Image classification: A hierarchical dictionary learning approach

Shahin Mahdizadehaghdam; Liyi Dai; Hamid Krim; Erik Skau; Han Wang

ICASSP 2017accepted0 citations

Image classification: A hierarchical dictionary learning approach

Shahin Mahdizadehaghdam, Liyi Dai, Hamid Krim, Erik Skau, Han Wang

Abstract

Hierarchical dictionary learning seeks multiple dictionaries at different image scales to capture complementary coherent characteristics. We propose a method to learn a hierarchy of two overcomplete synthesis dictionaries with an image classification goal. The classification objective in some sense regularizes the joint optimization of the hierarchical dictionaries and injects refinement feedback. The validation of the proposed approach is based on its classification performance using two well-known data sets.

BibTeX

@inproceedings{icassp2017_imageclassificat,
  title = {Image classification: A hierarchical dictionary learning approach},
  author = {Shahin Mahdizadehaghdam and Liyi Dai and Hamid Krim and Erik Skau and Han Wang},
  booktitle = {ICASSP 2017},
  year = {2017}
}