Occlusion-robust scene flow-based tissue deformation recovery incorporating a mesh optimization model.

ABSTRACT:

Purpose

Tissue deformation recovery is to reconstruct the change in shape and surface strain caused by tool-tissue interaction or respiration, which is essential for providing motion and shape information that benefits the improvement of the safety of minimally invasive surgery. The binocular vision-based approach is a practical candidate for deformation recovery as no extra devices are required. However, previous methods suffer from limitations such as the reliance on biomechanical priors and the vulnerability to the occlusion caused by surgical instruments. To address the issues, we propose a deformation recovery method incorporating mesh structures and scene flow.

Methods

The method can be divided into three modules. The first one is the implementation of the two-step sce

SUBMITTER: Chen J 

PROVIDER: S-EPMC10284992 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature