https://scholars.lib.ntu.edu.tw/handle/123456789/639132
標題: | Automatic Cephalometric Landmark Detection on X-Ray Images Using Object Detection | 作者: | King, Cheng Ho YIN-LIN WANG Lin, Wei Yang Tsai, Chia Ling |
關鍵字: | Attention | Cephalometric X-ray image | Landmark detection | repair strategy | 公開日期: | 1-一月-2022 | 卷: | 2022-March | 來源出版物: | Proceedings - International Symposium on Biomedical Imaging | 摘要: | We propose a new deep convolutional cephalometric landmark detection framework for orthodontic treatment. Our proposed method consists of two major steps: landmark detection using a deep neural network for object detection, and landmark repair to ensure one instance per landmark class. For landmark detection, we modify the loss function of the backbone network YOLOv3 to eliminate the constrains on the bounding box and incorporate attention mechanism to improve the detection accuracy. For landmark repair, a triangle mesh is generated from the average face to eliminate superfluous instances, followed by estimation of missing landmarks from the detected ones using Laplacian Mesh. Trained and evaluated on a public benchmark dataset from IEEE ISBI 2015 grand challenge, our proposed framework obtains comparable results compared to the state-of-the-art methods for cephalometric landmark detection, and demonstrates the efficacy of using a deep CNN model for accurate object detection of landmarks defined by only a single pixel location. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/639132 | ISBN: | 9781665429238 | ISSN: | 19457928 | DOI: | 10.1109/ISBI52829.2022.9761506 |
顯示於: | 醫學院附設醫院 (臺大醫院) |
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