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題名 | 遙測影像套合中自動化控制點選取的新方法= |
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作者 | 李良輝; |
期刊 | 中正嶺學報 |
出版日期 | 19920700 |
卷期 | 21:1 1992.07[民81.07] |
頁次 | 頁79-93 |
分類號 | 440.98 |
語文 | chi |
關鍵詞 | 自動化; 控制; 遙測影像; 選取; |
中文摘要 | 控制點選取是遙測影像套合處理中必要的程序。本文旨在提出一種逐 點加密式之自動化控制點選取方法,首先利用圖形理論中Voronoi-Delaunay對偶 圖形作控制點最佳位置之預估,並結合特徵基礎與區域基礎等二種影像配配方法 之優點,以興趣運算元粹取特徵點後,依層次式由粗至精匹配方式,精確量測共 軛點座標至次像元精度,最後以強鈍值法作一致性檢核。文中以SP0T衛星與數 化空照立體對影像為實驗例,結果證明本文所建議方法具有多項優點。 |
英文摘要 | The selection for control points is a necessity in registration for remotely sensed images. This paper is to propose a new progressive method to automatically generate control pointpairs with uniform distribution. The Voronoi-Delaunay dual graph used lo predict the optimal location first. Interest operators are then used to extract point features for potentialcontrol points. Finally, a hierarchical coarse to fine matching procedure is applied. Thearea-based matching is also integrated for accomplishing the image correspondence to subpixel level. A consistency check by Robust Estimation is also included. Two sets of SPOTimages and a pair of digitized aerial photos are used in the case study. Results indicatethat the proposed has many attractive merits. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。