IMPROVING THE SPATIAL RESOLUTION OF THE ALOS PRISM TRIPLET USING A FUSION TECHNIQUE
Yong Wang, Chong Fan, Jianya Gong, Mingsheng Liao · 2008
We developed a fusion technique to improve the spatial resolution of the triplet of the ALOS PRISM data. The technique used a maximum a posteriori estimation framework to obtain a high resolution image from the triplet, and it was the combination of the blur identification and high resolution image reconstruction. In particular, an iterative scheme based on the alternating minimization was developed to estimate the blur and high resolution image progressively, and a hybrid optical flow registration method was then used to estimate the deformation coming from hypsography. Results showed that the fusion technique was effective, and improved the resolution.