Figure 1From: A mesh generation and machine learning framework for Drosophilagene expression pattern image analysisLeft: Subdivision of an ellipse (pink) based on equal radial angles (dashed black lines) leads to inaccurate boundary interpolation (blue). Center: A more accurate subdivision (solid black lines) based on equal lengths of interpolating segments. Right: Euclidean projection (q) from a point (p) on the ellipse (green) onto the boundary of the embryo (red) is more accurate than a projection along a radial line (r).Back to article page