Included angles between hole - axes and bed boundaries are different in deviated wells and the measuring devices operate in eccentric positions, thus the influences of surrounding rocks on the measurements are different with that in vertical wells and the old correction charts are no longer applicable.

The correction chart is made based on theory calculation or experime.

Image correction techniques for large-aperture static imaging spectrometer;

Methods The forming factors of the Micro CT projective image noise were analyzed,and proposed the Micro CT projective image correction method to correct the random noise,dark field,light field,response nonuniformity and defect picture element and eliminate the random noise and the ring artifact respectively.

Some calibration points need to be placed in the shooting region by the traditional image correction, and then the image is corrected based on the knowledge of the computer vision.