Search results for: Deng Minghui
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IERI Procedia > 2012 > 3 > Complete > 67-72
Directionlet transform is a lattice-based skewed discrete wavelet transform. It has advantages of multi-directional and anisotropy compared with standard two-dimensional wavelet transform, thus, it is better at describing the characteristics of images. For the research focus of different-source image fusion, a novel fusion algorithm based on Directionlet transform was proposed, and the fusion speed...
article
Procedia Engineering > 2011 > 15 > Complete > 1544-1549
In this paper, we introduce a robust image watermarking method based on Hilbert-Huang Transform (HHT) against geometric distortion. This watermarking is detected by a linear frequency change. The HHT transformation is used to detect the watermark. The chirp signals are used as watermarks and this type of signals is resistant to all stationary filtering methods and exhibits geometrical symmetry. In...
chapter
In this paper,we introduce a robust image watermarking method based on Hilbert-Huang Transform against geometric distortion. This watermarking is detected by a linear frequency change. The Hilbert-Huang transformation is used to detect the watermark. The chirp signals are used as watermarks and this type of signals is resistant to all stationary filtering methods and exhibits geometrical symmetry...
chapter
In this paper, a robust image watermarking method in two-dimensional space/spatial-frequency distributions domain is proposed which is robust against geometric distortion. This watermarking is detected by a linear frequency change. The one-dimensional S transformation is used to detect the watermark. The chirp signals are used as watermarks and this type of signals is resistant to all stationary filtering...
chapter
In this paper, a robust image watermarking method in two-dimensional space/spatial-frequency distributions domain is proposed which is robust against geometric distortion. This watermarking is detected by a linear frequency change. The chirp let transformation is used to detect the watermark. The chirp signals are used as watermarks and this type of signals is resistant to all stationary filtering...
chapter
In this paper, we introduce a robust image watermarking method based on bi-dimensional empirical mode decomposition (BEMD) against geometric distortion. Based on the characteristics of the image theory and human visual system, the proposed method makes use of orthogonal properties of empirical mode decomposition to achieve the BEMD transform on the image. The image is decomposed into a series of IMFs...
chapter
In this paper, a robust image watermarking method in two-dimensional space/spatial-frequency distributions domain is proposed which is robust against geometric distortion. This watermarking is detected by a linear frequency change. The one-dimensional S transformation is used to detect the watermark. The chirp signals are used as watermarks and this type of signals is resistant to all stationary filtering...
chapter
In this paper, we introduce a robust watermark scheme against shearing attack for digital images based on video series wavelet transform. Based on the characteristics of the image theory and human visual system, the proposed method make use of the there-dimensional video wavelet transform to split the image to a sense of image videos and the watermark is adaptively weighed to the different positions...
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In this paper, we introduce a 3D wavelet transform based robust watermark casting scheme against shearing attack for digital images. Based on the characteristics of the image theory and human visual system, the proposed method make use of the there-dimensional video wavelet transform to split the image to a sense of image videos and the watermark is adaptively weighed to the different positions of...
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In this paper, a robust digital watermarking method against shearing based on orthogonal function system is introduced. The proposed method makes use of the complete generalized orthogonal properties of Haar orthogonal function system to achieve the piece-based orthogonal transform on the image. The significant middle frequently coefficients in the transformation matrix are picked up, based on characteristics...
chapter
In this paper, a robust image watermarking method in two-dimensional space/spatial-frequency distributions domain is proposed which is robust against geometric distortion. This watermarking is detected by a linear frequency change. The Doppler let transformation is used to detect the watermark. The chirp signals are used as watermarks and this type of signals is resistant to all stationary filtering...
