Research On 3D Video Digital Watermarking Technology Based On Human Visual Characteristics Model

With the development of information technology and video technology,3D products have entered into the daily life of consumers,but it is easy to be stolen and destroyed by criminals in the process of transmission and storage.The original creators need to protect their own creative rights and copyright,in addition to maintaining their rights on the legal level,they also need to use modern information technology to make their works can be identified and protected".Digital watermarking technology can realize the copyright protection of multimedia works and the authenticity and integrity of the content.In recent years,digital watermarking technology for 3D video has been rapid development based on image and video digital watermarking technology,the single algorithm is developing and the traditional embedded watermark is also developing to zero watermark.In this paper,we studies the image and video watermarking technology,combines with the characteristics of 3D video digital and human visual system,draws the advantages of others researchers,introduces the human visual characteristics model to the feature extraction method,proposes a digital zero watermarking algorithm for 3D video based on human visual characteristics model.Firstly,this paper analyzes the background and significance of the research on 3D video digital watermarking,and takes the current situation of digital watermarking technology as the guide.The characteristics of human visual system are introduced in detail,such as frequency sensitivity,brightness sensitivity and so on.This paper explores the applications and developments of human visual system characteristics from the previous research work.According to the characteristics of human visual system and the image features,we select the appropriate visual characteristics model.This paper also makes a thorough research on the digital watermarking technology,including the concept,evaluation standard and classification basis of digital watermarking;the basic frame of the traditional embedded digital watermarking embedding and extraction also algorithm performance evaluation standards.After studying the characteristics of the traditional digital watermark technology,we introduces the idea of new zero watermarking algorithm.This paper introduces the application of 3D based video watermarking method,which is based on traditional embedding watermarking method or zero watermarking algorithm,analyzes the basic ideas and characteristics of various algorithms,and choose its superiority thought applied to the improved algorithm.The zero watermarking algorithm based on DCT and SVD singular value decomposition is studied emphatically.This algorithm draws on its overall processes and ideas,including the Arnold scrambling transform,segmented Logistic chaotic mapping,SVD singular value decomposition in watermark pretreatment method;start from the selection of characteristics coefficients in zero watermarking,the advanced algorithm improves the zero watermarking algorithm based on DCT and SVD singular value decomposition,The RGB model is converted into a YCBCR model in the video frame diffierence image.The method of selecting the characteristics coefficients by DCT block transform is converted to the method of selecting the DWT coefficients based on human visual characteristics model threshold in Y domain in the model,experiments show that this method has better robustness and invisibility.This paper puts forward a zero watermarking improved algorithm for 3D video based on human visual characteristics model.Through the experimental comparative analysis,we find the algorithm shows better recoverability and robustness.