一种基于视频帧间冗余的空间数据隐藏方法

针对GIS空间数据量大的特点,提出一种基于视频帧间冗余的信息隐藏方法,利用视频对称差分技术分离出视频中的运动目标和静止背景,然后对运动目标进行提取,在对运动目标增加的插值帧中隐藏空间数据.该方法合理利用了视频帧间冗余,具有较大的隐藏容量,符合空间数据量较大的隐藏特点.实验证明,该方法具有较好的不可感知性,具有一定的抵抗隐写检测的能力.

Method of GIS Spatial Data Hiding Based on Video Object Coding

For the characteristics of large GIS Spatial Data, a method based on video content enco- ded information hiding is proposed using symmetric difference to isolate moving targets and stationary background in the video. It extracts moving targets, hides the GIS Spatial Data in the interpolated frame which is increased to describe the frame better. The proposed method reasonably uses the vid- eo interframe redundancy and has considerable capacity, which is according with the characteristics of large GIS Spatial Data. Results show that the proposed method has good imperceptibility and the ability to resist steganography detection.