基于室内场景的盲人轨迹与导航研究

Research on Trajectory and Navigation for Blind People Based on Indoor Scenes

摘要: 在世界范围内，室内盲人导航辅助领域越来越突出。本文分两个阶段对室内盲人轨迹与指令导航进行了全面的研究。首先，在室内盲人轨迹的数据分析阶段，本文分析了轨迹与指令之间的关系。其次，为了研究指令与盲人行为之间的关系，本文提出了盲人对指令的遵从度与敏感度的概念。同时，本文提出了路径分离度指标，该指标能够直观地反映出盲人的实际路径与计划路径的误差。结果表明，不同指令对盲人行为影响不同，在保证室内盲人正常行走的情况下，适当降低道路宽度有助于稳定盲人行走状态。

Abstract: The field of indoor navigation aids for the blind is becoming increasingly prominent worldwide. In this paper, a comprehensive study of indoor trajectory and command navigation for the blind is conducted in two phases. First, in the data analysis phase of indoor trajectories for the blind, this work analyzes the relationship between trajectories and commands. Second, in order to investigate the relationship between commands and blind people’s behavior, this work proposes the concept of blind people’s compliance and sensitivity to commands. At the same time, this work proposes the path separation index, which can visually reflect the error between the actual path and the planned path of blind people indoors. The results show that different instructions have different effects on the behavior of blind people, and that an appropriate reduction of the road width helps stabilize the walking state of blind people while ensuring normal walking indoors.