Visual feature coding for image classification integrating dictionary structure

作者：

Highlights：

• We propose a feature coding method integrating density structure within the dictionary.

• An approximating solution by finding k-dense neighbors of local feature is developed.

• The proposed coding strategy well preserves both locality and sparsity.

• The proposed coding strategy improves the dictionary with an online learning scheme.

摘要

Highlights•We propose a feature coding method integrating density structure within the dictionary.•An approximating solution by finding k-dense neighbors of local feature is developed.•The proposed coding strategy well preserves both locality and sparsity.•The proposed coding strategy improves the dictionary with an online learning scheme.

论文关键词：Visual feature coding,Dictionary learning,k-dense neighbors,Image classification

论文评审过程：Received 30 September 2014, Revised 7 February 2015, Accepted 15 March 2015, Available online 27 March 2015, Version of Record 17 June 2015.

论文官网地址：https://doi.org/10.1016/j.patcog.2015.03.012