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Cited by 657

The DOI matches its Crossref record; 25 of the 25 references it cites were found in a registry or an index.

On the removal of shadows from images

Finlayson, G.D., Hordley, S.D., Cheng Lu, Drew, M.S.·2006·IEEE Transactions on Pattern Analysis and Machine Intelligence
DOI 10.1109/tpami.2006.18
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Abstract

This paper is concerned with the derivation of a progression of shadow-free image representations. First, we show that adopting certain assumptions about lights and cameras leads to a 1D, gray-scale image representation which is illuminant invariant at each image pixel. We show that as a consequence, images represented in this form are shadow-free. We then extend this 1D representation to an equivalent 2D, chromaticity representation. We show that in this 2D representation, it is possible to relight all the image pixels in the same way, effectively deriving a 2D image representation which is additionally shadow-free. Finally, we show how to recover a 3D, full color shadow-free image representation by first (with the help of the 2D representation) identifying shadow edges. We then remove shadow edges from the edge-map of the original image by edge in-painting and we propose a method to reintegrate this thresholded edge map, thus deriving the sought-after 3D shadow-free image.

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Metadata

Authors
Finlayson, G. D., Hordley, S. D., Lu, C., & Drew, M. S.
Venue
IEEE Transactions on Pattern Analysis and Machine Intelligence
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Published
2006-01
Volume
28
Issue
1
Pages
59-68
ISSN
0162-8828 (ISSN-L)
DOI
10.1109/tpami.2006.18
OpenAlex
W2166502676
Cited by
657
References
25
FWCI
27.44
Type
journal article
Language
en
Open access
closed

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