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題 名 | 影像分析系統用於紙張結構之研究 |
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作 者 | 王益真; 吳文棧; 谷雲川; | 書刊名 | 林業試驗所研究報告季刊 |
卷 期 | 6:4 1991.12[民80.12] |
頁 次 | 頁373-386 |
分類號 | 476.1 |
關鍵詞 | 分析; 系統; 紙張; 結構; 影像; |
語 文 | 中文(Chinese) |
中文摘要 | 本計畫之目的為探討國產影像分析系統用於纖維形態與紙張結構之應 用。以光學方法作紙張之影像分析以決定其結構變異為主之研究。紙張結構以基 重變化為代表,以均勻之可見光穿透紙張,以影像系統所攝得不同試樣區間範圍 內紙張之灰變化作交織指數(formation indices)計算,或以定間距直線掃描線將持 定範圍內紙張之座標值及灰度變化值依 Kubclka-Monk方程式所顯示的透光度 與基重關係轉換後以立體繪圖程式顯示模擬之三維基重變化圖。試驗分析受到影 像系統硬體及軟體功能限制頗為嚴重,例如照明均勻度、背景差異校正以及紙張 本身抄造條件往往不能掌握,使分析結果有相當不確定性。本試驗方法則可確立 分析一具有不同規模不均勻平面影像可採之方針。 |
英文摘要 | The purpose of this study is to investigate the applicability of local-made image analysis system in fiber morphology and paper structure or formation. The emphasis of part 2 of the study is to obtain from transmitted light images of paper sheets the variation of their fiber distribution, i.e., basis weight variation. Imaging areas of different scales and calculation of formation indices of paper, as well as line- by-line scan gray-level variatons of sample sheets, with data transformed according to Kubelka-Monk theory on relationship between basis weight and transmitted light, then replotted with a 3-D graphic program to indicate topotraphic and contour maps of the variation. The analyses are much constraint by software handicap and hardware setup problems, such as uniformity of the incident illumination, aperture and band- pass requirements. The results of the analyses are subject to uncertainties. Nevertheless, methology of 3-D analysis of a nonuniform sheet-like material is evaluated. |
本系統中英文摘要資訊取自各篇刊載內容。