Learned ISTA with Error-Based Thresholding for Adaptive Sparse Coding.

Ziang Li Kailun Wu Yiwen Guo Changshui Zhang

Published in: ICASSP (2024)

Keyphrases

sparse coding
dictionary learning
natural images
sparse representation
reconstruction error
linear combination
image classification

unsupervised learning
image representation
discriminative power
generative model
single image super resolution
object category recognition
group sparsity

person re identification
image patches
edge detection
denoising
feature space
multiscale
sparse codes

image segmentation
signal processing
generalization error
image features
visual words
bag of words
data sets