New Hardware Static and Reconfigurable Architectures for Video Watermarking System
| Autor: | Salah Dhahri, Majdi Elhajji, Abdelkrim Zitouni, Roukaya Dalbouchi |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Computer science
business.industry Subject (documents) 02 engineering and technology General Medicine 020202 computer hardware & architecture Scrambling Hardware and Architecture Motion estimation 0202 electrical engineering electronic engineering information engineering 020201 artificial intelligence & image processing Electrical and Electronic Engineering business Digital watermarking Computer hardware Block-matching algorithm |
| Zdroj: | Journal of Circuits, Systems and Computers. 29:2050168 |
| ISSN: | 1793-6454 0218-1266 |
| Popis: | The watermarking technique is an active subject in current research used as a solution for copyright protection in multimedia documents. In this paper, we propose the first hardware invisible robust video watermarking application based on motion estimation. Since the designers of this application face many challenges, two types of architecture are performed: static and dynamic/partial reconfigurable architecture. The proposed architecture is adapted to HEVC encoded video. Two protection techniques are linked up: the digital watermarking to insert a watermark in the video, and the scrambling technique for overall video protection. The watermark embedding is treated in the horizontal and vertical components of even motion vectors. Eventually, the entire vectors are scrambled. The used watermark is a binary sequence where only one bit is inserted into the horizontal and the vertical components of motion vectors. The recommended architecture applies for slow and fast video sequence, where we use a motion estimator reconfigured according to the macro-block video movement. We also utilize a pipeline structure and a clock gating module to increase computing power and reduce power consumption. Experimental results show that the suggested static and dynamic/partial reconfigurable architecture guarantees material efficiency and superior performance in terms of frequency and power consumption. |
| Databáze: | OpenAIRE |
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