Title :
Accurate geometric correction of NOAA AVHRR images: the coastline detection approach with respect to multispectral and spatial information
Author :
Bin, Zhang ; Zhong, Zhu Zheng ; Shou, Wu You
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
This paper describes a simple, computationally inexpensive approach for automatically detecting coastline with respect to multispectral and spatial information in a NOAA AVHRR (Advanced Very High Resolution Radiometer) image. This approach is used to automatically identifying GCPs (Ground Control Points); and then, using these GCPs to implement accurate geometric correction of NOAA AVHRR images. Experimental results show that: with this coastline detection approach the accurate geometric correction of NOAA AVHRR images can achieve subpixel accuracy (less than 1 pixel)
Keywords :
computational geometry; edge detection; geography; image registration; image resolution; image segmentation; radiometers; NOAA AVHRR images; accurate geometric correction; advanced very high resolution radiometer; coastline detection; ground control point identification; image registration; image segmentation; multispectral information; satellites; spatial information; Automatic control; Clouds; Earth; Image resolution; Image segmentation; Observatories; Pixel; Radiometry; Satellite broadcasting; Spatial resolution; Vegetation mapping;
Conference_Titel :
Intelligent Processing Systems, 1997. ICIPS '97. 1997 IEEE International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-4253-4
DOI :
10.1109/ICIPS.1997.669133
