1. Ph.D. Student, Information Processing and Intelligent Transportation System Laboratory, Dept. of Information and Communication Engineering, College of Electronic and Information Engineering, Tongji Univ., Shanghai 201804, China.
2. Assistant Professor, Information Processing and Intelligent Transportation System Laboratory, Dept. of Information and Communication Engineering, College of Electronic and Information Engineering, Tongji Univ., Shanghai 201804, China.
3. Master’s Student, Information Processing and Intelligent Transportation System Laboratory, Dept. of Information and Communication Engineering, College of Electronic and Information Engineering, Tongji Univ., Shanghai 201804, China.
4. Associate Professor, Information Processing and Intelligent Transportation System Laboratory, Dept. of Information and Communication Engineering, College of Electronic and Information Engineering, Tongji Univ., Shanghai 201804, China (corresponding author).