Glossary
Terms used in accessibility research and practice. Each entry has a definition, common aliases, and category tags.
Search results
- CEA-708(also: CTA-708, EIA-708, Digital Closed Captioning)
- A US standard for digital closed captioning on digital television broadcasts and streaming, superseding the analog-era CEA-608 standard. CEA-708 supports richer presentation than its predecessor, including multiple fonts, colours, opacity, text positioning, and up to 63 caption…
- Caption Quality(also: Subtitle Quality)
- The overall fitness of a set of captions or subtitles for their intended accessibility purpose. Quality is multi-dimensional: it includes text accuracy (whether spoken words are correctly transcribed, commonly measured by Word Error Rate or the NER model), synchronicity with the…
- Chroma Key(also: Green Screen, Blue Screen, Chroma Keying)
- A video-post-production technique in which a solid, uniformly coloured background (often green or blue) is replaced with another image, video, or transparency using colour-matching software. In accessibility work, chroma key is most often encountered in the production of…
- Closed Interpreting(also: Closed Sign Language Interpreting)
- A proposed accessibility feature for video content where a sign language interpreter video can be toggled on or off and displayed alongside the main video, analogous to closed captions for text. Unlike embedded "open" interpreters that are permanently part of the video, closed…
- Crowdsourced Captioning(also: Crowd Captioning, Collaborative Captioning)
- Crowdsourced captioning is an approach to creating video captions or subtitles by distributing the work across multiple contributors rather than relying on a single professional captionist. This method can leverage diverse workers with varying language skills, hearing abilities,…
5 results.