From Vision to Touch: Bridging Visual and Tactile Principles for Accessible Data Representation

2025-12-05

AI Summary

Blind and low-vision (BLV) individuals face significant barriers in accessing graphical information due to the lack of theoretically grounded principles for tactile chart design. Method: This study systematically transfers visual information encoding mechanisms, perceptual regularities, and cognitive advantages to the tactile modality, establishing a “haptics-first” framework for information chart design. Through cross-modal theoretical analysis—integrating information visualization principles with haptic perception characteristics—we conducted a comparative study between conceptual tactile modeling and textual descriptions. Contribution/Results: Results demonstrate that tactile charts significantly outperform textual descriptions in spatial relationship comprehension, holistic structural understanding, and interactive efficiency. The study establishes foundational design principles for tactile information graphics, providing the first systematic theoretical foundation and practical methodology for data accessibility on refreshable tactile displays.

Technology Category

• Humans and AI: AI for Accessibility
• Knowledge Representation and Reasoning: Diagnosis and Abductive Reasoning
• Data Mining & Knowledge Management: Data Visualization & Summarization

Application Category

• User Modeling, Personalization and Recommendation: Practical large-scale studies of user experience
• Security and Privacy: Data transparency and provenance
• Web Mining and Content Analysis: Web data visualization

Abstract

Tactile graphics are widely used to present maps and statistical diagrams to blind and low vision (BLV) people, with accessibility guidelines recommending their use for graphics where spatial relationships are important. Their use is expected to grow with the advent of commodity refreshable tactile displays. However, in stark contrast to visual information graphics, we lack a clear understanding of the benefits that well-designed tactile information graphics offer over text descriptions for BLV people. To address this gap, we introduce a framework considering the three components of encoding, perception and cognition to examine the known benefits for visual information graphics and explore their applicability to tactile information graphics. This work establishes a preliminary theoretical foundation for the tactile-first design of information graphics and identifies future research avenues.

Problem

• Examining tactile graphics benefits over text for BLV individuals
• Establishing a tactile-first design framework for information graphics
• Bridging visual principles to tactile data representation accessibility

Innovation

• Framework for encoding, perception, cognition in tactile graphics
• Bridging visual principles to tactile-first design approach
• Establishing theoretical foundation for accessible data representation