Journal of Glaciology and Geocryology

Precision comparison of different offset-tracking methods at sub-pixel level for glacier velocity study

Zhibin YANG, Gang LI, Yanting MAO, Xiaoman FENG, Zhuoqi CHEN

Journal of Glaciology and Geocryology, 2024, 46(3): 806-818. DOI: 10.7522/j.issn.1000-0240.2023.0174

图像对	COSI-Corr		autoRIFT		CCF-O		NCC
图像对	NS	EW	NS	EW	NS	EW	NS	EW
0706-0716	0.0358	0.0330	0.0395	0.0339	0.0446	0.0388	0.0837	0.0715
0711-0721	0.0344	0.0330	0.0306	0.0302	0.0351	0.0347	0.0658	0.0656
0711-0721	0.0341	0.0302	0.0373	0.0329	0.0404	0.0358	0.0693	0.0637

Table 2 RMSE （px）

Other figure/table from this article

Fig. 1 Petermann （left） and Kangerlussuaq （right） glaciers and image coverage area
Table 1 Sentinel-2 image pairs parameters
Fig. 2 Flow chart
Fig. 3 pre-set offset fields
Fig. 4 Petermann （a） and Kangerlussuaq （b） offset-tracking results
Fig. 5 Scatter plot of the fitting
Table 3 RMSE （px） before and after correction for Petermann Glacier
Table 4 RMSE （px） before and after correction for Kangerlussuaq Glacier
Fig. 6 Comparison of the bicubic kernels and the sinc function
Table 5 Algorithmic efficiency