Matching points between multiple images of a scene is a vital component of many computer vision tasks. Point matching involves creating a succinct and discriminative descriptor for each point. While current descriptors such as SIFT can find matches between features with unique local neighborhoods, these descriptors typically fail to consider global context to resolve ambiguities that can occur locally when an image has multiple similar regions. This paper presents a feature descriptor that augments SIFT with a global context vector that adds curvilinear shape information from a much larger neighborhood, thus reducing mismatches when multiple local descriptors are similar. It also provides a more robust method for handling 2D nonrigid transformations since points are more effectively matched individually at a global scale rather than constraining multiple matched points to be mapped via a planar homography. We have tested our technique on various images and compare matching accuracy between the SIFT descriptor with global context to that without.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    A SIFT descriptor with global context


    Beteiligte:
    Mortensen, E.N. (Autor:in) / Hongli Deng, (Autor:in) / Shapiro, L. (Autor:in)


    Erscheinungsdatum :

    01.01.2005


    Format / Umfang :

    2353751 byte





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Rotation and affine-invariant SIFT descriptor for matching UAV images with satellite images

    Zheng, Mingguo / Wu, Chengdong / Chen, Dongyue et al. | IEEE | 2014


    Velocity Estimation Using an Improved Image Local Feature Representation with Enhanced SIFT Descriptor for Mobility

    Dilmi, Wissem / El Ferik, Sami / Saif, Abdulwahid Abdulaziz et al. | Elsevier | 2025

    Freier Zugriff

    Better than SIFT?

    Khan, N. | British Library Online Contents | 2015


    Keypoint descriptor matching with context-based orientation estimation

    Bellavia, F. / Tegolo, D. / Valenti, C. | British Library Online Contents | 2014


    Fast Approximated SIFT

    Grabner, M. / Grabner, H. / Bischof, H. | British Library Conference Proceedings | 2006