Geometrically Invariant Color Medical Image Null-Watermarking Based on Precise Quaternion Polar Harmonic Fourier Moments.
Zhiqiu XiaXingyuan WangMingxu WangSalahuddin UnarChunpeng WangYing LiuXiaoxiao LiPublished in: IEEE Access (2019)
Keyphrases
- medical images
- fourier transform
- fourier domain
- zernike moments
- color texture
- pseudo zernike moments
- fourier descriptors
- moment invariants
- biomedical images
- frequency domain
- medical imaging
- polar coordinates
- fourier analysis
- magnetic resonance images
- color images
- image reconstruction
- affine invariant
- medical diagnosis
- mr images
- region of interest
- medical image segmentation
- rotation invariant
- invariant features
- signal processing
- ct images
- brain images
- affine transformation
- color space
- image normalization
- feature vectors
- multi modality
- orthogonal moments
- feature extraction
- medical image retrieval
- mri images
- shape descriptors
- basis functions
- log polar
- computer tomography
- spatial domain
- image processing
- watermarking algorithm