“…People can use hand-drawn sketches for travel addressing or path analysis to meet some of their daily needs (Rovine and Weisman, 1989;Son, 2005;Tu Huynh and Sean, 2007). As a graphical interaction method that vaguely approximates the user's intention, hand-drawn sketching has the characteristics of intuitive and natural information input, and has been widely used in computer-aided design, virtual reality, visualization, artificial intelligence and other fields, and the relevant research focuses on the research of recognition technology of hand-drawn sketches (Schwering et al, 2014;Jan et al, 2015;Chipofya, 2016;Jan et al, 2017;Ali and Shahbazi, 2020).…”