Multiple-kernel, multiple-instance similarity features for efficient visual object detection

Chensheng Sun, Kin Man Lam

Research output: Journal article publicationJournal articleAcademic researchpeer-review

11 Citations (Scopus)

Abstract

We propose to use the similarity between the sample instance and a number of exemplars as features in visual object detection. Concepts from multiple-kernel learning and multiple-instance learning are incorporated into our scheme at the feature level by properly calculating the similarity. The similarity between two instances can be measured by various metrics and by using the information from various sources, which mimics the use of multiple kernels for kernel machines. Pooling of the similarity values from multiple instances of an object part is introduced to cope with alignment inaccuracy between object instances. To deal with the high dimensionality of the multiple-kernel multiple-instance similarity feature, we propose a forward feature-selection technique and a coarse-to-fine learning scheme to find a set of good exemplars, hence we can produce an efficient classifier while maintaining a good performance. Both the feature and the learning technique have interesting properties. We demonstrate the performance of our method using both synthetic data and real-world visual object detection data sets.
Original languageEnglish
Article number6490054
Pages (from-to)3050-3061
Number of pages12
JournalIEEE Transactions on Image Processing
Volume22
Issue number8
DOIs
Publication statusPublished - 7 Jun 2013

Keywords

  • Multiple instance
  • multiple kernel
  • similarity feature
  • visual object detection

ASJC Scopus subject areas

  • Software
  • Computer Graphics and Computer-Aided Design

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