Robust image hashing using SIFT feature points and DWT approximation coefficients.
Lokanadham Naidu VadlamudiRama Prasad V. VaddellaVasumathi DevaraPublished in: ICT Express (2018)
Keyphrases
- feature points
- scale invariant feature transform
- feature descriptors
- feature matching
- image sequences
- affine distortion
- point correspondences
- epipolar geometry
- image features
- keypoints
- affine transformation
- feature point matching
- pose estimation
- image matching
- coordinate frame
- image watermarking
- wavelet coefficients
- face images
- feature detectors
- corner points
- sift descriptors
- multiscale
- object recognition
- input image
- facial feature points
- multiresolution
- bag of features
- camera motion
- harris corner detector
- training data
- similarity measure
- camera pose
- image descriptors
- watermarking algorithm
- image pixels
- discrete wavelet transform
- image retrieval
- facial features
- matching algorithm