closed captioning 隐藏字幕
image captioning 图像描述
automatic captioning 自动字幕
video captioning 视频字幕
A: Is there any captioning available for this video?
A：这个视频有字幕吗？
B: Yes, you can turn on the closed captioning in the settings.
B：是的，你可以在设置中开启隐藏字幕。
1) 为多媒体内容添加文字描述
2) 图像识别中的描述生成技术
3) 视频辅助功能
1. 为（视频、图像等）添加说明或字幕
noun
1. The act or process of providing text descriptions or subtitles for media content.
Synonym: subtitling