abstract introductiion. there are a lot of edentulous patients who need complete dentures in any society. one of the most important problems of edentulous patients is remaining dental lesions. atrophy of maxillary or mandibular bone, infections abcesses, tumors and so on are among some other problems. in this study we tried to evaluate the panoramic radiography in order to detect these problems...

nowadays, radiography is a necessary procedure in diagnosis and treatment of patients with dental problems. according to the alara (as low as reasonably achievable) principle, dentists must take radiographs of sufficient quality at the lowest possible radiation dose to the patients. the assessment of patient dose on panoramic radiography is difficult because of dynamic nature of the imaging pro...

In active vision scenarios, the motion of the observer induces an apparent motion in the image plane. One approach for camera motion compensation is the use of panoramic images, representing the scene at the different positions of the camera. In this work, an approach to build spherical panoramic views from a pan-tilt camera is described, which is based on background updating techniques. Intere...

The present work considers corridor–following maneuvers for nonholonomic mobile robots, guided by sensory data acquired by panoramic cameras. The panoramic vision system provides information from an environment with textured walls to the motion control system, which drives the robot along a corridor. Panoramic cameras have a 360 visual field, a capability that the proposed control methods explo...

The purpose of this paper was to review the rationale for the radiographic screening of asymptomatic pediatric patients and to report the prevalence of selected pathologic and developmental conditions using panoramic radiographs. Three observers participated in this retrospective study that utilized panoramic radiographs from 849 subjects, aged 3-9 years, chosen randomly from the School of Dent...

Resumo: In this work, we address the problem of obtaining perceptually acceptable panoramic images which are images of wide fields of view (FOVs). To achieve this goal, we first model the visible information of a scene as a unit sphere and then model the panoramic images as projections from this sphere to an image plane. Desirable properties in panoramic images are transformed in properties tha...

This paper presents a panoramic virtual stereo vision approach to the problem of detecting and localizing multiple moving objects (e.g., humans) in an indoor scene. Two panoramic cameras, residing on different mobile platforms, compose a virtual stereo sensor with a flexible baseline. A novel ‘‘mutual calibration’’ algorithm is proposed, where panoramic cameras on two cooperative moving platfor...

BACKGROUND The aim of this study was to evaluate the validity and the inter- and intra-examiner reliability of panoramic-radiograph-driven findings of different maxillary sinus anatomic variations and pathologies, which had initially been prediagnosed by cone beam computed tomography (CBCT). METHODS After pairs of two-dimensional (2D) panoramic and three-dimensional (3D) CBCT images of patien...

Panoramic photo stitching is the process of combining multiple photographic images with overlapping fields of view to produce a panorama. The process to generate a panoramic view can be divided into three main components image acquisition, image registration, and blending. In this paper, a robust algorithm called Scale Invariant Feature Transform (SIFT) used to extract the features from the ima...

Objectives: The objective of this case report was to determine radioopacities of the cervical region on panoramic radiographs using doppler ultrasound. Methods: 3 patients with radio-opacities of the cervical region on digital panoramic radiographs were referred to doppler ultrasound for further diagnosis. Results: In 2 cases carotid artery calcifications were identified as an irregular radio-o...