• Title/Summary/Keyword: Video Watermark

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Watermarking of Compressed Video in the Bitstream Domain: An Efficient Algorithm and its Implementation

  • Drobouchevitvh Inna G.;Lim Sung-Jun;Han Byung-Wan;Chang Hang-Bae;Kim Kyung-Kyu
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.31 no.4C
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    • pp.458-471
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    • 2006
  • Digital watermarking of multimedia data is a very active research area that has enjoyed a considerable amount of attention in recent years. In this paper, we propose an algorithm for embedding/detecting a fragile watermark in MPEG-4 compressed video domain (Simple and Advance Simple Profiles). The watermark bits are put directly into Huffman VLC-codespace of quantized DCT domain. The advantage of watermark embedding into the compressed domain is the significant savings for a real-time implementation as it does not require a full decoding operation. The watermark embedding does not change the video file size. The algorithm demonstrates high watermarking capacity, thereby providing reliable foolproof authentication. The results of experimental testing demonstrate that watermark embedding preserves the video quality. Watermark detection is performed without using the original video.

Active Video Watermarking Technique for Infectious Information Hiding System (전염성 정보은닉 시스템을 위한 능동형 비디오 워터마킹 기법)

  • Jang, Bong-Joo;Lee, Suk-Hwan;Kwon, Ki-Ryong
    • Journal of Korea Multimedia Society
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    • v.15 no.8
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    • pp.1017-1030
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    • 2012
  • Most watermarking schemes for video contents protection have been studied to increase watermark's robustness and invisibility against such compressions and many kinds of signal processing after embedding copyright information to the original contents. This paper proposes an active watermarking that infect watermark to contents in the video decoding process using embedded infectious watermark and control signals from a video encoder side. To achieve this algorithm, we design a kernel based watermarking in video encoder side that is possible to recover the original contents and watermark in watermark detection procedure perfectly. And then, by reversible de-watermarking in video decoder side, we design the active watermark infection method using detected watermark and control signal. This means that our system can provide secure re-distributions of video contents without any quality degration and watermark bit error against transcoding or re-encoding processing. By experimental results, we confirmed that the embedded watermark was infected by video contents and codec perfectly without any declines of compression ratio and video quality.

Reversible Watermarking based Video Contents Management and Control technique using Biological Organism Model (생물학적 유기체 모델을 이용한 가역 워터마킹 기반 비디오 콘텐츠 관리 및 제어 기법)

  • Jang, Bong-Joo;Lee, Suk-Hwan;Kwon, Ki-Ryong
    • Journal of Korea Multimedia Society
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    • v.16 no.7
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    • pp.841-851
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    • 2013
  • The infectious information hiding system(IIHS) is proposed for secure distribution of high quality video contents by applying optimized watermark embedding and detection algorithms to video codecs. And the watermark as infectious information is transmitted while target video is displayed or edited by codecs. This paper proposes a fast and effective reversible watermarking and infectious information generation for IIHS. Our reversible watermarking scheme enables video decoder to control video quality and watermark strength actively for by adding control code and expiration date with the watermark. Also, we designed our scheme with low computational complexity to satisfy it's real-time processing in a video codec, and to prevent time or frame delay during watermark detection and video restoration, we embedded one watermark and one side information within a macro-block. Experimental results verify that our scheme satisfy real-time watermark embedding and detection and watermark error is 0% after reversible watermark detection. Finally, we conform that the quality of restored video contens is almost same with compressed video without watermarking algorithm.

A New Video Watermarking Scheme Resistant to Collusion and Synchronization Attacks

  • Kim, Ki-Jung
    • International Journal of Contents
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    • v.5 no.2
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    • pp.32-37
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    • 2009
  • A new video watermarking scheme with robustness against collusion and synchronization attacks is presented. We propose to embed only a few copies of the watermark along the temporal axis into frames, which are located at the borders of each two different plotlines of the video. As a result, each change of the video plotline is transformed into pulse, which is used for watermark embedding and extraction. In addition, since we embed a watermark only into a small number of frames, the distortions of the video are reduced to minimum. Experimental results show the robustness of the proposed scheme.

System Realization and Video Watermark with Spatial and interframe Information (공간 및 프레임간 정보를 이용한 비디오 워터마크와 시스템 구현에 관한 연구)

  • Kim, Ja-Hwan;Ryu, Kwang-Ryol
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2007.06a
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    • pp.157-160
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    • 2007
  • System realization and video watermarking using spatial and interframe information is presented in this paper. The system is constructed with DSP processor to process compression and watermark algorithm with real time. Video watermark algorithm is used the watermark insertion using the spatial and interframe. As a results, the processing time of D1 image per frame is 32.1msec in DSP.

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Discrete Multiwavelet-Based Video Watermarking Scheme Using SURF

  • Narkedamilly, Leelavathy;Evani, Venkateswara Prasad;Samayamantula, Srinivas Kumar
    • ETRI Journal
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    • v.37 no.3
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    • pp.595-605
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    • 2015
  • This paper proposes a robust, imperceptible block-based digital video watermarking algorithm that makes use of the Speeded Up Robust Feature (SURF) technique. The SURF technique is used to extract the most important features of a video. A discrete multiwavelet transform (DMWT) domain in conjunction with a discrete cosine transform is used for embedding a watermark into feature blocks. The watermark used is a binary image. The proposed algorithm is further improved for robustness by an error-correction code to protect the watermark against bit errors. The same watermark is embedded temporally for every set of frames of an input video to improve the decoded watermark correlation. Extensive experimental results demonstrate that the proposed DMWT domain video watermarking using SURF features is robust against common image processing attacks, motion JPEG2000 compression, frame averaging, and frame swapping attacks. The quality of a watermarked video under the proposed algorithm is high, demonstrating the imperceptibility of an embedded watermark.

Video Watermarking Scheme for Scalable Video Coding using ROI

  • Yoon, Ji-Sun;Kwon, Seong-Geun;Lee, Suk-Hwan;Song, Yoon-Chul;Kim, Min-Hwan;Kwon, Ki-Ryong
    • Journal of Korea Multimedia Society
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    • v.11 no.6
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    • pp.796-806
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    • 2008
  • This paper presents a blind video watermarking algorithm that has the robustness against spatial, temporal, and SNR scalability and transcoding for the copyright protection of video contents in heterogeneous multimedia service. The proposed process of watermark embedding and detecting is accomplished on base layer for considering spatial scalability. The watermark consists of the string and the ordering number of string for considering temporal scalability. Thus, each of frames has the bitstream of one character and a ordering number of its character. To robust against FGS, the proposed algorithm quantizes low and middle frequency coefficients in ROI region of each of frames and embeds its watermark bitstream into the specific bits of the quantized coefficients. Experimental results verified that the proposed algorithm satisfies the invisibility of watermark and also has the robustness against spatial scalability, temporal scalability and FGS.

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A fast watermark embedding method for MPEG-2 bit stream (MPEG-2 비트 스트림에 대한 고속 워터마크 삽입방법)

  • 김성일;서정일;김구영;원치선
    • Proceedings of the Korean Society of Broadcast Engineers Conference
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    • 1997.11a
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    • pp.151-154
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    • 1997
  • In this paper, we propose a new watermarking algorithm for copyright protection of video data. The proposed algorithm inserts a watermark directly on the MPEG-2 bitstream. Since more and more video data are stored and transmitted in a compressed form, it is desirable to insert a watermark on the compressed bit stream to avoid the expensive full-decoding and re-encoding process. Embedding a watermark in the compressed domain, we can also avoid the effect of the compression error which may erase the watermark.

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A Wavelet-Based Video Watermarking Approach Robust to Re-encoding

  • Yoo, Kil-Sang;Lee, Won-Hyung
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.33 no.1C
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    • pp.124-130
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    • 2008
  • We present in this paper a method of digital watermarking for video data based on the discrete wavelet transform. In the proposed method, a watermark signal is inserted into the decompressed bitstream while detection is performed using the uncompressed video. This method allows detection if video has been manipulated or its format changed. We embed the watermark in the lowest frequency components of each frame in the un-coded video by using wavelet transform. The watermark can be extracted directly from the decoded video without access to the original video. Experimental results show that the proposed method gives the watermarked video of better quality and is robust against MPEG coding, down sampling and re-encoding to other type of video format such as MPEG4, H.264

A Study on the design of Video Watermarking System for TV Advertisement Monitoring (TV광고 모니터링을 위한 비디오 워터마킹 시스템의 설계에 관한 연구)

  • Shin, Dong-Hwan;Kim, Sung-Hwan
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.56 no.1
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    • pp.206-213
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    • 2007
  • In this paper, The monitoring system for TV advertisement is implemented using video watermark. The functions of the advertisement monitoring system are monitoring the time, length, and index of the on-air advertisement, saving the log data, and reporting the monitoring result. The performance of the video watermark used in this paper is tested for TV advertisement monitoring. This test includes LAB test and field test. LAB test is done in laboratory environment and field test in actually broadcasting environment. LAB test includes PSNR, distortion measure in image, and the watermark detection rate in the various attack environment such as AD/DA(analog to digital and digital to analog) conversion, noise addition, and MPEG compression. The result of LAB test is good for the TV advertisement monitoring. KOBACO and SBS are participated in the field test. The watermark detection rate is 100% in both the real-time processing and the saved the processing. The average deviation of the watermark detection time is 0.2 second, which is good because the permissible average error is 0.5 second.