Alibaba Terminal Technology
Sep 23, 2021 · Artificial Intelligence
Real‑Time Document Corner Detection on Mobile: Heatmap‑Based Keypoint Algorithms Explained
This article reviews the end‑to‑end pipeline for real‑time document corner detection on mobile devices, breaks down the keypoint detection workflow into image processing, encoding, network modeling and decoding, compares heatmap‑based and fully‑connected approaches, introduces a differentiable DSNT decoding method with unbiased coordinate transformations, and presents experimental results and conclusions on its effectiveness and limitations.
DSNTMobile AIdocument-analysis
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