Abstract
Context information is important in object representation. By embedding context cue of image attributes into kernel descriptors, we propose a set of novel kernel descriptors called Context Kernel Descriptors (CKD) for object classification and detection. The motivation of CKD is to use spatial consistency of image attributes or features defined within a neighboring region to improve the robustness of descriptor matching in kernel space. For feature selection, Kernel Entropy Component Analysis (KECA) is exploited to learn a subset of discriminative CKD. Different from Kernel Principal Component Analysis (KPCA) that only keeps features contributing mostly to image reconstruction, KECA selects the CKD that contribute mostly to the Rényi entropy of the image. These CKD are discriminative as they relate to the density distribution of the histogram of image attributes. We report superior performance of CKD for object classification on the CIFAR-10 dataset, and for detection on a challenging chicken feet dataset.
Original language | English |
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Title of host publication | Progress in Pattern Recognition, Image Analysis, Computer Vision, and Applications : 19th Iberoamerican Congress, CIARP 2014, Puerto Vallarta, Mexico, November 2-5, 2014. Proceedings |
Editors | Eduardo Bayro-Corrochano, Edwin Hancock |
Number of pages | 9 |
Publication date | 2014 |
Pages | 827-835 |
ISBN (Print) | 978-3-319-12567-1 |
DOIs | |
Publication status | Published - 2014 |
Event | Iberoamerican Congress 2014 - Puerto Vallarta, Mexico Duration: 2 Nov 2014 → 5 Nov 2014 Conference number: 19 |
Conference
Conference | Iberoamerican Congress 2014 |
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Number | 19 |
Country/Territory | Mexico |
City | Puerto Vallarta |
Period | 02/11/2014 → 05/11/2014 |
Series | Lecture notes in computer science |
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Volume | 8827 |
ISSN | 0302-9743 |
Keywords
- Faculty of Science
- Object classification and detection, Feature selection, Kernel descriptors, Kernel entropy component analysis