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TM1 TM2 TM3
TM4
TM5
TM7
TM6
Landsat TM 5 subscene showing the region around the Alpinforschungsze ntrum Rudolfshütte
• These distortions may be due to several factors, including:
• the perspective of the sensor optics; • the motion of the scanning system; • the motion of the platform; • the platform altitude, and velocity; • the terrain relief; and, the curvature and rotation of the
• The 'drift' was different for each of the six detectors, causing the same brightness to be represented differently by each detector.
• The corrective process made a relative correction among the six sensors to bring their apparent values in line with each other
② 具体步骤 1)计算校正后每一点所对应原图中的位置;
2)计算每一点的亮度值。
③ 计算方法 1)建立两图像像元点之间的对应关系; 2)求出原图所对应点的亮度:最近邻法、双 线性内插法、三次卷积内插法。