Superresolution Method Approach for Vietnam Remote Sensing Imagery

Le Quoc Hung ； Dang Truong Giang ； Nguyen Ngoc Quang

《International Journal of Remote Sensing Applications》 6卷 (2016/03) Pp. 118-126

https://doi.org/10.14355/ijrsa.2016.06.012

摘要

Spatial resolution enhancement of satellite imagery is one of the most important aspects in the field of remote sensing science. Resolution enhancement by up-grading satellite imaging or developing advanced optical instrument it is very costly to obtain the high resolution. On the other hand, the increase in spatial resolution has to be balanced with the state capacity in transmission rates, archiving and processing capabilities. Thus, the other parameters of satellite system must be reduced such as swath width, spectral and radiometric resolution, observation and data transmission duration. These reasons promote researchers in order to propose the approach of using multiple images for enhancing spatial resolution from low to high. VNREDSAT-1 is the first Vietnamese remote sensing satellite which was launched and has operated since 2013. This paper will present some very first result of enhancing its spatial resolution based on the super-resolution method. With this method, the 1.25m resolution was created from the 2.5m original resolution of VNREDSAT-1 image. The result shows how the improved resolution can help to explore more information of objects on the earth for serving the mission of natural resources and environment monitoring.

關鍵字

Super-resolution (SR) ； Low Resolution (LR) ； VNREDSat-1 ； NinhThuan ； Vietnam