BACKGROUND/OBJECTIVE Panoramic and periapical radiographs are normally used in impacted third molar teeth surgeries. The aim of the present study was to evaluate and compare the distortion of the erupted third molar teeth on panoramic and periapical radiographs. PATIENTS AND METHODS A total of 44 radiographs were obtained of 22 patients (age range, 18-24 years) referred to the faculty of dent...

BACKGROUND AND AIMS Panoramic radiographs are used for surgical planning of unerupted third molars. The major prob-lems associated with panoramic radiography include unequal magnification and geometric distortion of the image. The purpose of this study was the clinical evaluation of the effect of radiographic distortion on the position and classification of unerpted mandibular third molars. M...

During the last few years, innovative optical design strategies to generate and control image mapping have been successful in producing high-resolution digital imagers and projectors. This new generation of panoramic lenses includes catadioptric panoramic lenses, panoramic annular lenses, visible/IR fisheye lenses, anamorphic wide-angle attachments, and visible/IR panomorph lenses. Given that a...

PURPOSE Preoperative radiographic assessment of the mandibular third molars is essential to prevent inferior alveolar nerve damage during extraction. The purpose of this study was to assess the reliability of panoramic signs of association between the roots of teeth and the canal, and to compare the panoramic signs with cone beam computed tomography (CBCT) findings. MATERIALS AND METHODS CBCT...

OBJECTIVE To report the association of pulp calcification with that of cardiovascular disease (CVD) using digital panoramic dental radiographs. MATERIALS AND METHODS Digital panoramic radiographs of patients referred from the angiography department were included if the patient was under 55 years old and had non-restored or minimally restored molars and canines. An oral and maxillofacial radio...

Today very fast terrestrial laser scanners are available which can be very well combined with panoramic cameras to make 3Dpanoramic recording possible. Due to the very precise depth information of the laser scanner and the high resolved color information provided by the CCD sensor of the panoramic camera 3D-panoramic images of high quality can be obtained. In order to assess the performance of ...

Previous panoramic studies focused on image stitching and the panoramic camera development. In recent years, people began to focus on panoramic scalability issues, the existed methods adopt traditional photogrammetric methods for data processing based on a multi-directional panorama images, using a large number of control points and combined bundle adjustment. Indeed, panorama itself is a kind ...

The capturing of panoramic 360◦ images has become a popular photographic technique. While a complete 360◦ view gives an impressive view of the environment, many people have difficulties to understand the spatial scene arrangement from this flat image. For this reason, we present and discuss various visualizations of panoramic images. Furthermore, we propose an alternative visualization for pano...

In this paper, we present a new image based rendering technology called panoramic mosaics of slit images with depth. By limit camera motion only in a horizontal plane, a slit image with united depth value is used as the element of rendering. Compared with panorama, this method can support the movement of virtual camera. Multiple panoramic mosaics of slit images with depth can be joined up to pr...

This paper proposes a semi-automatic image-based approach for 3-dimensional (3D) modeling of buildings along streets. Image-based urban 3D modeling techniques are typically based on the use of aerial and ground-level images. The aerial image of the relevant area is extracted from publically available sources in Google Maps by stitching together different patches of the map. Panoramic images are...