AngleSizer: Enhancing Spatial Scale Perception for the Visually Impaired with an Interactive Smartphone Assistant
Xiaoqing Jing, Chun Yu, Kun Yue, Liangyou Lu, Nan Gao, Weinan Shi,, Mingshan Zhang, Ruolin Wang, Yuanchun Shi

TL;DR
AngleSizer is a smartphone-based interactive tool that significantly improves spatial perception for the visually impaired through natural gestures, feedback, and tailored learning modules, enabling cost-effective and independent learning.
Contribution
We introduce AngleSizer, a novel smartphone assistant that enhances spatial perception for the visually impaired using interactive gestures and multisensory feedback, addressing key barriers in traditional learning methods.
Findings
Validated effectiveness through extensive user experiments
Improved spatial perception and independent learning capabilities
Applicable across diverse abilities and visual conditions
Abstract
Spatial perception, particularly at small and medium scales, is an essential human sense but poses a significant challenge for the blind and visually impaired (BVI). Traditional learning methods for BVI individuals are often constrained by the limited availability of suitable learning environments and high associated costs. To tackle these barriers, we conducted comprehensive studies to delve into the real-world challenges faced by the BVI community. We have identified several key factors hindering their spatial perception, including the high social cost of seeking assistance, inefficient methods of information intake, cognitive and behavioral disconnects, and a lack of opportunities for hands-on exploration. As a result, we developed AngleSizer, an innovative teaching assistant that leverages smartphone technology. AngleSizer is designed to enable BVI individuals to use natural…
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