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Data Hiding in MP4 Video Container based on Subtitle Track

机译:基于字幕轨道的MP4视频容器中的数据隐藏

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This paper proposes a data hiding method in MP4 container format. Specifically, the synchronization between subtitle and audio-video tracks is exploited to hide data. The time scale is first scaled, and the sample duration pair is modified to hide data. The proposed method is able to hide data reversibly when the payload size is relative small, and it switches to the irreversible mode to offer higher payload. Although synchronization between audio-video and subtitle tracks are manipulated, the delay or ahead in displaying subtitle is imperceptible. The filesize of the processed MP4 file is also completely preserved. Subjective evaluations are carried out to verify the basic performance of the proposed method.
机译:本文提出了一种MP4容器格式的数据隐藏方法。具体地说,字幕和音视频轨道之间的同步被用来隐藏数据。首先缩放时间刻度,然后修改采样持续时间对以隐藏数据。所提出的方法能够在有效载荷大小较小时可逆地隐藏数据,并切换到不可逆模式以提供更高的有效载荷。尽管操纵了音频视频和字幕轨道之间的同步,但是看不到字幕显示的延迟或超前。处理过的MP4文件的文件大小也被完全保留。进行主观评估以验证所提出方法的基本性能。

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