1. Shandong Key Laboratory of Medical Physics and Image Processing, School of Physics and Electronics, Shandong Normal University, Jinan, China
2. School of Control Science and Engineering and the Shandong Provincial Key Laboratory of Wireless Communication Technologies, Shandong University, Jinan, China
3. Second Research Department, Shandong Yunhai Guochuang Cloud Computing Equipment Industry Innovation Company Ltd., Jinan, China