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Gradual improvement of image descriptor quality
KTH, Skolan för bioteknologi (BIO), Genteknologi.
KTH, Skolan för datavetenskap och kommunikation (CSC), Datorseende och robotik, CVAP. (Computer Vision and Active Perception (CVAP) Lab)
KTH, Skolan för datavetenskap och kommunikation (CSC), Datorseende och robotik, CVAP.
2014 (Engelska)Ingår i: ICPRAM 2014 - Proceedings of the 3rd International Conference on Pattern Recognition Applications and Methods, 2014, s. 233-238Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

In this paper, we propose a framework for gradually improving the quality of an already existing image descriptor. The descriptor used in this paper (Afkham et al., 2013) uses the response of a series of discriminative components for summarizing each image. As we will show, this descriptor has an ideal form in which all categories become linearly separable. While, reaching this form is not feasible, we will argue how by replacing a small fraction of these components, it is possible to obtain a descriptor which is, on average, closer to this ideal form. To do so, we initially identify which components do not contribute to the quality of the descriptor and replace them with more robust components. Here, a joint feature selection method is used to find improved components. As our experiments show, this change directly reflects in the capability of the resulting descriptor in discriminating between different categories.

Ort, förlag, år, upplaga, sidor
2014. s. 233-238
Nyckelord [en]
Image classification, Image summarization, Pattern recognition, Descriptors, Discriminative components, Feature selection methods, Image Descriptor, Linearly separable
Nationell ämneskategori
Medicinsk bildbehandling
Identifikatorer
URN: urn:nbn:se:kth:diva-167883Scopus ID: 2-s2.0-84902324393ISBN: 9789897580185 (tryckt)OAI: oai:DiVA.org:kth-167883DiVA, id: diva2:821202
Konferens
3rd International Conference on Pattern Recognition Applications and Methods, ICPRAM 2014, 6 March 2014 through 8 March 2014, Angers, Loire Valley
Anmärkning

QC 20150615

Tillgänglig från: 2015-06-15 Skapad: 2015-05-22 Senast uppdaterad: 2015-06-15Bibliografiskt granskad

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Av författaren/redaktören
Afkham, Heydar MaboudiEk, Carl HenrikCarlsson, Stefan
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GenteknologiDatorseende och robotik, CVAP
Medicinsk bildbehandling

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