Processing of oriented patterns
First Claim
1. A method of processing an oriented pattern comprising the steps of:
- finding local estimates of flow direction in the pattern;
deriving a flow field based on said local estimates of flow direction; and
extracting useful features of the pattern by utilizing said flow field.
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Accused Products
Abstract
Disclosed are a method and a system for processing patterns such as oriented patterns, to derive constituents which are more useful than the original patterns. For example, an oriented pattern such as a seismic section can be decomposed into a flow field, which is an estimate of a moving accretion boundary which formed the subsurface layers, and a residual pattern, which is an estimate of layer properties, such as acoustic velocity. Similarly, an oriented pattern such as a chart displaying changes in borehole resistivity with depth along its vertical direction and changes in resistivity with angle around the borehole along its horizontal dimension, can be decomposed into a flow field and a residual pattern, where the flow field is an estimate of a moving accretion boundary and the residual pattern is an estimate of resistivity changes with depth and angle independent of the accretion boundary. The flow field can be mapped onto regular, e.g. orthogonal or polar, coordinates to thereby straighten the original pattern into a deformed or residual pattern which is more useful with respect to visualizing or further processing a parameter of interest than the original pattern.
46 Citations
38 Claims
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1. A method of processing an oriented pattern comprising the steps of:
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finding local estimates of flow direction in the pattern; deriving a flow field based on said local estimates of flow direction; and extracting useful features of the pattern by utilizing said flow field. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A method of processing an oriented pattern comprising the step of:
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processing the pattern to estimate its flow field; using the flow field to represent the pattern in a regular coordinate system based on but different from that of the flow field; and further processing the pattern in said regular coordinate system to derive desired features of the pattern. - View Dependent Claims (34, 35, 36)
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37. A method of processing an original oriented pattern comprising:
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processing the original pattern to transform it into a residual pattern which is in a regular coordinate system conforming to the flow field of the original pattern; and processing the residual pattern by using at least one coordinate of said regular coordinate system to extract desired features of the pattern.
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38. A method of processing an oriented pattern comprising:
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finding local estimates of flow direction in the pattern; and using said local estimates to extract an estimate of a residual pattern corresponding to the original pattern but substantially independent of estimated effects of a flow characterized by said local estimates of flow direction.
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Specification