Invariant representation for spectral reflectance images and its application
<p>Abstract</p> <p>Spectral images as well as color images observed from object surfaces are much influenced by various illumination conditions such as shading and specular highlight. Several invariant representations were proposed for these conditions using the standard dichromati...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2011-01-01
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| Series: | EURASIP Journal on Image and Video Processing |
| Subjects: | |
| Online Access: | http://jivp.eurasipjournals.com/content/2011/1/2 |
| _version_ | 1828814386164137984 |
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| author | Ibrahim Abdelhameed Tominaga Shoji Horiuchi Takahiko |
| author_facet | Ibrahim Abdelhameed Tominaga Shoji Horiuchi Takahiko |
| author_sort | Ibrahim Abdelhameed |
| collection | DOAJ |
| description | <p>Abstract</p> <p>Spectral images as well as color images observed from object surfaces are much influenced by various illumination conditions such as shading and specular highlight. Several invariant representations were proposed for these conditions using the standard dichromatic reflection model of dielectric materials. However, these representations are inadequate for other materials like metal. This article proposes an invariant representation that is derived from the standard dichromatic reflection model for dielectric and the extended dichromatic reflection model for metal. We show that a normalized surface-spectral reflectance by the minimum reflectance is invariant to highlights, shading, surface geometry, and illumination intensity. Here the illumination spectrum and the spectral sensitivity functions of the imaging system are measured in a separate way. As an application of the proposed invariant representation, a segmentation algorithm based on the proposed representation is presented for effectively segmenting spectral images of natural scenes and bare circuit boards.</p> |
| first_indexed | 2024-12-12T10:21:54Z |
| format | Article |
| id | doaj.art-a0419481118445a181c84ce15bd8d4cc |
| institution | Directory Open Access Journal |
| issn | 1687-5176 1687-5281 |
| language | English |
| last_indexed | 2024-12-12T10:21:54Z |
| publishDate | 2011-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | EURASIP Journal on Image and Video Processing |
| spelling | doaj.art-a0419481118445a181c84ce15bd8d4cc2022-12-22T00:27:32ZengSpringerOpenEURASIP Journal on Image and Video Processing1687-51761687-52812011-01-01201112Invariant representation for spectral reflectance images and its applicationIbrahim AbdelhameedTominaga ShojiHoriuchi Takahiko<p>Abstract</p> <p>Spectral images as well as color images observed from object surfaces are much influenced by various illumination conditions such as shading and specular highlight. Several invariant representations were proposed for these conditions using the standard dichromatic reflection model of dielectric materials. However, these representations are inadequate for other materials like metal. This article proposes an invariant representation that is derived from the standard dichromatic reflection model for dielectric and the extended dichromatic reflection model for metal. We show that a normalized surface-spectral reflectance by the minimum reflectance is invariant to highlights, shading, surface geometry, and illumination intensity. Here the illumination spectrum and the spectral sensitivity functions of the imaging system are measured in a separate way. As an application of the proposed invariant representation, a segmentation algorithm based on the proposed representation is presented for effectively segmenting spectral images of natural scenes and bare circuit boards.</p>http://jivp.eurasipjournals.com/content/2011/1/2Invariant representationdichromatic reflection modelsspectral imaging systemspectral image segmentation |
| spellingShingle | Ibrahim Abdelhameed Tominaga Shoji Horiuchi Takahiko Invariant representation for spectral reflectance images and its application EURASIP Journal on Image and Video Processing Invariant representation dichromatic reflection models spectral imaging system spectral image segmentation |
| title | Invariant representation for spectral reflectance images and its application |
| title_full | Invariant representation for spectral reflectance images and its application |
| title_fullStr | Invariant representation for spectral reflectance images and its application |
| title_full_unstemmed | Invariant representation for spectral reflectance images and its application |
| title_short | Invariant representation for spectral reflectance images and its application |
| title_sort | invariant representation for spectral reflectance images and its application |
| topic | Invariant representation dichromatic reflection models spectral imaging system spectral image segmentation |
| url | http://jivp.eurasipjournals.com/content/2011/1/2 |
| work_keys_str_mv | AT ibrahimabdelhameed invariantrepresentationforspectralreflectanceimagesanditsapplication AT tominagashoji invariantrepresentationforspectralreflectanceimagesanditsapplication AT horiuchitakahiko invariantrepresentationforspectralreflectanceimagesanditsapplication |