Data Filtering by 3D Convolution
Anne-Laure Tertois and Tobias Frank. ( 2004 )
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 } }