Bézier Tree Encoding
A typical fundus produces hundreds of cubic Bézier segments. Each polyline chunk is fit to a cubic Bézier curve with endpoints clamped to chunk endpoints and interior control points estimated by least squares. The encoding is rasterized in…
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A typical fundus produces hundreds of cubic Bézier segments. Each polyline chunk is fit to a cubic Bézier curve with endpoints clamped to chunk endpoints and interior control points estimated by least squares. The encoding is rasterized into a three-channel 512 by 512 ControlNet hint. The vessel mask is skeletonized and split into ordered open polylines at endpoints and branch nodes.