Video-recording/reproducing apparatus and video-recording/reproducing method

摘要

A video-recording/reproducing apparatus and a video-recording/reproducing method making it possible to grasp the outline of a content in a frame using caption data are provided. A storage unit for storing content data containing video data and caption data correlated with each other by time information, a caption string acquisition unit for acquiring a caption string contained in the caption data, a time acquisition unit for acquiring time information corresponding to the caption string, a video acquisition unit for acquiring sequentially video information, from the video data, corresponding to the time information of the caption string acquired by the time acquisition unit, and a display control unit for displaying by thumbnails the video information acquired by the video acquisition unit in time series in a frame on a display unit are included.

主权项

1. A video-recording/reproducing apparatus, comprising:
a storage unit for storing content data containing video data and caption data correlated with each other by time information and for storing metadata relating to and provided separately from the content data; a caption string acquisition unit for acquiring a caption string contained in said caption data; a metadata string acquisition unit for acquiring a metadata string from the metadata, wherein said caption string acquisition unit acquires said caption string based on a similarity to at least a part of said metadata string; a time acquisition unit for acquiring time information corresponding to said caption string; a video acquisition unit for acquiring sequentially video information, from said video data, corresponding to said time information of said caption string acquired by said time acquisition unit; a display control unit for displaying by thumbnails said video information acquired by said video acquisition unit in time series in a frame on a display unit; and a similarity calculation unit for calculating similarity between said caption string acquired by said caption string acquisition unit and said metadata string acquired by said metadata string acquisition unit, wherein said time acquisition unit acquires display start time of said caption string acquired by said caption string acquisition unit where the similarity calculated by said similarity calculation unit exceeds a predetermined threshold.