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題 名 | 面陣列FLIR-T360熱影像特性之研究=Research on Characteristic of Area-Based Thermal Infrared Images |
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作 者 | 那至中; 黃灝雄; | 書刊名 | 航測及遙測學刊 |
卷 期 | 15:4 2010.12[民99.12] |
頁 次 | 頁367-374 |
分類號 | 471.3 |
關鍵詞 | 面陣列熱像儀; 熱紅外影像; 率定; Area-based thermal sensor; Thermal infrared image; Calibration; |
語 文 | 中文(Chinese) |
中文摘要 | 摘 要 熱紅外波段因不受日夜條件限制,在遙感探測中佔有相當重要的地位。在判釋遙測影像之前,通常 必先確定各波段影像的幾何性質一致,使影像受儀器本身的影響減到最低。本研究以FLIR-T360 紅外線 熱像儀為研究對象,探討熱像儀的成像特性,且嘗試率定與改正蒐集之熱影像。率定熱像儀的實驗可分 為幾何與輻射兩方面,幾何方面使用改良型的實地率定法,以求取熱像儀的內方位參數;輻射方面則使 用實地調查法,求得控制點溫度,利用拍攝控制點蒐集多筆資料,擬合出輻射改正模型;本文另展示熱 影像幾何以及輻射改正後的成果,並說明綜合幾何與輻射特性之熱陰影效應。 |
英文摘要 | ABSTRACT Thermal infrared data is important when conducting remote sensing investigation, for it could be acquired both in day and night. The change of temperature has characteristic significance of representation. So the thermal infrared images are used not only in the domain of surveying, but also in the environment monitoring, the urban development, and the disaster prevention. Before interpreting the remote sensing data, one would make sure that each image of bands has similar image geometry. Calibrating such geometry could prove that the effect from the lens distortion had been minimized. In such case, calibrated thermal images are necessary to guarantee that the image coordinates can be registered to the image coordinates of the other bands. A thermal sensor, FLIR-T360 has been calibrated in this research. Two aspects of calibration executed are geometric and radiometric. A conventional calibrated template has been improved for using in the geometric calibration. The thermal sensor’s interior orientation elements were then found by using a field method. In the radiometric aspect, in situ method has been employed to determine temperatures of the chosen control points. The results of correction in geometric and radiometric aspect are also shown and discussed in this study. |
本系統中英文摘要資訊取自各篇刊載內容。