Adaptive pre-processing methods for increasing the accuracy of segmentation of dental X-RAY images
DOI:
https://doi.org/10.30837/2522-9818.2024.3.029Keywords:
artificial intelligence; deep learning; image segmentation; panoramic x-rays of teeth; preliminary processing; CLAHE; bilateral filterAbstract
The subject of research in the article is the effectiveness of adaptive methods of preprocessing of medical images, in particular adaptive bilateral filter and modified CLAHE, in the tasks of segmentation of dental X-ray images. These methods make it possible to preserve important image details and effectively reduce noise, even in cases of high variability of images coming from different sources. The goal of the work is to study the impact of adaptive preprocessing methods on increasing the accuracy of segmentation of medical images and to determine the optimal combination of methods that provide the best results in segmentation tasks. The article addresses the following tasks: experimental comparison of adaptive preprocessing methods with traditional approaches, evaluation of segmentation efficiency using metrics such as Dice Score, Jacquard Coefficient (IoU Score), Precision and Sensitivity/Completeness (Recall)), as well as analysis of the effect of pre-processing on the quality of segmentation. The following methods are used: mathematical modeling, neural network training based on the U-Net model with a pre-trained timm-resnest101e encoder, image scaling to 512x512 pixels, training with a fixed learning rate of 0.001. The following results were obtained: the combined use of the adaptive bilateral filter and the modified CLAHE provided the highest segmentation quality indicators (Dice Score 0.9603 and Jacquard Coefficient (IoU Score) 0.94501), surpassing traditional methods. This proves the advantage of adaptive approaches in preserving the contours of objects and reducing noise. Conclusions: the application of adaptive preprocessing methods significantly improves the accuracy of segmentation of medical images. The combined approach including the adaptive bilateral filter and the modified CLAHE is the most effective for medical imaging tasks, which increases the accuracy of diagnosis and the reliability of automated decision support systems.
References
Список літератури
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References
Komenchuk, O. V. & Mokin, O. B. (2023), "Analysis of Methods for Preprocessing of Panoramic Dental X-Rays for Image Segmentation Tasks", Visnyk of Vinnytsia Politechnical Institute, vol. 170, No. 5, Р. 41–49. DOI: https://doi.org/10.31649/1997-9266-2023-170-5-41-49
Aljabri, M. et al. (2022), "Towards a better understanding of annotation tools for medical imaging: a survey", Multimedia Tools and Applications. Р. 25877–2591. DOI: https://doi.org/10.1007/s11042-022-12100-1
Abdi, A. H., Kasaei, S. & Mehdizadeh, M. (2015), "Automatic segmentation of mandible in panoramic x-ray", Journal of Medical Imaging, Vol. 2, No. 4, 44003 р. DOI: https://doi.org/10.1117/1.jmi.2.4.044003
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Shirai, K., Sugimoto, K. & Kamata, S.-i. (2022), "Adjoint Bilateral Filter and Its Application to Optimization-based Image Processing", APSIPA Transactions on Signal and Information Processing, Vol. 11, No. 1. DOI: https://doi.org/10.1561/116.00000046
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Fan, R. et al. (2020), "Smart Image Enhancement Using CLAHE Based on an F-Shift Transformation during Decompression", Electronics, Vol. 9, No. 9, 1374 р. DOI: https://doi.org/10.3390/electronics9091374
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