公开(公告)号：US10237576B2

公开(公告)日：2019-03-19

申请号：US15260302

申请日：2016-09-08

Applicant: Ningbo University

Inventor： Gangyi Jiang ,  Jing Wang ,  Yang Song ,  Hua Shao

IPC: H04N7/24 ,  H04N19/593 ,  H04N19/467 ,  H04N19/463 ,  H04N19/597 ,  H04N19/48 ,  H04N7/167 ,  H04N19/176

Abstract: The present invention disclosed a 3D-HEVC depth video information hiding method based on single-depth intra mode, which comprises information embedment part and information extraction part. During information embedment, if the pixels in the candidate list are equal using the encrypt information to modulate the index of the pixel and completes the embedment. If the pixels are different, judging the neighboring CU of the CU whose depth is 2 or 3 and modulating the index of the pixel to complete embedment of the hidden information. The advantage of the present invention is high security, low calculation complexity and small influence on data rate.

公开(公告)号：US20170109858A1

公开(公告)日：2017-04-20

申请号：US15045256

申请日：2016-02-17

Applicant: Ningbo University

Inventor： Gangyi Jiang ,  Jing Wang ,  Mei Yu ,  Fen Chen

IPC: G06T1/00 ,  H04N19/40 ,  H04N19/467

CPC classification number: G06T1/0028 ,  G06T1/0057 ,  G06T2201/0053 ,  H04N19/40 ,  H04N19/467

Abstract: A zero-watermarking registration and detection method for HEVC video streaming against requantization transcoding is provided. To increase an attack-resistance of a registration watermarking, the registration method firstly processes depth values corresponding to respective brightness blocks in a target video streaming with a depth binarization during constructing registration watermarking information through depth features, because the depth binarization well reflects a robustness of the registration watermarking. A first watermarking information matrix including a part of the depth values after the depth binarization is encrypted with a random matrix, so as to increase a safety of the registration watermarking. The registration method directly generates zero-watermarking through the depth features of the video streaming without modifying original carrier information and affecting a watermarking transparency. Meanwhile, the registration method has a strong robustness against attacks, such as the requantization transcoding of quantization parameters within a certain range of variation and common signal processing.

公开(公告)号：US10368051B2

公开(公告)日：2019-07-30

申请号：US15687276

申请日：2017-08-25

Applicant: Ningbo University

Inventor： Gangyi Jiang ,  Jing Wang ,  Fen Chen ,  Yongqiang Bai ,  Yang Wang

IPC: H04N13/00 ,  H04N13/161 ,  H04N13/15 ,  H04N19/124 ,  H04N19/172 ,  H04N19/176 ,  H04N19/182 ,  H04N19/467 ,  H04N19/597 ,  H04N19/136 ,  H04N19/154 ,  H04N19/132

Abstract: A 3D-HEVC inter-frame information hiding method based on visual perception includes steps of information embedding and information extraction. In the step of information embedding, the human visual perception characteristic is considered, stereo salient images are obtained by a stereo image salient model, and the stereo salient images are divided into salient blocks and non-salient blocks with an otsu threshold. The coding quantization parameters are modified according to different modulation rules for different regions. Then, based on the modified quantization parameters, the coding-tree-units are coded to complete the information embedding. In the step of information extraction, no original video is needed, no any side information needs to be transmitted, and the secret information can be blindly extracted. The present invention combines with the human visual perception characteristic, and selects P frames and B frames as embedded frames for effectively reducing the decrease of the stereo video subjective quality.

公开(公告)号：US09947065B2

公开(公告)日：2018-04-17

申请号：US15045256

申请日：2016-02-17

Applicant: Ningbo University

Inventor： Gangyi Jiang ,  Jing Wang ,  Mei Yu ,  Fen Chen

IPC: G06K9/00 ,  G06T1/00 ,  H04N19/467 ,  H04N19/40

CPC classification number: G06T1/0028 ,  G06T1/0057 ,  G06T2201/0053 ,  H04N19/40 ,  H04N19/467

Abstract: A zero-watermarking registration and detection method for HEVC video streaming against requantization transcoding is provided. To increase an attack-resistance of a registration watermarking, the registration method firstly processes depth values corresponding to respective brightness blocks in a target video streaming with a depth binarization during constructing registration watermarking information through depth features, because the depth binarization well reflects a robustness of the registration watermarking. A first watermarking information matrix including a part of the depth values after the depth binarization is encrypted with a random matrix, so as to increase a safety of the registration watermarking. The registration method directly generates zero-watermarking through the depth features of the video streaming without modifying original carrier information and affecting a watermarking transparency. Meanwhile, the registration method has a strong robustness against attacks, such as the requantization transcoding of quantization parameters within a certain range of variation and common signal processing.

公开(公告)号：US20170374347A1

公开(公告)日：2017-12-28

申请号：US15687276

申请日：2017-08-25

Applicant: Ningbo University

Inventor： Gangyi Jiang ,  Jing Wang ,  Fen Chen ,  Yongqiang Bai ,  Yang Wang

IPC: H04N13/00 ,  H04N19/467 ,  H04N19/182 ,  H04N19/176 ,  H04N19/172 ,  H04N19/597 ,  H04N19/124

CPC classification number: H04N13/161 ,  H04N13/15 ,  H04N19/124 ,  H04N19/132 ,  H04N19/136 ,  H04N19/154 ,  H04N19/172 ,  H04N19/176 ,  H04N19/182 ,  H04N19/467 ,  H04N19/597

Abstract: A 3D-HEVC inter-frame information hiding method based on visual perception includes steps of information embedding and information extraction. In the step of information embedding, the human visual perception characteristic is considered, stereo salient images are obtained by a stereo image salient model, and the stereo salient images are divided into salient blocks and non-salient blocks with an otsu threshold. The coding quantization parameters are modified according to different modulation rules for different regions. Then, based on the modified quantization parameters, the coding-tree-units are coded to complete the information embedding. In the step of information extraction, no original video is needed, no any side information needs to be transmitted, and the secret information can be blindly extracted. The present invention combines with the human visual perception characteristic, and selects P frames and B frames as embedded frames for effectively reducing the decrease of the stereo video subjective quality.

公开(公告)号：US20160381389A1

公开(公告)日：2016-12-29

申请号：US15260302

申请日：2016-09-08

Applicant: Ningbo University

Inventor： Gangyi Jiang ,  Jing Wang ,  Yang Song ,  Hua Shao

IPC: H04N19/593 ,  H04N19/172 ,  H04N19/103 ,  H04N19/176 ,  H04N19/463 ,  H04N19/467 ,  H04N19/115

CPC classification number: H04N19/593 ,  H04N19/463 ,  H04N19/467 ,  H04N19/48 ,  H04N19/597

Abstract: The present invention disclosed a 3D-HEVC depth video information hiding method based on single-depth intra mode, which comprises information embedment part and information extraction part. During information embedment, if the pixels in the candidate list are equal using the encrypt information to modulate the index of the pixel and completes the embedment. If the pixels are different, judging the neighboring CU of the CU whose depth is 2 or 3 and modulating the index of the pixel to complete embedment of the hidden information. The advantage of the present invention is high security, low calculation complexity and small influence on data rate.

Abstract translation: 本发明公开了一种基于单深度模式的3D-HEVC深度视频信息隐藏方法，包括信息嵌入部分和信息提取部分。 在信息嵌入期间，如果候选列表中的像素相等，则使用加密信息来调制像素的索引并完成嵌入。 如果像素不同，则判断深度为2或3的CU的相邻CU，并调制像素的索引以完成隐藏信息的嵌入。 本发明的优点是安全性高，计算复杂度低，对数据速率影响小。