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We present a new method to reconstruct high resolution SAR images. When the far-field data arranged in the polar format, a 2-D Fourier transform can achieve the image reconstruction. But the data do not fall on a Cartesian grid, we introduce 2-D Nonuniform Fast Fourier Transform (NUFFT) to reconstruct the SAR image directly. It is the first time to use NUFFT technology in SAR image reconstruction...
In image reconstruction, dynamic super resolution image reconstruction algorithms have been investigated to enhance video frames sequentially, where explicit motion estimation is considered as a major factor in the performance. This paper proposes a novel measurement validation method to attain robust image reconstruction results under inaccurate motion estimation. In addition, we present an effective...
Peak signal-to-noise ratio (PSNR) is commonly used as a measure for the quality of the reconstructed picture where the original picture is used as reference data. Since the original picture is not available in the video decoder, the receiver cannot evaluate the quality of the reconstructed image from the viewpoint of PSNR. Proposed is an efficient method to estimate PSNR using the statistical distribution...
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