%0 Journal Article %T Defects scattering imaging system of 20 inch PMTs' glass shell suitable for digital image processing %A Lu, Min %A Wang, Zhi le %A Wang, Hualin %A Zhao, Feng %A Liu, Jingqi %A Qian, Sen %A Zhu, Yao %J Proceedings of SPIE %V 10847 %P 108470C-108470C-10 %@ 0277-786X %D 2018-12-12 %I SPIE %~ DeepDyve