Wood and Wood Based Materials. Visual Characteristics Influencing Visual Hardness of Wood.
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- NAKAMURA Masashi
- Div. of Forest and Biomaterials Sci., Grad. School of Agr., Kyoto Univ.
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- SAKAI Takatoshi
- Kyoto Univ.
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- MASUDA Minoru
- Div. of Forest and Biomaterials Sci., Grad. School of Agr., Kyoto Univ.
Bibliographic Information
- Other Title
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- 木質材料 木材の見た目の「かたさ」に影響する因子の抽出
- モクザイ ノ ミタメ ノ カタサ ニ エイキョウ スル インシ ノ チュウシュツ
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Abstract
Visual characteristics of wood which influence visual hardness of it were studied. Thirty-four photographs of H-shaped wooden backs of chairs were prepared as specimens. Questionnaires regarding visual hardness and “deluxe” image of specimens were distributed to 32 subjects using the repeated equal-division method. Color values (Y, x and y) of specimens were measured by the colorimeter. Local-area gloss G and spatial ratio of contrasts C were calculated using digital image analyses. G was the index of the local-area glossiness (highlight), and C was the index of the noticeability of wood grain figures. Calculation procedures for both indices were newly developed in this paper. The single correlation coefficient between a visual “hard” image and Y (lightness of specimen) was -0.91, and that between G was 0.83. Using visual “hardness” as a criterion variable and Y and G as predictor variables, a multiple regression analysis was performed. The multiple correlation coefficient was 0.931, the ratio of contribution was 86.7% (significant level 1%). Furthermore C was added to the regression model, above values were 0.942 and 88.8%, respectively (significant level 1%).
Journal
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- Journal of the Society of Materials Science, Japan
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Journal of the Society of Materials Science, Japan 51 (4), 398-403, 2002
The Society of Materials Science, Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390001205391831424
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- NII Article ID
- 110002301890
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- NII Book ID
- AN00096175
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- ISSN
- 18807488
- 05145163
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- NDL BIB ID
- 6138411
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed