Sparse reconstruction method for electrical impedance tomography
The invention discloses a sparse reconstruction method for electrical impedance tomography. The conductivity distribution of the dynamic electrical impedance tomography has the sparse property, when the electrical impedance tomography is restructured, regular terms of the restructured objective func...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention discloses a sparse reconstruction method for electrical impedance tomography. The conductivity distribution of the dynamic electrical impedance tomography has the sparse property, when the electrical impedance tomography is restructured, regular terms of the restructured objective function use the L1 normal number, the sparse property of non-uniform conductivity is introduced to regular terms, the objective function is calculated through a convex optimization problem solving method, and the restructured electrical impedance tomography is obtained. L1 normal regular terms are used for resisting noise effectively, the non-uniform conductivity is introduced to regular terms, the quality and the noise-resisting capability of the electrical impedance tomography can be improved, and the calculation speed is fast. |
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