计算机工程与应用 ›› 2012, Vol. 48 ›› Issue (26): 152-156.

• 图形、图像、模式识别 • 上一篇    下一篇

基于机器视觉的口服液灯检机关键技术研究

余腊生,李丽浓,刘仁杰,邹北骥   

  1. 中南大学 信息科学与工程学院,长沙 410083
  • 出版日期:2012-09-11 发布日期:2012-09-21

Research on key technology of liquid lamp inspector based on machine-
vision

YU Lasheng, LI Linong, LIU Renjie, ZOU Beiji   

  1. School of Information Science and Engineering, Central South University, Changsha 410083, China
  • Online:2012-09-11 Published:2012-09-21

摘要: 设计了一种基于机器视觉的口服液异物检测算法,实现口服液中异物的检测。通过高速工业摄像机获取序列图像,利用二次差分与累积差分法对序列图像进行处理,去除图像中的背景信息,得到只含杂质、少量气泡和部分噪声的灰度图像。通过自适应阈值处理提取运动目标。通过比较异物的大小是否超过医药标准来判断药剂中是否含有异物(比如:毛发、短纤维等),来实现对口服液中可见异物的实时检测。通过实验与现场测试,验证了该检测算法的有效性和可行性。

关键词: 机器视觉, 口服液, 实时检测, 差分与累积, 自适应阈值处理

Abstract: In this paper, an automatic oral liquid light inspection algorithm is designed to implement the detection of particles in oral liquid. Second-difference and accumulate difference methods are used to remove the background information from the sequence images captured by a high-speed industry camera, and the target images with particles, air bubble and random noise are acquired. Adaptive threshold processing is used to extract moving targets. Real-time detection is completed by determining whether the size of particles, such as hair, fibers and so on, is larger than the pharmaceutical standards. A large number of experimental results show that the proposed algorithm is effective and feasible.

Key words: machine vision, oral liquid, real-time detection, difference and energy accumulation, adaptive threshold processing