Optical field optimization of liquid detection systems using machine vision
Wei LI,Boxiong WANG(),Chunyu YANG,Jiannan LIU
State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instruments and Mechanology, Tsinghua University, Beijing 100084, China
Machine vision systems are used to analyze bottled liquid medicines. The systems detect light reflected from impurity particles in the liquid with the detection ability directly affecting the system impurity detection rate. The system is optimized here to improve the system liquid detection rate. The regularity of the optical field distribution is obtained using the light integral method and the refraction law. Then, the light distribution is decomposed into a superposition of two basic fields with the distribution optimized using the mean square error of the superposition matrix of the matrixes for the two fields. Tests show that this optimization method effectively optimizes the light distribution and improves the impurity detection rate by 26%.
李伟,王伯雄,杨春毓,柳建楠. 基于机器视觉的药液检测系统的光辐射场优化方法[J]. 清华大学学报（自然科学版）, 2014, 54(6): 787-793.
Wei LI,Boxiong WANG,Chunyu YANG,Jiannan LIU. Optical field optimization of liquid detection systems using machine vision. Journal of Tsinghua University(Science and Technology), 2014, 54(6): 787-793.
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2014, Vol. 54 
),杨春毓,柳建楠
