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Comparative Performance of YOLO Versions for Pallet Detection SCARA Robot Dilham Hidayatul Fajri; Risfendra
Journal of Industrial Automation and Electrical Engineering Vol. 3 No. 1 (2026): Vol 3 No 1 (2026): June 2026
Publisher : Department of Electrical Engineering Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/05dbyr50

Abstract

The rapid evolution of the You Only Look Once (YOLO) object detection family from YOLOv8 to YOLO26 has produced architecturally diverse models whose relative suitability for structured industrial detection tasks remains unevaluated. This study aims to conduct a controlled comparative performance evaluation of six YOLO variants (YOLOv8, YOLOv9, YOLOv10, YOLO11, YOLOv12, and YOLO26) on an industrial pallet detection dataset to identify the optimal model for Vision-Guided Robotics (VGR) pick and place automation. All models were trained under identical conditions 50 epochs, batch size 16, 640×640 input resolution on a dataset of 4,366 annotated images across three classes (pallet_pick, pallet_place_1, pallet_place_2) using a 70/20/10 train/validation/test split. Performance was assessed using Precision, Recall, mAP@0.5, mAP@0.5:0.95, and training time. All six models achieved perfect Precision (1.0000), Recall (1.0000), and mAP@0.5 (0.9950). Differentiation emerged at mAP@0.5:0.95, where YOLOv9m achieved the highest final-epoch value (0.9776) and YOLO26m achieved the highest peak value (0.9805) with the fastest training time (80.8 minutes, 26.3% faster than YOLOv8). YOLO26 is recommended as the optimal model for industrial pallet detection, offering the best combination of localization accuracy, training efficiency, and deployment readiness through its NMS-free and DFL-free architecture.