Systems, methods, and computer-readable media for utilizing a sifrian inversion to build a model to generate an image of a surveyed medium
AssigneeTechnology Innovation Institute
InventorsFares B. Mehouachi, Qingjie Yang, Chaouki Kasmi
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Abstract
Systems, methods, and computer-readable media for using full waveform inversion for imaging surveyed mediums are provided. The full waveform inversion uses a Sifrian functional to fully leverage Hessian information and update a model by augmenting and assembling data derived from the Sifrian functional when equilibrated. The Sifrian inversion produces high resolution images of the surveyed medium typically only seen with full Hessian inversions and can produce such images without requiring supercomputer computation power or extremely long computation time.
Claims20
A method for waveform imaging comprising:
- receiving, by a computing system, observed data from a surveyed medium via a plurality of sensors;
- obtaining, by the computing system, an available model of the surveyed medium;
- generating, by the computing system, synthetic data using the available model;
- comparing, by the computing system, the synthetic data to the observed data to determine whether the observed data and the synthetic data are within a matching threshold;
- determining, by the computing system, that the observed data and the synthetic data are not within the matching threshold;
- based on the determining, iteratively updating the available model, using a Sifrian inversion, until the synthetic data matches the observed data within the matching threshold;
- responsive to the synthetic data matching the observed data within the matching threshold, updating, by the computing system, the available model;
- and
- generating, by the computing system, a final model or a final image of the surveyed medium using the updated available model.
A system for waveform imaging and model building comprising:
- a processor;
- and
- a memory having programming instruction stored thereon, which, when executed by the processor, causes the system to perform operations comprising:
- receiving observed data from a surveyed medium via a plurality of sensors;
- obtaining an available model of the surveyed medium;
- generating synthetic data using the available model;
- comparing the synthetic data to the observed data to determine whether the observed data and the synthetic data are within a matching threshold;
- determining that the observed data and the synthetic data are not within the matching threshold;
- based on the determining, iteratively updating the available model, using a Sifrian inversion, until the synthetic data matches the observed data within the matching threshold;
- responsive to the synthetic data matching the observed data within the matching threshold, updating the available model;
- and
- generating a final model or a final image of the surveyed medium using the updated available model.
A non-transitory computer readable medium comprising one or more sequences of instructions, which, when executed by one or more processors, causes a computing system to perform operations comprising:
- receiving, by the computing system, observed data from a surveyed medium via a plurality of sensors;
- obtaining, by the computing system, an available model of the surveyed medium;
- generating, by the computing system, synthetic data using the available model;
- comparing, by the computing system, the synthetic data to the observed data to determine whether the observed data and the synthetic data are within a matching threshold;
- determining, by the computing system, that the observed data and the synthetic data are not within the matching threshold;
- based on the determining, iteratively updating the available model, using a Sifrian inversion, until the synthetic data matches the observed data within the matching threshold;
- responsive to the synthetic data matching the observed data within the matching threshold, updating, by the computing system, the available model;
- and
- generating, by the computing system, a final model or a final image of the surveyed medium using the updated available model.
Dependencies are inferred from the claim text.