1. “Apparatus and method for detection defect of sewer pipe based on deep learning” 
Gisu Chung,  Eui chul Shin, Yang seob Kim
Korea - Registration No.10-2008973
2. “Apparatus and method for reducing number of channels in input images to compress deep neural networks” 
Cheesun Won,  Gisu Chung
Korea - Registration No.10-2120681