Error detection in seismic data
First Claim
1. Apparatus for detecting errors in frames of seismic data capable of being presented as images, such images being expected to exhibit an inherent symmetry about an axis, the apparatus comprising:
- a storage device for storing a frame of seismic data capable of being presented as an image;
a selection device for selecting an axis within the image as the axis of symmetry;
a divider for dividing the data about the axis of symmetry to create first and second sets of data, wherein the divider includes a mirroring means for re-ordering the data in the first set of data so that it can be presented by an image which would be the mirror image of the image previously representing the set; and
a comparison means for comparing the re-ordered first set of data and second set of data according to preselected matching criteria to determine, based on the degree of matching, whether the extent of mismatch in the frame of data is within a predetermined tolerance and, if it is, to indicate the frame of seismic data is valid.
2 Assignments
0 Petitions
Accused Products
Abstract
An apparatus for detecting errors in frames of seismic data that can be presented as images, such images being expected to exhibit an inherent symmetry about an axis, the apparatus comprising: a storage device for storing a frame of seismic data which can be presented as an image; a selection device for selecting an axis within the image as the axis of symmetry; a divider for dividing the data about the axis of symmetry to create first and second sets of data; and a comparison means for comparing the sets of data according to preselected matching criteria to determine, based on the degree of matching, whether the extent of mismatch in the frame of data is within a predetermined tolerance.
15 Citations
16 Claims
-
1. Apparatus for detecting errors in frames of seismic data capable of being presented as images, such images being expected to exhibit an inherent symmetry about an axis, the apparatus comprising:
-
a storage device for storing a frame of seismic data capable of being presented as an image; a selection device for selecting an axis within the image as the axis of symmetry; a divider for dividing the data about the axis of symmetry to create first and second sets of data, wherein the divider includes a mirroring means for re-ordering the data in the first set of data so that it can be presented by an image which would be the mirror image of the image previously representing the set; and a comparison means for comparing the re-ordered first set of data and second set of data according to preselected matching criteria to determine, based on the degree of matching, whether the extent of mismatch in the frame of data is within a predetermined tolerance and, if it is, to indicate the frame of seismic data is valid. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A method of detecting errors in frames of seismic data capable of being presented as images, such images being expected to exhibit an inherent symmetry about an axis, the method comprising the steps of:
-
(a) storing a frame of seismic data capable of being presented as an image in a storage device; (b) selecting an axis within the image as the axis of symmetry; (c) employing a divider to divide the image about the axis of symmetry to create first and second sets of data, wherein the dividing step includes a mirroring step which re-orders the data in the first set of data so that it can be represented by an image which would be the mirror image of the image previously representing that set; (d) comparing, in a comparing means, the re-ordered first set of data and second set of data according to preselected matching criteria to determine, based on the degree of matching, whether the extent of mismatch in the frame of data is within a predetermined tolerance; and (e) indicating, if extent of the mismatch is within the predetermined tolerance, that the frame of seismic data is valid. - View Dependent Claims (13, 14, 15, 16)
-
Specification