Fig. 3From: A Smart Service System for Spatial Intelligence and Onboard Navigation for Individuals with Visual Impairment (VIS4ION Thailand): study protocol of a randomized controlled trial of visually impaired students at the Ratchasuda College, ThailandOverview of a stereotypical route that may be navigated by a VI end user in Bangkok, using VIS4ION with expanded location microservicesBack to article page