Skip to Main content Skip to Navigation
Journal articles

Robust photometric invariant features from the color tensor

Joost van de Weijer 1 Theo Gevers 2 Arnold Smeulders 3
1 LEAR - Learning and recognition in vision
GRAVIR - IMAG - Laboratoire d'informatique GRAphique, VIsion et Robotique de Grenoble, Inria Grenoble - Rhône-Alpes, CNRS - Centre National de la Recherche Scientifique : FR71
Abstract : Luminance-based features are widely used as low-level input for computer vision applications, even when color data is available. The extension of feature detection to the color domain prevents information loss due to isoluminance and allows us to exploit the photometric information. To fully exploit the extra information in the color data, the vector nature of color data has to be taken into account and a sound framework is needed to combine feature and photometric invariance theory. In this paper, we focus on the structure tensor, or color tensor, which adequately handles the vector nature of color images. Further, we combine the features based on the color tensor with photometric invariant derivatives to arrive at photometric invariant features. We circumvent the drawback of unstable photometric invariants by deriving an uncertainty measure to accompany the photometric invariant derivatives. The uncertainty is incorporated in the color tensor, hereby allowing the computation of robust photometric invariant features. The combination of the photometric invariance theory and tensor-based features allows for detection of a variety of features such as photometric invariant edges, corners, optical flow, and curvature. The proposed features are tested for noise characteristics and robustness to photometric changes. Experiments show that the proposed features are robust to scene incidental events and that the proposed uncertainty measure improves the applicability of full invariants.
Document type :
Journal articles
Complete list of metadata

Cited literature [27 references]  Display  Hide  Download

https://hal.inria.fr/inria-00548599
Contributor : Thoth Team <>
Submitted on : Thursday, January 6, 2011 - 10:38:04 AM
Last modification on : Monday, December 28, 2020 - 3:44:02 PM
Long-term archiving on: : Thursday, April 7, 2011 - 2:34:31 AM

File

TensorColorIP-2.pdf
Files produced by the author(s)

Identifiers

Collections

IMAG | CNRS | INRIA | UGA

Citation

Joost van de Weijer, Theo Gevers, Arnold Smeulders. Robust photometric invariant features from the color tensor. IEEE Transactions on Image Processing, Institute of Electrical and Electronics Engineers, 2006, 15 (1), pp.118--127. ⟨10.1109/TIP.2005.860343⟩. ⟨inria-00548599⟩

Share

Metrics

Record views

436

Files downloads

808