An automatic method of synthesizing panoramic radiograph by unwrapping dental CT image

Han, Bing; Chen, Liang; Cai, Zhenning; Deyu, Pu Fang Li; Li, Shuyu; Fan, Yubo

doi:10.1109/mec.2011.6025657

Cited by 8 publications

(2 citation statements)

References 7 publications

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“…To determine the shape of the dental arch in different patients, Bae et al [21] used tooth position-controlled cubic B-splines to successfully fit different patient arch shapes. In terms of automatic reconstruction of panoramic images [22][23][24], Sa-Ing V et al [25] introduced a dental arch detection algorithm based on threshold and image morphology algorithms. The dental arch calculation is simplified by selecting a slice of the original CBCT for downsampling.…”

Section: Introductionmentioning

confidence: 99%

A Fast Automatic Reconstruction Method for Panoramic Images Based on Cone Beam Computed Tomography

et al. 2022

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Panoramic images have been widely used in the diagnosis of dental diseases. In the process of panoramic image reconstruction, the position of the dental arch curve usually affects the quality of display content, especially the completion level of the panoramic image. In addition, the metal implants in the patient’s mouth often lead the contrast of the panoramic image to decrease. This paper describes a method to automatically synthesize panoramic images from dental cone beam computed tomography (CBCT) data. The proposed method has two essential features: the first feature is that the method can detect the dental arch curve through axial maximum intensity projection images over different ranges, and the second feature is that our method is able to adjust the intensity distribution of the implant in critical areas, to reduce the impact of the implant on the contrast of the panoramic image. The proposed method was tested on 50 CBCT datasets; the panoramic images generated by this method were compared with images attained from three other commonly used approaches and then subjectively scored by three experienced dentists. In the comprehensive image contrast score, the method in this paper has the highest score of 11.16 ± 2.64 points. The results show that the panoramic images generated by this method have better image contrast.

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Section: Introductionmentioning

confidence: 99%

A Fast Automatic Reconstruction Method for Panoramic Images Based on Cone Beam Computed Tomography

et al. 2022

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“…A cubic spline was used to reconstruct the panoramic images. Bing et al (2011) presented an automatic procedure to extract panoramic dental images, however, with a high computational cost. They applied a projection of the volumetric image with the MIP technique for automatically selecting the dental arch through the algorithm proposed by Otsu (1979).…”

Section: Introductionmentioning

confidence: 99%

Reconstruction of Panoramic Dental Images Through Bézier Function Optimization

Amorim

Moraes

Silva

et al. 2020

Front. Bioeng. Biotechnol.

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Computed tomography (CT) and X-ray images have been extensively used as a valuable diagnostic tool in dentistry for surgical planning and treatment. Nowadays, dental cone beam CT has been extensively used in dental clinics. Therefore, it is possible to employ three-dimensional (3D) data from the CT to reconstruct a two-dimensional (2D) panoramic dental image that provides a longitudinal view of the mandibular region of the patient, avoiding an additional exposure to X-ray. In this work, we developed a new automatic method for reconstructing 2D panoramic images of the dental arch based on 3D CT images, using Bézier curves and optimization techniques. The proposed method was applied to five patients, some of them with missing teeth, and smooth panoramic images with good contrast were obtained.

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