A Study on Understanding Pedestrian Flow Using Intermittent Recording Images (PIRI)

作者：Takayanagi Hideaki^*; Yamada Shogo; Shibahara Hiroko

来源：Journal of Asian Architecture and Building Engineering, 2015, 14(3): 557-560.

DOI：10.3130/jaabe.14.557

• pedestrian flow
• visualization
• fixed-point observation
• image recognition
• pedestrian

Pedestrian flow information has been used as the basic data for urban facility planning and architecture. Pedestrian information surveys require significant time and money. Therefore, this study assesses pedestrian flow using intermittent recording images (defined as "PIRIs" in this paper).
A PIRI makes it possible to visualize the state of pedestrian flow and is developed as follows:
1) Pictures of pedestrian flow are taken from a stable viewpoint.
2) These continuous pictures are imported into an analyzing platform (some type of a PC).
3) The offset of these images caused by camera movement is adjusted to the correct position. This process can be executed automatically.
In this study, the optimal shutter interval was defined as t = 1 s, and the number of images processed is defined as Tmax = 20 [frame]. Using these parameters, PIRI can be applied with "time-space interfering model*(1).

• 出版日期2015-9