Once the temporal profile of the displacement was calculated, the maximum displacement at each pixel was mapped in the MMUS image.
Each pixel in 'matchfile' will be mapped to pixels in the 'infile.
Open image in new window Fig. 9 The Global map coordinate a the Earth map in pixel coordinate, b the Global tile at zoom level 1.
Step 3. Applying FJLT hashing in Section 3 to the magnitude feature image derived in Step 2. For the conversion in Step 1, since the pixels in Cartesian coordinates are not able to be one-to-one mapped to pixels in the Log-Polar coordinates space, some value interpolation approaches are needed.
The registration procedure above served mostly to correct any rotational differences because the translational positioning of the μ-map had to be set in the header, specifying a μ-map origin in pixels and an origin offset in millimeters relative to the system patient table origin.
In this way, two locations adjacent in the input image are mapped into adjacent pixels in the FOA.
Logical pixels in the output image are mapped to physical pixels which are then mapped to world coordinate (RA,Dec).
The assumption in mapping corresponding pixels in two images is to correlate the regions in which these pixels are centered.
As a second step, the image coordinates of N known stars ((X si, Y si), i = 1, 2, 3, ⋯, N in pixels) are mapped onto an arbitrary spherical coordinates system (r 0i, λ 0i, ϕ 0i) using the projection constant A. During this process, only the angular distance between any two stars is important.
For the estimation of each source (abundance) we divide the map in 8×8 pixel subareas and we calculated the material abundances as the percentages of the classes within each subarea.
