Huishu DENG, Heritage, Anthropology and Technologies (HAT), College of Humanities, EPFL
The photos taken by visitors to the site, defined as user-generated photos, have been used as a direct medium to study how the general public perceives and attaches to a particular place, as the action of taking a photo is triggered not only by the immediate environment, but also by many aspects of place attachment: attention, perceptions, preferences, memories, opinions, etc. (Tieskens et al., 2018). The anthropologist John Collier was the first to use photography as a tool to study human perception (Collier&Collier 1986). Since then, handing out cameras to participants or self-directed photography (Dakin 2003; Markwell 2000) have become widely accepted techniques for assessing perceived/preferred public space. In recent years, the proliferation of photo-sharing on social media such as WeChat and Weibo has opened up the possibility of collecting large numbers of user-generated photos. It is also a way to engage a wider range of visitors over a longer period. Moreover, with the application of advanced computer vision technologies, such as automatic image classification and visual content recognition, it is possible to extract and analyze information from thousands of photos (Vu et al. 2018; Zhang et al. 2020).
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