traditional Chinese medicine is static, this paper proposes a mobile inspection method based on machine vision for visible foreign Substances in traditional Chinese medicine oral liquid bottles. This method is to change the static immobile oral liquid bottle of the emergency stop camera detection, into the bottle in the horizontal direction of movement at the same time to complete the vertical direction of the spin emergency stop camera detection. To overcome the problem that continuous shooting picture of the bottle position changes to find the drug area . Based on the improved imaging system and the mechanical system, the test bottle is tested for impurity detection when the bottle is to be moved linearly in the side of the spin. Based on the improved region search method, it is proposed to improve the detection speed by using the continuous pixel search algorithm, and then use the front and rear triangular window algorithm to determine the detection area of the drug solution area to improve the detection precision, And the difference method is used for impurity detection. Experimental results show that this method can quickly and effectively detect foreign Substances, to improve the detection’s speed.