Dataset Information

Uncertainty-aware asynchronous scattered motion interpolation using Gaussian process regression.

ABSTRACT: We address the problem of interpolating randomly non-uniformly spatiotemporally scattered uncertain motion measurements, which arises in the context of soft tissue motion estimation. Soft tissue motion estimation is of great interest in the field of image-guided soft-tissue intervention and surgery navigation, because it enables the registration of pre-interventional/pre-operative navigation information on deformable soft-tissue organs. To formally define the measurements as spatiotemporally scattered motion signal samples, we propose a novel motion field representation. To perform the interpolation of the motion measurements in an uncertainty-aware optimal unbiased fashion, we devise a novel Gaussian process (GP) regression model with a non-constant-mean prior and an anisotropic covariance function and show through an extensive evaluation that it outperforms the state-of-the-art GP models that have been deployed previously for similar tasks. The employment of GP regression enables the quantification of uncertainty in the interpolation result, which would allow the amount of uncertainty present in the registered navigation information governing the decisions of the surgeon or intervention specialist to be conveyed.

SUBMITTER: Kocev B

PROVIDER: S-EPMC6433137 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature

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Uncertainty-aware asynchronous scattered motion interpolation using Gaussian process regression.

Kocev Bojan B Hahn Horst Karl HK Linsen Lars L Wells William M WM Kikinis Ron R

Computerized medical imaging and graphics : the official journal of the Computerized Medical Imaging Society 20181221

We address the problem of interpolating randomly non-uniformly spatiotemporally scattered uncertain motion measurements, which arises in the context of soft tissue motion estimation. Soft tissue motion estimation is of great interest in the field of image-guided soft-tissue intervention and surgery navigation, because it enables the registration of pre-interventional/pre-operative navigation information on deformable soft-tissue organs. To formally define the measurements as spatiotemporally sca ...[more]

PMID: 30654093

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Dataset Information

Uncertainty-aware asynchronous scattered motion interpolation using Gaussian process regression.

Publications

Uncertainty-aware asynchronous scattered motion interpolation using Gaussian process regression.

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