Acta Optica Sinica, Volume. 39, Issue 9, 0928001(2019)
Improved Thermal Infrared Image Downscaling Model and Its Application
A three-layer decomposition model is used to downscale the surface temperature of the study area via four different surface feature factors and their combinations. Experimental results show that the three-layer decomposition model using multi-surface feature factor combination obtains higher downscaling accuracy than that using a single factor, and the root mean square error increases from 0.813 K to 0.763 K; the main source of error is the architectural area. To study the urban heat island effect, this study uses the heat field intensity index and heat field variation index for evaluation; both evaluation indexes indicate that the accuracy of the multi-factor model is better than that of the single factor model.
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Wenqi Zhang, Cailan Gong, Yong Hu, Wentao Song, Dingbo Kuang. Improved Thermal Infrared Image Downscaling Model and Its Application[J]. Acta Optica Sinica, 2019, 39(9): 0928001
Category: Remote Sensing and Sensors
Received: Mar. 5, 2019
Accepted: May. 20, 2019
Published Online: Sep. 9, 2019
The Author Email: Gong Cailan (gcl@mail.sitp.ac.cn)