Research

Multi-Image Matching Using Multi-Scale Oriented Patches


Reference:

Brown, M., Szeliski, R. and Winder, S., 2005. Multi-Image Matching Using Multi-Scale Oriented Patches. In: CVPR 2005: IEEE Computer Society Conference on Computer Vision and Pattern Recognition, 2005, 2005-06-20 - 2005-06-25, San Diego.

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Official URL:

http://dx.doi.org/10.1109/CVPR.2005.235

Abstract

This paper describes a novel multi-view matching framework based on a new type of invariant feature. Our features are located at Harris corners in discrete scale-space and oriented using a blurred local gradient. This defines a rotationally invariant frame in which we sample a feature descriptor, which consists of an 8 × 8 patch of bias/gain normalised intensity values. The density of features in the image is controlled using a novel adaptive non-maximal suppression algorithm, which gives a better spatial distribution of features than previous approaches. Matching is achieved using a fast nearest neighbour algorithm that indexes features based on their low frequency Haar wavelet coefficients. We also introduce a novel outlier rejection procedure that verifies a pairwise feature match based on a background distribution of incorrect feature matches. Feature matches are refined using RANSAC and used in an automatic 2D panorama stitcher that has been extensively tested on hundreds of sample inputs.

Details

Item Type Conference or Workshop Items (Paper)
CreatorsBrown, M., Szeliski, R. and Winder, S.
DOI10.1109/CVPR.2005.235
DepartmentsFaculty of Science > Computer Science
RefereedYes
StatusPublished
ID Code26123

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