IEICE - Transactions on Information and Systems
Multiresolution image representation using combined 2-D and 1-D directional filter banks
IEEE Transactions on Image Processing
Generalized lifting with adaptive local PDF estimation for image coding
PCS'09 Proceedings of the 27th conference on Picture Coding Symposium
Highpass-filtering based adaptive directional wavelet transform
PCS'09 Proceedings of the 27th conference on Picture Coding Symposium
AMT '09 Proceedings of the 5th International Conference on Active Media Technology
Photorealistic Geometry Image Coding Based on Directional Lifting Wavelet Transform
PCM '09 Proceedings of the 10th Pacific Rim Conference on Multimedia: Advances in Multimedia Information Processing
Directional filtering transform
ICME'09 Proceedings of the 2009 IEEE international conference on Multimedia and Expo
Tetrolet transform: A new adaptive Haar wavelet algorithm for sparse image representation
Journal of Visual Communication and Image Representation
Adaptive directional wavelet transform using pre-directional filtering
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
Direction-adaptive context modeling for sign coding in embedded wavelet image coder
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
Rate distortion optimized curve determination for curved wavelet image coding
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
Two-dimensional geometric lifting
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
Adaptive directional wavelet transform based on directional prefiltering
IEEE Transactions on Image Processing
Compress compound images in H.264/MPGE-4 AVC by exploiting spatial correlation
IEEE Transactions on Image Processing
Directional lapped transforms for image coding
IEEE Transactions on Image Processing
Image enhancement via space-adaptive lifting scheme exploiting subband dependency
Digital Signal Processing
Adaptive 2-D wavelet transform based on the lifting scheme with preserved vanishing moments
IEEE Transactions on Image Processing
Direction-adaptive partitioned block transform for color image coding
IEEE Transactions on Image Processing
Morphological dilation image coding with context weights prediction
Image Communication
Directional filtering transform for image/intra-frame compression
IEEE Transactions on Image Processing
A reduced-complexity image coding scheme using decision-directed wavelet-based contourlet transform
Journal of Visual Communication and Image Representation
Hi-index | 0.01 |
We present a novel 2-D wavelet transform scheme of adaptive directional lifting (ADL) in image coding. Instead of alternately applying horizontal and vertical lifting, as in present practice, ADL performs lifting-based prediction in local windows in the direction of high pixel correlation. Hence, it adapts far better to the image orientation features in local windows. The ADL transform is achieved by existing 1-D wavelets and is seamlessly integrated into the global wavelet transform. The predicting and updating signals of ADL can be derived even at the fractional pixel precision level to achieve high directional resolution, while still maintaining perfect reconstruction. To enhance the ADL performance, a rate-distortion optimized directional segmentation scheme is also proposed to form and code a hierarchical image partition adapting to local features. Experimental results show that the proposed ADL-based image coding technique outperforms JPEG 2000 in both PSNR and visual quality, with the improvement up to 2.0 dB on images with rich orientation features