MASTER THESIS Video Watermarking - Computer Graphics Group ...

Table of Contents
Abstract 5
1 Introduction 6
2 Watermark Theory 8
2.1 Watermark Classification...............................................................................9
2.2 Embedding and Detection.............................................................................10
2.3 Watermark Attacks.......................................................................................12
3 The H.264 Standard 13
3.1 The H.264 Structure.....................................................................................13
3.1.1 NAL Units and Pictures....................................................................13
3.1.2 Slices..................................................................................................14
3.1.3 Macroblocks.......................................................................................15
3.2 Encoding.........................................................................................................16
3.3 Decoding.........................................................................................................18
4 Implementation Details 19
4.1 The H.264 Codec...........................................................................................19
4.1.1 Supported Features...........................................................................20
4.1.2 Known Bugs and Limitations...........................................................20
4.2 The Watermarking Framework....................................................................21
4.2.1 GStreamer Multimedia Framework.................................................21
4.2.2 Embedding.........................................................................................22
4.2.3 Detection............................................................................................26
4.2.4 Notes..................................................................................................29
4.3 Watermarking Methods................................................................................30
4.3.1 Pseudo-random Noise Watermark...................................................30
4.3.2 Block Watermark...............................................................................31
4.3.3 Coefficient Watermark......................................................................33
5 Testing 34
5.1 Perceptibility.................................................................................................35
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