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JapanManufacturing2015 – ongoing

Nippon Steel

Deep-learning detection of displaced coil cushioning

Nippon Steel detected about 80% of coil-cushioning problems with crane-mounted cameras

WorkingVendor case studyVendor ↗

Problem

Protective cushioning could shift or fall while cranes moved steel coils, exposing products to scratches and dents. Different lighting conditions and coil sizes made conventional image processing difficult.

Approach

Nippon Steel worked with NEC to use RAPID deep learning at its Nagoya works after initial discussions in June 2015. The team generated altered training images to represent cushioning failures. Cameras on cranes sent images wirelessly to a central server for detection.

Results

about 80%cushioning-problem detection rate reported by NECVendor case study[1]
less than 1%false-detection rate reported by NECVendor case study[1]

Takeaway

False detections mattered because unnecessary line stops reduced productivity. The system balanced detection coverage against those interruptions.

Categories

Business function
Production and quality
Innovation type
Process innovation
AI technology
Computer vision
Evidence
Vendor case study

Sources

  1. 日本製鉄株式会社様: 導入事例
    NEC9 Mar 2020Vendor publication

Source summaries

[1]NEC9 Mar 2020

NEC described the deployed camera inspection system at Nagoya works. It reported detection of about 80% of cushioning problems, with false detections below 1%.

Full details are in the original sources.

Added 1 Nov 2026 · Updated 1 Nov 2026
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