عنوان البحث(Papers / Research Title)
Watermarking Robust Against Dropping Frame
الناشر \ المحرر \ الكاتب (Author / Editor / Publisher)
توفيق عبد الخالق عباس الاسدي
Citation Information
توفيق,عبد,الخالق,عباس,الاسدي ,Watermarking Robust Against Dropping Frame , Time 5/11/2011 9:11:54 AM : كلية تكنولوجيا المعلومات
وصف الابستركت (Abstract)
Watermarking Robust Against Dropping Frame
الوصف الكامل (Full Abstract)
Watermarking Robust Against Dropping Frame
DR. Tawfiq A. Abbas Isra a Hadi Ali Majid Jabbar Jawad
Abstract:
Recently, digital contents are copied easily. So digital watermark technique which aims to copyright protection of digital contents becomes important. There are several watermarking methods have been proposed in this area, but this watermarking methods must be robust against geometric attacks, such as rotation, cropping, frame dropping. So, robustness against geometric attacks remains one of the most difficult areas of watermark research, not only for video, but also for still images. In this paper, we proposed a method for embedding digital watermark in video, by dividing the watermark into Blocks according to the number of scenes within video, then we embedded any block of watermark in the frames of scenes. After embedding operations, we examined the robustness of the proposed method against frame dropping, by dropping several frames from watermarked video arbitrarily. After extraction operation, and by using PSNR we found that there is no difference between the embedded and extracted watermark.
Itroduction:
Advancements in digital multimedia technologies have given rise to a growing popularity in video-based applications such as Internet video, wireless video, videophones, video conferencing, among many others. In parallel to the growing diversity in video applications, technology also facilitated unauthorized copying and distribution of digital video, thus creating a copyright dilemma for the multimedia industry. A promising technology that received a considerable attention for embedding copyright information in a broad range of multimedia applications, including video, is digital watermarking[G. Langelaar, I.Setyawan, and R.Lagendijk.2000]. Video watermarking research received less attention than image watermarking due to its inherit difficulty, however, many algorithms have already been proposed [G. Doerr and J. Dugelay.2003]. Existing algorithms can be classified into compressed video watermarking and uncompressed video watermarking algorithms[D. Kundur, K, Su, and D. Hatzinakos.2004].
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