journal article·2025-08-11Open access

A Shape-Aware Lightweight Framework for Real-Time Object Detection in Nuclear Medicine Imaging Equipment

Weiping Jiang, Guozheng Xu, Aiguo Song

Applied Sciences· Volume 15· Issue 16

Abstract

Manual calibration of nuclear medicine scanners currently relies on handling phantoms containing radioactive sources, exposing personnel to high radiation doses and elevating cancer risk. We designed an automated detection framework for robotic inspection on the YOLOv8n foundation. It pairs a lightweight backbone with a shape-aware geometric attention module and an anchor-free head. Facing a small training set, we produced extra images with a GAN and then fine-tuned a pretrained network on these augmented data. Evaluations on a custom dataset consisting of PET/CT gantry and table images showed that the SAM-YOLOv8n model achieved a precision of 93.6% and a recall of 92.8%. These results demonstrate fast, accurate, real-time detection, offering a safer and more efficient alternative to manual calibration of nuclear medicine equipment.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: Advanced Neural Network Applications · Advanced X-ray and CT Imaging · Medical Image Segmentation Techniques

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Instrument Science and Engineering, Southeast University, Nanjing 210096, China

Jiangsu Institute of Metrology, Nanjing 210023, China

College of Automation & College of Artificial Intelligence, Nanjing University of Posts and Telecommunications, Nanjing 210023, China

Funding

Science and Technology Program of State Administration for Market Regulation of China

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