Joint space-frequency segmentation using balanced wavelet packet trees for least-cost image representation.
Cormac HerleyZixiang XiongKannan RamchandranMichael T. OrchardPublished in: IEEE Trans. Image Process. (1997)
Keyphrases
- image representation
- wavelet packet
- multiscale
- quadtree
- joint space
- filter bank
- wavelet transform
- image classification
- wavelet decomposition
- image content
- denoising
- image retrieval
- image features
- subband
- image segmentation
- translation invariant
- feature space
- natural images
- object recognition
- sparse coding
- image processing
- frequency band
- visual words
- tree structure
- image coding
- low frequency
- visual features
- degrees of freedom
- edge detection
- wavelet domain
- high frequency
- computer vision
- vector quantization