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US 11,686,840 B2Granted
System and method for remote dam monitoring
AssigneeRezatec Limited
InventorsTodd Sajwaj, Henry Brown
Life of this patent
Estimating the term…
Abstract
A system and method for identifying damage to an embankment includes acquiring satellite imagery of an area of the embankment, generating a set of input data from the satellite imagery, removing at least one anomaly in the set of input data to obtain a cleaned set of input data, and identifying the damage by determining a dam motion area indicative of ground motion in the embankment from the cleaned set of input data and determining an anomalous vegetation area and an anomalous wetness area indicative of seepage in the embankment from the cleaned set of input data.
Claims12
A method comprising:
- acquiring, by a processor executing computer-readable instructions stored on a memory, satellite imagery of an area of an embankment;
- generating, by the processor, a set of optical images from the satellite imagery;
- determining, by the processor, an anomalous vegetation area and an anomalous wetness area indicative of seepage in the embankment from the set of optical images, wherein determining the anomalous vegetation area and the anomalous wetness area comprises:
- performing, by the processor, a Tasseled Cap transformation on the set of optical images for obtaining a first set of data points corresponding to a greenness Tasseled Cap band and a second set of data points corresponding to a wetness Tasseled Cap band;
- determining, by the processor, principal component eigenvalues from each of the first set of data points and the second set of data points;
- identifying, by the processor, the anomalous vegetation area based upon a first standard deviation of the principal component eigenvalues of the first set of data points from a first mean principal component eigenvalue, using a threshold based on a multiple of the first standard deviation;
- and
- identifying, by the processor, the anomalous wetness area based upon a second standard deviation of the principal component eigenvalues of the second set of data points from a second mean principal component eigenvalue;
- and
- generating, by the processor, an alert to a dam operator, wherein the alert comprises at least one of the anomalous vegetation area and the anomalous wetness area.
7 more elements
A non-transitory computer-readable medium comprising computer-executable instructions embodied thereon that, when executed by a processor, cause the processor to perform a process comprising:
- acquiring satellite imagery of an area of an embankment;
- generating a set of optical images from the satellite imagery;
- determining an anomalous vegetation area and an anomalous wetness area indicative of seepage in the embankment from the set of optical images, wherein determining the anomalous vegetation area and the anomalous wetness area comprises:
- performing a Tasseled Cap transformation on the set of optical images for obtaining a first set of data points corresponding to a greenness Tasseled Cap band and a second set of data points corresponding to a wetness Tasseled Cap band;
- determining principal component eigenvalues from each of the first set of data points and the second set of data points;
- identifying the anomalous vegetation area based upon a first standard deviation of the principal component eigenvalues of the first set of data points from a first mean principal component eigenvalue, using a threshold based on a multiple of the first standard deviation;
- and
- identifying the anomalous wetness area based upon a second standard deviation of the principal component eigenvalues of the second set of data points from a second mean principal component eigenvalue;
- and
- generating an alert to a dam operator, wherein the alert comprises at least one of the anomalous vegetation area and the anomalous wetness area.
7 more elements
A system comprising:
- a processor;
- and
- a memory including computer-executable instructions embodied thereon that, when executed by the processor, cause the processor to perform a process including:
- acquiring satellite imagery of an area of an embankment;
- generating a set of optical images from the satellite imagery;
- determining an anomalous vegetation area and an anomalous wetness area indicative of seepage in the embankment from the set of optical images, wherein determining the anomalous vegetation area and the anomalous wetness area comprises:
- performing a Tasseled Cap transformation on the set of optical images for obtaining a first set of data points corresponding to a greenness Tasseled Cap band and a second set of data points corresponding to a wetness Tasseled Cap band;
- determining principal component eigenvalues from each of the first set of data points and the second set of data points;
- identifying the anomalous vegetation area based upon a first standard deviation of the principal component eigenvalues of the first set of data points from a first mean principal component eigenvalue, using a threshold based on a multiple of the first standard deviation;
- and
- identifying the anomalous wetness area based upon a second standard deviation of the principal component eigenvalues of the second set of data points from a second mean principal component eigenvalue;
- and
- generating an alert to a dam operator, wherein the alert comprises at least one of the anomalous vegetation area and the anomalous wetness area.
10 more elements
Dependencies are inferred from the claim text.