Urban environment is closely related to people's behaviors.ombining with advanced computer technology of visualization, the potential of wearable devices in studying environmental exposure and psychological perceptions have been constantly explored. Taking one individual participant as an example,this paper will apply computer science in studying personal spatial behaviors and evaluating personal spatial exposure of greenness through analyzing personal image database collected by wearable camera (Narrative Clip2).In order to identify and analyze database automatically, calling Microsoft Cognition service API, Matlab analysis and manual audit will be used to process images and identify greenery, then evaluate the condition of personal exposure.