Revisiting Geotensity in the Presence of Specular Reflection

• Item type: SIG Technical Reports(1)
• 公開日: 2006-03-17
• タイトル: Revisiting Geotensity in the Presence of Specular Reflection
• タイトル / 言語: en
• タイトル: Revisiting Geotensity in the Presence of Specular Reflection
• 言語: eng
• 資源タイプ / 資源タイプ識別子: http://purl.org/coar/resource_type/c_18gh
• 資源タイプ: technical report
• 著者所属: 京都大学
• 著者所属(英): en
• 著者所属(英): Kyoto Univ.
• 著者名: 牧, 淳人
• 著者名(英): Atsuto, Maki
• 論文抄録 / 内容記述タイプ: Other
• 論文抄録 / 内容記述: The geotensity constraint governs the relationship between four or more images of a moving object in spite of the illumination variance due to object motion. It applies to 3D surface reconstruction as well as to generate illumination image basis for Lambertian surface under a distant point light source. This paper presents a simple method for extending the availability of the constraint to the case that specularities are also present. The key idea is to utilise the fact that highlights shift on the surface due to object motion. That is we employ five or more images as inputs and interchangeably utilise a certain intensity subset consisting of four projected intensities which is the least influenced by the specular component. Further we show an algorithm to directly linearise the image basis by factoring out the specular components as residuals with respect to a linear combination of the intensity subset.
• 論文抄録(英) / 内容記述タイプ: Other
• 論文抄録(英) / 内容記述: The geotensity constraint governs the relationship between four or more images of a moving object in spite of the illumination variance due to object motion. It applies to 3D surface reconstruction as well as to generate illumination image basis for Lambertian surface under a distant point light source. This paper presents a simple method for extending the availability of the constraint to the case that specularities are also present. The key idea is to utilise the fact that highlights shift on the surface due to object motion. That is, we employ five or more images as inputs, and interchangeably utilise a certain intensity subset consisting of four projected intensities which is the least influenced by the specular component. Further, we show an algorithm to directly linearise the image basis by factoring out the specular components as residuals with respect to a linear combination of the intensity subset.
• 書誌レコードID / 収録物識別子タイプ: NCID
• 書誌レコードID / 収録物識別子: AA11131797
• 書誌情報: 情報処理学会研究報告コンピュータビジョンとイメージメディア（CVIM）; 巻 2006, 号 25(2006-CVIM-153), p. 265-270, 発行日 2006-03-17
• Notice: SIG Technical Reports are nonrefereed and hence may later appear in any journals, conferences, symposia, etc.
• 出版者 / 言語: ja
• 出版者: 情報処理学会