頁籤選單縮合
題名 | 以影像處理量測檸檬之幾何性質= |
---|---|
作者 | 李芳繁; |
期刊 | 農業工程學報 |
出版日期 | 19900900 |
卷期 | 36:3 1990.09[民79.09] |
頁次 | 頁36-42 |
分類號 | 435.332 |
語文 | chi |
關鍵詞 | 量測; 影像處理; 檸檬; |
中文摘要 | 本研究使用影像處理系統量測檸檬之長度、寬度、投影面積與投影之邊界長。取像時檸檬以任意方位放置於背光檯上。影像經數位化與二值化後,使用間隙追蹤法尋找邊界。Hotelling轉換法與旋轉法用以量測長度及寬度。寬度量測誤差之標準差比長度之標準差為小。投影面積與質量、長度和寬度之間均有高相關係數。 |
英文摘要 | Image processing algorithms were developed to measure the lengths, widths, projected areas, and the perimeters of projected area of lemons. Lemons were placed, in random orientation, on a backlighting table. The crack following method was utilized to search the boundary pixels of the threshold images. The Hotelling transform and the rotation method were used to measure the lengths and widths. The standard deviation of measurement errors of width was less than that of length. The projected area correlated well with the mass, length, and width, respectively. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。