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为了提高智能手机上的数据图表的低视力可用性
IEEE transactions on visualization and computer graphics
|September 20, 2024
概括
由于放大,视力低下的用户在小屏幕上的数据图表面临挑战. 一种新方法将图表转化为交互工具,提高屏幕放大器用户的可用性.
科学领域:
- 人与计算机的交互
- 可访问性研究 研究可访问性
- 数据可视化 数据可视化
背景情况:
- 数据图表对于数据解释至关重要,但对于视力障碍者来说,它们对可访问性构成挑战.
- 现有的研究主要针对盲人屏幕阅读器用户的障碍,忽视视力低下的屏幕放大器用户.
- 视力低下的用户在移动设备上的数据图表中遇到困难,原因是放大引起的视觉上下文丢失.
研究的目的:
- 为了解决低视力屏幕放大器用户与数据图表互动所面临的被忽视的挑战.
- 开发和评估一种方法来将静态数据图转换为交互式可视化,在放大下保留上下文.
主要方法:
- 与视力低下的参与者进行了采访研究,以了解图表交互的挑战.
- 开发了一种方法,可以自动将非交互式图表转换为可个性化的交互式版本.
- 在一项可用性研究中评估了该方法,其中26名视力低下的参与者执行了与图表相关的任务.
主要成果:
- 与标准的屏幕放大和空间紧缩技术相比,开发的方法显著提高了视力差的参与者对图表的可用性.
- 参与者报告说,他们有更强的能力与数据点进行交互,并在放大后保持视觉上下文.
- 交互式图表转换方法在可用性研究中表现出卓越的性能.
结论:
- 拟议的方法有效地提高了低视力屏幕放大器用户的数据图的可访问性.
- 可个性化的交互图表可以减轻在较小屏幕上体验到的视觉上下文的损失.
- 进一步的研究应该探索适应性可视化技术,以改善数据图表可访问性,以改善各种视觉能力.
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