Geometric correction method and device for shale nano-pore structure projection data
A technology of projection data and nano-porosity, which is applied in image data processing, projection reproduction, and 2D image generation. The effect of imaging resolution
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[0048] The embodiment of the present invention also provides a geometric correction device 200 for shale nano-pore structure projection data, see figure 2 , the device includes an up and down offset correction module 201 and a left and right offset correction module 202, wherein the up and down offset correction module 201 includes:
[0049] The up-down direction pre-processing unit 2011 is configured to pre-process the projection data of each angle.
[0050] The central angle up-down processing unit 2012 is used to perform cross-correlation processing on n rows of projection data close to the center to obtain corresponding up-down offset values and correct them.
[0051] Other data up-and-down processing calibration unit 2013, which is used to compare the projection data of other angles with the projection data of the adjacent projection data of the angle closer to the center and the projection data of n rows in the center to obtain the projection data of other angles resp...
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