A Theory for Multiresolution Signal Decomposition: The Wavelet Representation
IEEE Transactions on Pattern Analysis and Machine Intelligence
A nonseparable VLSI architecture for two-dimensional discrete periodized wavelet transform
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
Facial feature extraction using complex dual-tree wavelet transform
Computer Vision and Image Understanding
Motion JPEG2000 coding scheme based on human visual system for digital cinema
PSIVT'06 Proceedings of the First Pacific Rim conference on Advances in Image and Video Technology
Analysis and VLSI architecture for 1-D and 2-D discrete wavelet transform
IEEE Transactions on Signal Processing
A novel VLSI architecture for multidimensional discrete wavelet transform
IEEE Transactions on Circuits and Systems for Video Technology
Bidirectional MC-EZBC with lifting implementation
IEEE Transactions on Circuits and Systems for Video Technology
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For visual processing applications, the two-dimensional (2-D) Discrete Wavelet Transform (DWT) can be used to decompose an image into four-subband images. However, when a single band is required for a specific application, the four-band decomposition demands a huge complexity and transpose time. This work presents a fast algorithm, namely 2-D Symmetric Mask-based Discrete Wavelet Transform (SMDWT), to address some critical issues of the 2-D DWT. Unlike the traditional DWT involving dependent decompositions, the SMDWT itself is subband processing independent, which can significantly reduce complexity. Moreover, DWT cannot directly obtain target subbands as mentioned, which leads to an extra wasting in transpose memory, critical path, and operation time. These problems can be fully improved with the proposed SMDWT. Nowadays, many applications employ DWT as the core transformation approach, the problems indicated above have motivated researchers to develop lower complexity schemes for DWT. The proposed SMDWT has been proved as a highly efficient and independent processing to yield target subbands, which can be applied to real-time visual applications, such as moving object detection and tracking, texture segmentation, image/video compression, and any possible DWT-based applications.