| 左力文,骆挺,蒋刚毅,郁梅,高巍.基于多视点视频特征的3D-HEVC深度视频信息隐藏算法[J].光电子激光,2018,29(5):530~538 |
| 基于多视点视频特征的3D-HEVC深度视频信息隐藏算法 |
| An information hiding algorithm in depth map for 3D-HEVC based on feature of mu lti-View video |
| 投稿时间：2017-08-19 |
| DOI： |
| 中文关键词: 信息隐藏 深度视频 3D-HEVC 量化参数(QP) 虚拟视点 |
| 英文关键词:information hiding depth video coding three-dimensional high efficiency video coding (3D-HEVC) quantization parameter (QP) virtual viewpoint |
| 基金项目:国家自然科学基金(61501270,61671258)、宁波市自然科学基金(2017A610127)和宁波市领军和拔尖人才培养工程择优资助科研项目 (1.宁波大学 科学技术学院,浙江 宁波 315211； 2.宁波大学 信息科学与工程学院,浙江 宁波 315211) |
|
| 摘要点击次数: 1005 |
| 全文下载次数: 0 |
| 中文摘要: |
| 为了更安全地传输秘密信息和保护3D视频,提 出基于多视点视频特征的3D-HEVC深度视频信息隐 藏算法。首先结合彩色视频的纹理特征,考虑深度视频不同区域对绘制视点的质量和编码效 率的影响,对 深度视频进行区域分割。然后针对不同的区域,采用不同的方式调制最大编码单元(LCU) 的QP值嵌入 秘密信息。最后,用修改后的QP值进行编码压缩,传输视频信息。实验仿真结果表明,相 比于原始HTM13.0, 本算法编码重建深度视频绘制视点质量的PSNR平均下降0.0015dB, 码率平均增加0.035%。本文算法 能较好地保证绘制视点的质量,对视频流的码率影响较小,且能实现秘密信息的盲提取。 |
| 英文摘要: |
| To safely transmit the secret information and protect three-dimensional (3D) vi deo,an information hiding algorithm in depth map for 3D high efficiency video coding (HEVC) based o n feature of multi-view video is proposed.Firstly, combining the texture features of the color video and considering the influence of different regions in depth video on the quality and coding efficiency of the virtual viewpoint,the d epth video is divided.Then, for different regions,the quantization parameter (QP) value of the maximum encod ing unit (LCU) is modulated in the different ways to embed the secret information.Finally,the modified QP value is adopted to encode and compress the 3D video.Experimental results demonstrate that the average decrease of peak signal-to-noise ratio (PSNR) for the rendered virtual view image based reconstructed depth video is 0.0015dB,and the average bit rate is increased by 0.03515%.The algorithm can guarantee the quality of the rende red virtual viewpoint effectively.It also has little effect on the video stream rate,and the secret information can be ex tracted blindly. |
| 查看全文 下载PDF阅读器 |
| 关闭 |
|
|
|
|
|