Some functions of vision potential goals for sensory substitution

- access to text (e.g., books, recipes, assembly instructions, etc.)

- access to static graphs/pictures

- access to dynamic graphs/pictures (e.g., animations, scientific visualization)

- access to environmental information (e.g., business establishments and their locations)

- obstacle avoidance

- navigation to remote locations

- controlling dynamic events in 3-D (e.g., driving, sports)

- access to social signals (e.g., facial expressions, eye gaze, body gestures)

- visual aesthetics (e.g., sunset, beauty of a face, visual art)

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