Glass-less 3D video encryption method based on digital watermark encryption and system

Abstract

The invention discloses a glass-less 3D video encryption method based on digital watermark encryption and a system. The method comprises steps that, step 1, randomized numbers are combined to form an original digital watermark in a random arrangement mode, and the original digital watermark is divided into m sub digital watermarks randomly; step 2, the m sub digital watermarks are respectively embedded in each viewpoint image of an two-dimensional frame image to acquire the watermark encryption two-dimensional frame image; step 3, step 1 and the step 2 are cycled till watermark encryption for all two-dimensional frame images is carried out, and the watermark encryption two-dimensional frame images are converted into glass-less 3D videos; and step 4, sub digital watermarks of viewpoint images included by glass-less 3D video frame images are extracted to acquire original digital watermarks. The method has properties of excellent robustness and invisibility, glass-less 3D videos can be rapidly and conveniently encrypted, copyright protection for the glass-less 3D videos can be further realized, and the video playing and displaying effects are not damaged.

Description

technical field [0001] The invention belongs to the technical field of naked-eye 3D video encryption, and in particular relates to a naked-eye 3D video encryption method and system based on digital watermark encryption. Background technique [0002] Glasses-free 3D video is a 3D video that can be viewed directly without wearing auxiliary equipment (such as red and blue, polarization, etc.), and it has a wide range of application backgrounds in various fields. [0003] Usually, in order to obtain a better stereoscopic effect, multiple parallax images are often used for synthesis, and the viewer only needs to see two of the images at different angles to generate parallax and see the stereoscopic effect. For this kind of synthesis, an extremely convenient and fast algorithm is needed to synthesize a large number of parallax images to form a naked-eye 3D video source. [0004] The research on image watermarking by domestic and foreign scholars and research institutions has tend...

AI Technical Summary

Problems solved by technology

[0004] The research on image watermarking by scholars and research institutions at home and abroad has tended to be perfect, but the research on video digital watermarking is still relatively lagging behind, and a unified evaluation standard has not been established, and it still needs to be mature.

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