Data Filtering by 3D Convolution

in: 24th gOcad Meeting, ASGA

Abstract

Two-dimensional convolution is a common technique for image processing. Different types of convolution kernels are used depending on the desired filtering effect. The same principle can be applied in a G CAD plug-in to data volumes. Applying a three-dimensional convolution kernel makes it possible to take into account the correlation of the data in three dimensions. A smoothing convolution kernel can be used as a local estimator. For data sets in which some values are undefined, an approximation of the value can be computed on a local neighbourhood by convolution with an averaging kernel. Applying a three-dimensional convolution kernel to data volumes can be done simply by iterating on data and kernel values. For seismic data volumes, filtering by a chosen type of kernel can facilitate interpretation. Sharpening a coherence data set can enhance faults and make them easier to pick. Smoothing an amplitude data set can improve auto tracking performance.

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    BibTeX Reference

    @inproceedings{TertoisRM2004,
     abstract = { Two-dimensional convolution is a common technique for image processing. Different types of convolution kernels are used depending on the desired filtering effect. The same principle can be applied in a G CAD plug-in to data volumes. Applying a three-dimensional convolution kernel makes it possible to take into account the correlation of the data in three dimensions. A smoothing convolution kernel can be used as a local estimator. For data sets in which some values are undefined, an approximation of the value can be computed on a local neighbourhood by convolution with an averaging kernel. Applying a three-dimensional convolution kernel to data volumes can be done simply by iterating on data and kernel values. For seismic data volumes, filtering by a chosen type of kernel can facilitate interpretation. Sharpening a coherence data set can enhance faults and make them easier to pick. Smoothing an amplitude data set can improve auto tracking performance. },
     author = { Tertois, Anne-Laure AND Frank, Tobias },
     booktitle = { 24th gOcad Meeting },
     month = { "june" },
     publisher = { ASGA },
     title = { Data Filtering by 3D Convolution },
     year = { 2004 }
    }