Intravascular OCT lumen and bifurcation reconstruction
Intravascular optical coherence tomography (IVOCT) records vessel cross-sections along a pullback. This project separates the main lumen, full lumen and bifurcation regions, connecting frame-level segmentation with longitudinal inspection and three-dimensional reconstruction. Keeping branch openings distinct from the main vessel wall is central to interpreting coronary side branches.
From sequential frames to a vessel view
The reconstruction starts with contours or segmented regions from successive OCT frames. Frame order, pullback spacing and scale determine the longitudinal geometry. Branch-opening contours are shown as highlighted boundaries so that their location and orientation can be compared with the surrounding vessel. The browser view adds cardiac motion and a simulated projection for spatial inspection.
My contribution
My work covers source-level data auditing, multi-output segmentation, temporal analysis, failure-case review and device inference. Evaluation separates lumen and bifurcation performance rather than using a high lumen score as evidence of accurate branches. ONNX inference checks connect the research workflow with device-side operation.
Evidence and scope
The project summary records source-grouped evaluation and inference-equivalence checks. The web visualization is an illustration of anatomy and opening geometry; it is not a quantitative segmentation benchmark or a clinically validated patient registration. The animated rendering and the algorithm evaluation answer different questions.