Abstract
Tactile perception enables people with visual impairments (PVI) to engage with artworks and real-life objects at a deeper abstraction level. The development of tactile and multi-sensory assistive technologies has expanded their opportunities to appreciate visual arts. We have developed a tactile interface based on the proposed concept design under considerations of PVI tactile actuation, color perception, and learnability. The proposed interface automatically translates reference colors into spatial tactile patterns. A range of achromatic colors and six prominent basic colors with three levels of chroma and values are considered for the cross-modular association. In addition, an analog tactile color watch design has been proposed. This scheme enables PVI to explore artwork or real-life object color by identifying the reference colors through a color sensor and translating them to the tactile interface. The color identification tests using this scheme on the developed prototype exhibit good recognition accuracy. The workload assessment and usability evaluation for PVI demonstrate promising results. This suggest that the proposed scheme is appropriate for tactile color exploration.
Highlights
People with visual impairments (PVI) can form concepts regarding real-world object properties, including abstract conceptualization and relative differences between colors [1–3]
We propose a tool for people with visual impairment that can intuitively recognize and understand the three elements of color, that is, color hue, lightness, and saturation, taking advantage of the timepiece watch design
We propose the design of ColorWatch, which is a wearable wrist-worn analog tactile device for people with visual impairments (PVI)
Summary
People with visual impairments (PVI) can form concepts regarding real-world object properties, including abstract conceptualization and relative differences between colors [1–3]. Preferences, terminology, and other daily life concepts associate with colors by engaging psychological and aesthetic stimuli. These color associations serve a significant role in culture, faith, art, commercial branding, and everyday lifestyle. Color recognition through non-visual stimuli has been an active research area for PVI [5]. The color-sound cross modular associations convey visual color information through auditory senses. These associations code color characteristics of hue, chroma, and value through a combination of music instrument, music tone, pitch variations, etc
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