Key Laboratory of Intelligent Computing and Information Processing;
Ministry of Education;
College of Information Engineering;
Xiangtan University;
Xiangtan;
411105;
China;
National Computer Network Emergency Response Technical Team/Coordination Center of China;
Beijing;
100029;
China;
Department of Computer Science;
the University of Georgia;
Athens;
Georgia;
USA;
Contextual information transmission; illegal parking detection; spatial attention mechanism; deep learning;