Xuguo Yan

Submitted: 28 February 2025 You are already at the latest version Accurate and efficient white-spot defects detection for the surface of galvanized strip steel is one of the most important guarantees for the quality of steel production. It’s a fundamental but “hard” small target detection problem due to its small pixel occupation in low-contrast images.

1. Introduction Hot rolling work rolls serve as essential components and large consumable tools in the hot rolling process. Nevertheless, under long and complex working conditions, they are exposed to high temperatures, alternating stress, and wear [1]. As a consequence, the surface of work rolls undergoes gradual degradation, which has a serious impact on the quality of the final product [2].

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