Block-based frequency scalable technique for efficient hierarchical coding

  title={Block-based frequency scalable technique for efficient hierarchical coding},
  author={Jooheung Lee and Narayanan Vijaykrishnan and Mary Jane Irwin and Rajarathnam Chandramouli},
  journal={IEEE Transactions on Signal Processing},
In this paper, we propose a block-based frequency scalable technique for efficient hierarchical coding. The proposed technique divides an image into its multiple resolution versions, based on the spectral properties of discrete cosine transform (DCT) kernels. We present that spectral decomposition, downsampling, and DCT operations are performed effectively over input DCT coefficients of one-dimensional (1-D) and two-dimensional (2-D) signals by using the proposed transform matrices. The… 

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