A lie group approach to steerable filters
Pattern Recognition Letters
Design of Multiparameter Steerable Functions Using Cascade Basis Reduction
IEEE Transactions on Pattern Analysis and Machine Intelligence
Deformable Kernels for Early Vision
IEEE Transactions on Pattern Analysis and Machine Intelligence
A study on medical image registration by mutual information with pyramid data structure
Computers in Biology and Medicine
Measuring Translation Shiftability of Frames
Computers & Mathematics with Applications
Fast and active texture segmentation based on orientation and local variance
Journal of Visual Communication and Image Representation
Evaluation of the effects of Gabor filter parameters on texture classification
Pattern Recognition
An edge detection approach based on directional wavelet transform
Computers & Mathematics with Applications
Image denoising in steerable pyramid domain based on a local Laplace prior
Pattern Recognition
Image fusion based on a new contourlet packet
Information Fusion
Tools for application-driven linear dimension reduction
Neurocomputing
A compact harmonic code for early vision based on anisotropic frequency channels
Computer Vision and Image Understanding
A new wavelet-based fuzzy single and multi-channel image denoising
Image and Vision Computing
A feature level multimodal approach for palmprint identification using directional subband energies
Journal of Network and Computer Applications
Perceptual visual quality metrics: A survey
Journal of Visual Communication and Image Representation
A differential model of the complex cell
Neural Computation
The chordlet transform with an application to shape compression
Image Communication
Expert Systems with Applications: An International Journal
Artificial Intelligence in Medicine
Shift-invariant texture retrieval using P- contourlet
Proceedings of the International Conference on Advances in Computing, Communications and Informatics
Pattern classification of dermoscopy images: A perceptually uniform model
Pattern Recognition
Texture transfer using geometry correlation
EGSR'06 Proceedings of the 17th Eurographics conference on Rendering Techniques
Bi-hierarchy medical image registration based on steerable pyramid transform
LSMS'07 Proceedings of the 2007 international conference on Life System Modeling and Simulation
Face recognition by curvelet based feature extraction
ICIAR'07 Proceedings of the 4th international conference on Image Analysis and Recognition
Multiscale texture segmentation via a contourlet contextual hidden Markov model
Digital Signal Processing
Phase-based video motion processing
ACM Transactions on Graphics (TOG) - SIGGRAPH 2013 Conference Proceedings
Manifold based sparse representation for facial understanding in natural images
Image and Vision Computing
Joint view expansion and filtering for automultiscopic 3D displays
ACM Transactions on Graphics (TOG)
Hi-index | 0.00 |
One of the major drawbacks of orthogonal wavelet transforms is their lack of translation invariance: the content of wavelet subbands is unstable under translations of the input signal. Wavelet transforms are also unstable with respect to dilations of the input signal and, in two dimensions, rotations of the input signal. The authors formalize these problems by defining a type of translation invariance called shiftability. In the spatial domain, shiftability corresponds to a lack of aliasing; thus, the conditions under which the property holds are specified by the sampling theorem. Shiftability may also be applied in the context of other domains, particularly orientation and scale. Jointly shiftable transforms that are simultaneously shiftable in more than one domain are explored. Two examples of jointly shiftable transforms are designed and implemented: a 1-D transform that is jointly shiftable in position and scale, and a 2-D transform that is jointly shiftable in position and orientation. The usefulness of these image representations for scale-space analysis, stereo disparity measurement, and image enhancement is demonstrated