Automated closed-captioning using text alignment

The production of closed captions is an important but expensive process in video broadcasting. We propose a method to generate highly accurate off-line captions efficiently. Our system uses text alignment to synchronize program transcripts obtained for a video program with text produced by an automatic speech recognition (ASR) system. We will also describe the accuracy in both closed-caption text and the ASR output for a number of news programs and provide a detailed analysis of the errors that occur.

• Type: Conference
• Year: 2004
• Where: SPIESR
• Authors: Anthony F. Martone, Cüneyt M. Taskiran, Edward J. Delp
• Keywords: Accurate Off-line Captions, Automatic Speech Recognition, Closed Captions, Database, SPIESR 2004