The invariance properties of chromatic characteristics

Yun Chung Chung; Shyang Lih Chang; Shen Cherng; Sei Wang Chen

doi:10.1007/11949534_13

The invariance properties of chromatic characteristics

Yun Chung Chung^*, Shyang Lih Chang, Shen Cherng, Sei Wang Chen

^*Corresponding author for this work

Department of Computer Science and Information Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

Abstract

An approach to analyzing the degrees of invariance of chromatic characteristics is proposed in this paper. In many vision applications, it is desirable that the chromatic characteristics of objects in images taken under different lighting conditions could remain constant. However, the invariance properties of chromatic characteristics are subject to the lighting conditions. In order to be able to apply to dynamic scenes, we consider three fundamental lighting sources: diffuse, ambient, and directed lightings. Any illumination condition can be approximated as a combination of the three lighting sources. The proposed degree of chromatic invariance is defined based on the chromatic characteristic behaviors under different illumination conditions. A lot of image samples under different illumination conditions are utilized, and from experimental results, we conclude that chromatic characteristics {H, C, C _λ} are most stable and suitable for the vision applications.

Original language	English
Title of host publication	Advances in Image and Video Technology - First Pacific Rim Symposium, PSIVT 2006, Proceedings
Publisher	Springer Verlag
Pages	128-137
Number of pages	10
ISBN (Print)	354068297X, 9783540682974
DOIs	https://doi.org/10.1007/11949534_13
Publication status	Published - 2006
Event	1st Pacific Rim Symposium on Image and Video Technology, PSIVT 2006 - Hsinchu, Taiwan Duration: 2006 Dec 10 → 2006 Dec 13

Publication series

Name	Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume	4319 LNCS
ISSN (Print)	0302-9743
ISSN (Electronic)	1611-3349

Other

Other	1st Pacific Rim Symposium on Image and Video Technology, PSIVT 2006
Country/Territory	Taiwan
City	Hsinchu
Period	2006/12/10 → 2006/12/13

Keywords

Chromatic characteristic invariant
Degree of chromatic invariance
Photometric reflectance model

ASJC Scopus subject areas

Theoretical Computer Science
Computer Science(all)

Access to Document

10.1007/11949534_13

Cite this

Chung, Y. C., Chang, S. L., Cherng, S., & Chen, S. W. (2006). The invariance properties of chromatic characteristics. In Advances in Image and Video Technology - First Pacific Rim Symposium, PSIVT 2006, Proceedings (pp. 128-137). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 4319 LNCS). Springer Verlag. https://doi.org/10.1007/11949534_13

The invariance properties of chromatic characteristics. / Chung, Yun Chung; Chang, Shyang Lih; Cherng, Shen et al.
Advances in Image and Video Technology - First Pacific Rim Symposium, PSIVT 2006, Proceedings. Springer Verlag, 2006. p. 128-137 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 4319 LNCS).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Chung, YC, Chang, SL, Cherng, S & Chen, SW 2006, The invariance properties of chromatic characteristics. in Advances in Image and Video Technology - First Pacific Rim Symposium, PSIVT 2006, Proceedings. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), vol. 4319 LNCS, Springer Verlag, pp. 128-137, 1st Pacific Rim Symposium on Image and Video Technology, PSIVT 2006, Hsinchu, Taiwan, 2006/12/10. https://doi.org/10.1007/11949534_13

Chung YC, Chang SL, Cherng S, Chen SW. The invariance properties of chromatic characteristics. In Advances in Image and Video Technology - First Pacific Rim Symposium, PSIVT 2006, Proceedings. Springer Verlag. 2006. p. 128-137. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)). doi: 10.1007/11949534_13

Chung, Yun Chung ; Chang, Shyang Lih ; Cherng, Shen et al. / The invariance properties of chromatic characteristics. Advances in Image and Video Technology - First Pacific Rim Symposium, PSIVT 2006, Proceedings. Springer Verlag, 2006. pp. 128-137 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)).

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AB - An approach to analyzing the degrees of invariance of chromatic characteristics is proposed in this paper. In many vision applications, it is desirable that the chromatic characteristics of objects in images taken under different lighting conditions could remain constant. However, the invariance properties of chromatic characteristics are subject to the lighting conditions. In order to be able to apply to dynamic scenes, we consider three fundamental lighting sources: diffuse, ambient, and directed lightings. Any illumination condition can be approximated as a combination of the three lighting sources. The proposed degree of chromatic invariance is defined based on the chromatic characteristic behaviors under different illumination conditions. A lot of image samples under different illumination conditions are utilized, and from experimental results, we conclude that chromatic characteristics {H, C, C λ} are most stable and suitable for the vision applications.

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The invariance properties of chromatic characteristics

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Keywords

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