Skip to main content
Log in

Convex hull-based distance metric learning for image classification

  • Published:
Computational and Applied Mathematics Aims and scope Submit manuscript

Abstract

Distance metric learning is an important topic in visual classification tasks. Learning an appropriate distance measure can greatly improve the performance of image recognitions. In this paper, we model an image set as a regularized convex hull and propose a distance metric learning method for image classification based on regularized convex hulls. In particular, a regularized point-to-convex hull distance metric (RPCHD) and a regularized convex hull-to-convex hull distance metric (RCHCHD) are introduced to measure the distance between the query image object and the existing image sets for image classification tasks. The coefficients in distance metric are solved by an approximate optimization strategy. Two SVM-like distance metric learning models are constructed and transformed into the standard support vector machines to learn distance metric matrix in RPCHD and RCHCHD. Positive and negative sample pairs are proposed to represent distance metric matrix. Experiments on three image databases show that our proposed RPCHD and RCHCHD can effectively improve the performance of image classification.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3

Similar content being viewed by others

References

Download references

Acknowledgements

This work was supported by the National Natural Science Foundation of China under Grants 61976027 and 61572082, and the Natural Science Foundation of Liaoning Province (20170540012, 20170540004).

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Changzhong Wang.

Additional information

Communicated by Rosana Sueli da Motta Jafelice.

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Zhang, X., Wang, C. & Fan, X. Convex hull-based distance metric learning for image classification. Comp. Appl. Math. 40, 113 (2021). https://doi.org/10.1007/s40314-021-01482-x

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s40314-021-01482-x

Keywords

Mathematics Subject Classification

Navigation