Wang Junfeng, Mao Yinfang. STUDY ON THE METHOD OF RECONSTRUCTING IMAGE FROM THE UNEVENLY SPACED DATA IN THE SPATIAL FREQUENCY DOMAIN[J]. Journal of Electronics & Information Technology, 1997, 19(4): 459-463.
Citation:
Wang Junfeng, Mao Yinfang. STUDY ON THE METHOD OF RECONSTRUCTING IMAGE FROM THE UNEVENLY SPACED DATA IN THE SPATIAL FREQUENCY DOMAIN[J]. Journal of Electronics & Information Technology, 1997, 19(4): 459-463.
Wang Junfeng, Mao Yinfang. STUDY ON THE METHOD OF RECONSTRUCTING IMAGE FROM THE UNEVENLY SPACED DATA IN THE SPATIAL FREQUENCY DOMAIN[J]. Journal of Electronics & Information Technology, 1997, 19(4): 459-463.
Citation:
Wang Junfeng, Mao Yinfang. STUDY ON THE METHOD OF RECONSTRUCTING IMAGE FROM THE UNEVENLY SPACED DATA IN THE SPATIAL FREQUENCY DOMAIN[J]. Journal of Electronics & Information Technology, 1997, 19(4): 459-463.
This paper studies intensively the bilinear interpolation and 2D-IFFT method of reconstructing image from the unevenly spaced data in the spatial frequency domain. The basic ideas are to decide an evenly grid, interpolate the unevenly spaced data on a uniform grid and take the 2D-IFFT of the data on the uniform grid. The paper presents the principle of deciding the grid, discusses bilinear interpolation and analyses some important problems of 2D-IFFT. The method has been applied to synthetic aperture radar(SAR) imaging and the result is satisfactory.
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