頁籤選單縮合
題名 | 福衛二號立體取像與影像精度=FORMOSAT-2 Stereo Acquisition Geometry and Image Geometric Accuracy |
---|---|
作者 | 周士傑; 劉蒨蒨; Chou, Shih-chieh; Liou, Chian-chian; |
期刊 | 航測及遙測學刊 |
出版日期 | 20150200 |
卷期 | 19:4 2015.02[民104.02] |
頁次 | 頁297-302 |
分類號 | 440.98 |
語文 | chi |
關鍵詞 | 福衛二號; 立體對取像; 排程; 數值高程模型; FORMOSAT-2 satellite; Stereo images; Digital elevation model; |
中文摘要 | 立體影像為利用感測器針對同一目標物,進行多次拍攝,因其拍攝視角不同而導致不同視差,可藉由其相對幾何關係得到目標物的高程資訊,在一般航空攝影中,基高比 (B/H ratio) 為度量所產製的影像其高程資訊所可得到的理論精確度,然而對遙測衛星而言,其飛行高度相對於地球半徑並非不可忽略,同時所拍攝的目標物並不一定在軌道下方,因此單純基高比並不足以做為憑斷立體影像精度的指標,本文將以福衛二號拍攝之立體影像為例子,分析其拍攝方式與其精度的關係。 |
英文摘要 | For the remote sensing satellite, it is a practical scheme where two images acquired at different time from either same orbit or different orbit. Due to the stable and predicted satellite orbit, the same location area usually detected with different perspective by different predefined attitude. It induced the displacement in the image plane of optical system. The higher the elevation, the large the parallax induced. In aerial photography, elevation accuracy is greatly influenced by the base-height ratio. However, considering the acquisition geometry of satellite stereo pair, it is obvious that not only base-height ratio but also other parameters have great impacts on performance of geometric accuracy. In this article, the analysis of acquisition geometry of stereo model was given. Furthermore, we also present various case studies regarding FORMOSAT-2 stereo images in pass few years and analyze the acquisition geometry parameters. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。