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US 10,852,421 B1Granted
Sparse phase unwrapping
AssigneeDescartes Labs, Inc.
InventorsRick S. Chartrand, Matthew T. Calef
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Abstract
Sparse phase unwrapping is disclosed. A first image and a second image are received. The first image and the second image are coregistered. The first image and the second image comprise respective phase data. An unwrapped interferogram is generated, including by solving an optimization problem using a nonconvex penalty function, where minimizing the penalty function produces sparse minimizers.
Claims21
A system, comprising:
- a processor configured to:
- receive a first image and a second image, wherein the first image and the second image are coregistered and wherein the first image and the second image comprise respective phase data;
- and
- generate an unwrapped interferogram including by solving an optimization problem using a nonconvex penalty function, wherein minimizing the penalty function produces sparse minimizers;
- and
- a memory coupled to the processor and configured to provide the processor with instructions.
3 more elements
A method, comprising:
- receiving a first image and a second image, wherein the first image and the second image are coregistered and wherein the first image and the second image comprise respective phase data;
- and
- generating an unwrapped interferogram including by solving an optimization problem using a nonconvex penalty function, wherein minimizing the penalty function produces sparse minimizers.
A computer program product embodied in a non-transitory computer readable storage medium and comprising instructions which, when executed, cause a computer to:
- receive a first image and a second image, wherein the first image and the second image are coregistered and wherein the first image and the second image comprise respective phase data;
- and
- generate an unwrapped interferogram including by solving an optimization problem using a nonconvex penalty function, wherein minimizing the penalty function produces sparse minimizers.
Dependencies are inferred from the claim text.