To detect the possible foreign and particulate matter in pharmaceutical liquor online

a novel particles detection hardware system and image recognition algorithm are developed.According to characteristics of particles in infusion

a programmable control of the image acquisition system aimed to acquire high quality image sequences is designed.Some algorithms

such as image pre-processing

feature extraction

target identification

is carried out to achieve online detection of foreign particles.Experimental results show that the system can effective detects foreign particles whose sizes are bigger than 50 μm in liquor.Its recognition accuracy and detection speed is higher than skilled workers.