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Digital media production and editing technologies have led to widespread forgeries and unauthorized sharing of digital video. This paper presents a method to detect video tampering and differ it from video processing operations, such as recompression, noise, and brightness increase, using a practical watermarking scheme for real-time authentication of digital video. It can be configured to adjust...
The authors consider two new attacks on watermarked video specific to HD 60 fps H.264 High and Main profiles: selective I/P frames' removal and zeroing of residuals in B frames. We propose the method of embedding of a readable watermark for H.264 High Profile video robust to such attacks. The video stream is partially decoded removing entropy coding, then a watermark is embedded into low-frequency...
Watermarking is a recently developed technique which is currently dominating the world of security and digital processing in order to ensure the protection of digitized trade. The purpose of this work is twofold. It is firstly to establish a state of the art that goes through the existing watermarking methods and their performances. And secondly to design, implement and evaluate a new watermarking...
This paper presents a method to combine the SVD and frame synchrony in watermark. The synchrony code frame, serial number and embedding position is convenient for watermark embedding and extraction. Embedding video watermark uses part of M-series spread spectrum sequence to improve the robustness and none conjunction of video image. The experiment shows that the algorithm checks the watermark efficiently...
This paper proposed an algorithm to improve image security and its authority for its owner. This has been achieved by means of watermarking and encryption technique. Two methods RC4 and Advances Encryption Standard (AES) are adopted for encryption which uses stream cipher and block cipher respectively. For getting the watermarked image Rational Dither Modulation (RDM) method is used. First step of...
This paper introduces a digital video watermarking scheme for real-time authentication of H.264/AVC compressed videos. The watermark signals, which represent the macroblock's (MB) and frame's indices, are embedded into the last nonzero quantized DCT value of blocks. Also, analyzing the detection error helps to distinguish malicious attacks from some common processing such as H.264/AVC recompression...
A scheme is proposed to hide data in images based on a prioritised ordering of the content of the host image. The embedding process uses the watermark strength to determine the ordering of the 16 regions resulting from the second level wavelet transform DWT decomposed content of the host image. The DWT decomposed sub-bands of the cover image were analysed, transformed using the Pixel Value Difference...
Integral Imaging (InIm) is a promising three-dimensional (3D) content creation and delivery technique. The simplicity of the method constitutes a straightforward and compact way for acquiring and displaying 3D data. However issues like integrity and authentication of a transmitted InIm are not discussed in the literature. In this paper we propose a jointly optimized InIm fragile self watermarking...
In this paper, we propose a new video scrambling and fingerprint embedding method for digital right protection. In this method, a video clip is embedded with v Gaussian watermarks and then scrambled and multi casted from a content server to U clients. A BIBD-based methodology is applied to determine the needed number (v) of sub keys for a total of U clients. In the mean time, the server also decomposes...
In order to solve the conflict with robustness and invisibility of video watermark, the algorithms proposed in this paper select certain blocks according to the texture. By using the binary image to deal with logistic chaotic map and error-correction coding as watermarked data can improve the robustness and security. The low frequency signals of the selected blocks are modified such that their Discrete...
Video watermarking is an efficient technology that has been developed primarily to tackle the problem of copy right protection and authentication. In this paper, video watermarking scheme is applied by exploiting the motion vectors of P-frame and the region information of the motion vectors is used to insert the watermark bits. The imperceptibility of the watermarked video is enhanced as we are embedding...
Based on the H.264/AVC Video coding standard, a new video steganography algorithm is proposed and realized in this paper. The algorithm designed a motion vector component feature to control embedding, and also to be the secret carrier. The information embedded will not significantly affect the video sequence's visual invisibility and statistical invisibility. Experiments show that the algorithm has...
Reversible watermarking technique can be used to protect the copyright of digital video and restore it without any distortion while extracting the watermarking information. However, for H.264/AVC streams, reversible watermarking scheme has the bottleneck for practical applications due to the intra error propagation phenomenon induced by watermark embedding. In this paper a novel decoder-based reversible...
Visible watermarked images and videos are generally used to convey ownership information. However, the visible watermark is generally irreversible and thus authenticated users cannot recover the original image or video quality after watermark extraction. This poses a limitation in various scenarios including military, law and medical applications. This paper presents a novel reversible visible watermarking...
By embedding some information into different resolutions of videos and combining the video segments together, the paper proposed a H.264 information hiding algorithm in video stream switching application. Detailed embedding course carries out in the movement vector after H.264 compression, and the embedding needn't to be operated while the video being transmitted, making the real-time performance...
In this paper, we propose a full reference Video Quality Assessment (VQA) algorithm based on the Adaptive Block-size Transform Just-Noticeable Difference (ABT-JND) model. Firstly, ABT-JND is introduced for its efficiency of modeling the Human Vision System (HVS) characteristics. Based on the ABT-JND model, the full reference VQA is developed, by capturing HVS responses of spatio-temporal distortions...
In the fragile digital color image watermarking for RGB color image authentication, fragility or sensitivity of the embedded watermark to malicious attacks is an important problem. In this work the current researches propose Bit Plane Index Modulation (BPIM) based fragile watermarking scheme for authenticating RGB color image. To deal with counterfeiting attacks block wise division dependency is established...
Unlike still image, video watermarking technology must meet the real-time requirement. In this paper, we present a novel real-time information hiding technique in VLC domain, watermarking is performed entirely in the compressed domain with partial decompression, thus providing the speed necessary for real time video applications. Simulation results show that the proposed algorithm can perform the...
For some special data transmission situations, data must be transmitted safely and reliably. In this paper, a data embedding algorithm is proposed based on difference expansion. The digital image is a carrier of data transmission, according to the principle of difference expansion, data is embedded to digital image and sent to the receiver that is used to restore data using reversible data embedding...
H.264/AVC is a novel video coding standard that provides better coding efficiency than previous video coding standards. It adopts many predictive coding algorithms to improve the coding efficiency of intra and inter frames. Due to its characteristics of high compressibility, it can achieve high quality at low bit rate. Therefore, more and more applications adopt H.264/AVC codec. Nowadays, a great...
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