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» Directional Discrete Cosine Transforms for Image Coding
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DCC
2010
IEEE
14 years 1 months ago
Subsampling-Adaptive Directional Wavelet Transform for Image Coding
In lifting-based directional wavelet transforms, different subsampling patterns may show significant difference for directional signals in image coding. This paper investigates t...
Jizheng Xu, Feng Wu
ICIP
2007
IEEE
14 years 1 months ago
Lifting-Based Directional DCT-Like Transform for Image Coding
Traditional 2D DCT implemented by separable 1D transform in horizontal and vertical directions does not take image orientation features in a local window into account. To improve ...
Hao Xu, Jizheng Xu, Feng Wu
TIP
2010
144views more  TIP 2010»
13 years 1 months ago
Direction-Adaptive Partitioned Block Transform for Color Image Coding
- In this report, we investigate the application of Direction Adaptive-Partitioned Block Transform (DA-PBT) to color images and propose a basic framework for DA-PBT Color Image Cod...
Chuo-Ling Chang, Mina Makar, Sam S. Tsai, Bernd Gi...
ISCAS
2008
IEEE
178views Hardware» more  ISCAS 2008»
14 years 1 months ago
3-D direction aligned wavelet transform for scalable video coding
— This paper presents a novel 3-D direction aligned wavelet transform for scalable video coding. A new generalized 3D directional threading technique is seamlessly incorporated i...
Yu Liu, King Ngi Ngan, Feng Wu
MEDIAFORENSICS
2010
13 years 5 months ago
Image dependent log-likelihood ratio allocation for repeat accumulate code-based decoding in data hiding channels
Error correction codes of suitable redundancy are used for ensuring perfect data recovery in noisy channels. For iterative decoding based methods, the decoder needs to be initiali...
Anindya Sarkar, B. S. Manjunath