A PERFORMANCE EVALUATION OF LOCAL DESCRIPTORS

A PERFORMANCE EVALUATION OF LOCAL DESCRIPTORS (2005)

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by Krystian Mikolajczyk , Cordelia Schmid

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Datum	Value	Source
TITLE	A PERFORMANCE EVALUATION OF LOCAL DESCRIPTORS	user correction
AUTHOR NAME	Krystian Mikolajczyk	user correction
AUTHOR AFFIL	Dept. of Engineering Science INRIA Rhône-Alpes; University of Oxford 655, av. de l’Europe	user correction
AUTHOR ADDR	Oxford, OX1 3PJ 38330 Montbonnot; United Kingdom France	user correction
AUTHOR NAME	Cordelia Schmid	user correction
AUTHOR AFFIL	Dept. of Engineering Science INRIA Rhône-Alpes; University of Oxford 655, av. de l’Europe	user correction
AUTHOR ADDR	Oxford, OX1 3PJ 38330 Montbonnot; United Kingdom France	user correction
ABSTRACT	In this paper we compare the performance of descriptors computed for local interest regions, as for example extracted by the Harris-Affine detector [32]. Many different descriptors have been proposed in the literature. However, it is unclear which descriptors are more appropriate and how their performance depends on the interest region detector. The descriptors should be distinctive and at the same time robust to changes in viewing conditions as well as to errors of the detector. Our evaluation uses as criterion recall with respect to precision and is carried out for different image transformations. We compare shape context [3], steerable filters [12], PCA-SIFT [19], differential invariants [20], spin images [21], SIFT [26], complex filters [37], moment invariants [43], and cross-correlation for different types of interest regions. We also propose an extension of the SIFT descriptor, and show that it outperforms the original method. Furthermore, we observe that the ranking of the descriptors is mostly independent of the interest region detector and that the SIFT based descriptors perform best. Moments and steerable filters show the best performance among the low dimensional descriptors.	SVM HeaderParse 0.2
YEAR	2005	SVM HeaderParse 0.2
CITATIONS	45 found	ParsCit 1.0