Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
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- Collision Detection(also: Contact Detection, Intersection Testing)
- In virtual reality and haptic systems, collision detection is the computational process of determining when virtual objects come into contact with each other or with a user's virtual representation (such as a virtual hand or cane). When a collision is detected, the system can…
- Context-Free Grammar(also: CFG, Formal Grammar)
- A formal system for defining the syntactic rules of a language, consisting of a set of production rules that describe how symbols can be combined to form valid expressions. In accessibility and assistive technology, context-free grammars are significant because they can be used…
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