The aim of this paper is to find the best representation for the appearance of surfaces with Lambertian reflectance under varying illumination. Previous work using principal component analysis (PCA) found the best sub-space to represent all images of an object under a varying point light source. We extend this to images from any illumination distribution. Specifically we calculate the bases for all configurations of a point plus ambient light source and two point light sources, as well as from a database of captured real world illumination. We also reformulate the optimization criterion used in PCA. The resulting basis, we believe has higher representability and is better for analyzing images of shaded objects. The different bases are compared on a database of images to test the representability.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Low-dimensional representations of shaded surfaces under varying illumination


    Contributors:


    Publication date :

    2003-01-01


    Size :

    375963 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Low-Dimensional Representations of Shaded Surfaces under Varying Illumination

    Nillius, P. / Eklundh, J.-O. / IEEE | British Library Conference Proceedings | 2003


    3-D Reconstruction of Shaded Objects from Multiple Images Under Unknown Illumination

    Jin, H. / Cremers, D. / Wang, D. et al. | British Library Online Contents | 2008


    A solution to illumination direction estimation of a shaded image: Genetic algorithm

    Chow, C. K. / Yuen, S. Y. | British Library Online Contents | 2010


    Color Constancy under Varying Illumination

    Finlayson, G. / Funt, B. / Barnard, K. et al. | British Library Conference Proceedings | 1995


    Robust motion estimation under varying illumination

    Kim, Y. H. / Martinez, A. M. / Kak, A. C. | British Library Online Contents | 2005