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題名 | 以攝影測量方式建立無人機影像曜光模式之研究=Establishing Sun-glint Estimation Model for Unnamed Aerial System Image through Photogrammetry |
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作者 | 李祈叡; 王聖鐸; | 書刊名 | 航測及遙測學刊 |
卷期 | 29:1 2024.03[民113.03] |
頁次 | 頁1-16 |
分類號 | 440.98 |
關鍵詞 | 曜光; 無人機; 攝影測量; 飛行規劃; Sun glint; Unnamed aerial system; Photogrammetry; Flight planning; |
語文 | 中文(Chinese) |
DOI | 10.6574/JPRS.202403_29(1).0001 |
中文摘要 | 無人機影像和航遙影像同樣會受到太陽曜光影響。雖已有不同方式可最小化太陽曜光對影像的影響,但目前尚不確定過去使用於低空間解析度影像的處理方法,是否能夠有效應用於高空間解析度的影像。本研究欲於無人機於航線規劃階段,瞭解曜光可能的出現情形。在對研究區域建立地表、太陽及攝影站之空間關係後,研究將進行曜光預估的計算。根據研究之模擬,使用攝影測量方式建立之曜光預估模式可使使用者於航線規劃階段得知曜光於整體影像蒐集過程之分佈,並可依時間、外方位元素之調整要點,為目標飛行時段帶來較佳有效影像蒐集效率之航拍規劃。 |
英文摘要 | Nowadays, Unmanned Aerial System (UAS) imagery products also suffer from blurring and degradation caused by sun glint effects. Various techniques, including detection methods and specialized algorithms, are used to minimize sun glint's impact in aerial or remote sensing imagery. However, it remains uncertain whether the processing techniques used for low spatial resolution images can effectively be applied to images with high spatial resolution. By establishing the spatial relationships between the ground, sun, and sensor, a threshold for determining the presence of sun glint was established based on previously captured images, specifically for this research model. The findings of the results are presented from statistical, image-based, and physical spatial perspectives to identify the time period with the least sun glint during the target flight. This finding helps in reducing the effort required for sun glint removal. The key outcome of this approach is that employing photogrammetric techniques to establish a sun glint prediction model allows users to understand the distribution of sun glint throughout the entire image acquisition process during the planning phase. By adjusting the timing, it becomes feasible to plan flight schedules during periods of the day that offer higher efficiency in capturing useful images. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。