Two-stage shelf audit: YOLO finds the products, embeddings can't tell sibling SKUS apart. What should Stage 2 be? [P]

Excerpt

Help: Project l'm building a shelf audit tool. A photo goes through YOLO, which crops each product, and then I embed the crop and search a small gallery of reference photos to get the SKU. New products should be addable by just dropping in photos, no detector retrain. Detection is basically fine. ldentification is not. Same brand, same bottle, different flavor or size (like 1.25 L vs 2 L) and the nearest neighbor is often the wrong SKU. Correct and wrong scores overlap, so a threshold either mis