Yoshihiko Kawai

Polygon Pixel IoU: Similarity Metric between Polygons with Different Number of Vertices for Arbitrary-Shaped Text Spotting

Existing arbitrary-shaped text (ArT) spotting models have used coordinate-based error (CBE) loss to optimize polygon region detection. Optimization using CBE loss requires a fine-grained ground truth (FineGT), which is a fixed-length list of polygon vertices. However, not all datasets have FineGT, a…