Watermarking and Encryption for Holographic Communication
نویسندگان
چکیده
Holographic communication is a three-dimensional (3D) video technology based on computer-generated holograms (CGHs) which has the potential to give users more realistic visual perception. As this an emerging field, encrypted encoding and decoding methods in holographic have not been widely studied. In work, watermarking encryption method for proposed. A watermark inserted into original image using discrete cosine transform before calculation of CGH, while secret key employed produce CGH during calculation. Through proposed method, signal difficult decrypt. Even if decrypted, source leak easy trace due existence watermark. The can provide practical solution privacy protection copyright 3D communication.
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ژورنال
عنوان ژورنال: Photonics
سال: 2022
ISSN: ['2304-6732']
DOI: https://doi.org/10.3390/photonics9100675