Multispectral images fusion by a joint multidirectional and multiresolution representation
International Journal of Remote Sensing
Vessel enhancement filter using directional filter bank
Computer Vision and Image Understanding
Implementational aspects of the contourlet filter bank and application in image coding
EURASIP Journal on Advances in Signal Processing
Multiresolution image representation using combined 2-D and 1-D directional filter banks
IEEE Transactions on Image Processing
Robust iris recognition algorithm for non-cooperative environment
International Journal of Biometrics
Highpass-filtering based adaptive directional wavelet transform
PCS'09 Proceedings of the 27th conference on Picture Coding Symposium
A Class of Non-redundant Directional Filter Banks
PCM '09 Proceedings of the 10th Pacific Rim Conference on Multimedia: Advances in Multimedia Information Processing
Design of directional filter banks with arbitrary number of subbands
IEEE Transactions on Signal Processing
Adaptive directional wavelet transform based on directional prefiltering
IEEE Transactions on Image Processing
A human gait classification method based on radar Doppler spectrograms
EURASIP Journal on Advances in Signal Processing - Special issue on applications of time-frequency signal processing in wireless communications and bioengineering
Extracting and combining multimodal directional iris features
ICB'06 Proceedings of the 2006 international conference on Advances in Biometrics
Directional two-dimensional principal component analysis for face recognition
Proceedings of the 4th International Conference on Uniquitous Information Management and Communication
Directional discriminant analysis based on nearest feature line
ACIIDS'12 Proceedings of the 4th Asian conference on Intelligent Information and Database Systems - Volume Part II
Future Generation Computer Systems
Parallel adaptive sampling and reconstruction using multi-scale and directional analysis
The Visual Computer: International Journal of Computer Graphics
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This paper introduces an improved structure for directional filter banks (DFBs) that preserves the visual information in the subband domain. The new structure achieves this outcome while preserving both the efficient polyphase implementation and the exact reconstruction property. The paper outlines a step-by-step framework in which to examine the DFB, and within this framework discusses how, through the insertion of post-sampling matrices, visual distortions can be removed. In addition to the efficient tree structure, attention is given to the form and design of efficient linear phase filters. Most notably, linear phase IIR prototype filters are presented, together with the design details. These filters can enable the DFB to have more than a three-fold improvement in complexity reduction over quadrature mirror filters (QMFs).