Closed caption production device, method and program for synthesizing video, sound and text

摘要

In a closed caption production device, video recognition processing of an input video signal is performed by a video recognizer. This causes a working object in video to be recognized. In addition, a sound recognizer performs sound recognition processing of an input sound signal. This causes a position of a sound source to be estimated. A controller performs linking processing by comparing information of the working object recognized by the video recognition processing with positional information of the sound source estimated by the sound recognition processing. This causes a position of a closed caption produced based on the sound signal to be set in the vicinity of the working object in the video.