摘要
随着混合现实技术的发展,虚实融合地图应运而生。现有的虚实融合地图广泛使用动态符号,但尚缺乏面向用户认知的动态符号可用性研究,符号参数的适应性也有待验证。本文以应急导航为应用情景,提出虚实融合的动态符号设计方法,采用眼动跟踪技术开展视觉认知试验,分别从符号的静止与运动模态,旋转、跳跃和缩放变化效果,变化速度分级参数3个层次探究动态符号配置的适宜策略。试验结果表明,动态符号可获得与静态符号相仿的认知效果;在符号动态旋转、跳跃和缩放3种变化方式中,缩放效果在信息处理和视觉搜索比较中表现较好;动态符号的变化分级中,选择2~4个等级较合适,随着分级数目的增加,人们识别、加工处理、记忆符号的难度显著增加。
With the development of mixed reality(MR),a new type of map,the virtual-real fusion map,has emerged.Dynamic symbols are widely used in the existing virtual-real fusion maps,but there is a lack of research on the usability of dynamic symbols for user cognition,and the adaptability of symbol parameters needs to be verified.Taking emergency navigation as the application scenario,this study proposes a virtual-real fusion dynamic symbol design method,and use eye tracking technology to carry out visual cognition experiments,respectively,to explore the appropriate strategies for dynamic symbol allocation from three levels of static and dynamic modes,rotation,jumping and scaling change effects,and motion speed gradations.The experimental results show that dynamic symbols has similar cognitive effects as static symbols;among the three change modes of symbols'dynamic rotation,jumping and scaling,the scaling effect performs better in information processing and visual search comparison;among the gradations of dynamic symbols,2~4 grades is more appropriate,and as the number of gradations increases,the difficulty of recognizing,processing and memorizing the symbols increases significantly.
作者
刘嵩雯
黄丽娜
LIU Songwen;HUANG Lina(School of Resource and Environmental Science,Wuhan University,Wuhan 430079,China;Key Laboratory of Digital Mapping and Land Information Application Engineering,Ministry of Natural Resources,Wuhan 430079,China;Hubei Luojia Laboratory,Wuhan 430079,China)
出处
《测绘学报》
北大核心
2025年第2期385-396,共12页
Acta Geodaetica et Cartographica Sinica
基金
国家自然科学基金(42171436)。
关键词
动态符号
虚实融合
应急导航
空间认知
dynamic symbol
virtual-real fusion
emergency navigation
spatial cognition
