Abstract
ARIB-TTML is a subtitle and caption standard for broadcasting systems in Japan. TTML profiles for Internet media subtitles and captions (IMSC) is a W3C recommendation. ARIB-TTML and IMSC are widely used in UHD satellite broadcasting in Japan and OTT operators; however, they have incompatible features and different description methods. These differences impede program exchange between broadband and broadcast. In this study, we propose a method for the interconversion of subtitles and captions described in ARIB-TTML and IMSC. We organized the features of each standard and proposed a conversion algorithm. The interconverted caption files were confirmed using a JavaScript-based caption renderer.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
