نتایج جستجو برای: panoramic projection

تعداد نتایج: 68816  

1999
Shmuel Peleg Moshe Ben-Ezra

Full panoramic images, covering 360 degrees, can be created either by using panoramic cameras or by mosaicing together many regular images. Creating panoramic views in stereo, where one panorama is generated for the left eye, and another panorama is generated for the right eye is more problematic. Earlier attempts to mosaic images from a rotating pair of stereo cameras faced severe problems of ...

2004
Danilo Schneider

Digital panoramic cameras have found growing interest in photogrammetry in the past few years. Originally primarily being used for purposes such as web-based animation or surveillance, panoramic cameras have meanwhile reached a performance, which makes them an interesting data acquisition tool for a number of applications in photogrammetry. New developments in sensor technology have enabled the...

Journal: :British Dental Journal 2007

Introduction: Nowadays, the use of panoramic radiographs for evaluation of uprighting and root parallelism, after the closure of spaces and before the debanding of fixed appliances, often been accepted, and the use of radiography to evaluate the results at the end of orthodontic treatment is discussed.It is not clear whether panoramic radiography reflects the exact mesiodistal position of the ...

Journal: :American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics 2006
Sug-Joon Ahn Tae-Woo Kim Dong-Yul Lee Dong-Seok Nahm

INTRODUCTION Panoramic radiographs are routinely used in orthodontic diagnosis and treatment planning. It would be useful if these radiographs could also provide information about internal derangement (ID) of the temporomandibular joint (TMJ). METHODS The sample consisted of 168 condyles in 84 women. They underwent panoramic radiography on 1 of 3 machines and bilateral magnetic resonance imag...

2011
Helen JENNY Bernhard JENNY William CARTWRIGHT Lorenz HURNI

While digital panoramic photography taken along travelling routes is very popular, digital panoramic strip maps are virtually nonexistent. In this article, we explore the characteristics of panoramic strip maps and provide an interactive method for their digital creation, focusing on the challenge of straightening curved routes. The resulting software Terrain Bender implements a geometric defor...

2004
Allan G. Farman

Understand the limitations of panoramic radiography in detecting systemic diseases. For the purposes of this report, “systemic disease” will be interpreted as conditions that are spread out within the body rather than localized strictly to the tissues of the oral cavity. Since it would take many volumes to review all such conditions, the intent of this issue of Panoramic Imaging News is to revi...

2015
Jong-Woong Park Khanthaly Symkhampha Kyung-Hoe Huh Won-Jin Yi Min-Suk Heo Sam-Sun Lee Soon-Chul Choi

PURPOSE Panoramic radiographs taken using conventional chin-support devices have often presented problems with positioning accuracy and reproducibility. The aim of this report was to propose a new bite block for panoramic radiographs of anterior edentulous patients that better addresses these two issues. MATERIALS AND METHODS A new panoramic radiography bite block similar to the bite block fo...

Journal: :journal of dental research, dental clinics, dental prospects 0
javad yazdani farzad esmaeili masume johari

background and aims. panoramic radiographs are used for surgical planning of unerupted third molars. the major problems 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. mat...

Journal: :journal of dentistry, tehran university of medical sciences 0
leila khojastepour associated professor, department of oral radiology, school of dentistry, shiraz university of medical sciences, shiraz, iran. pegah bronoosh assistant professor, department of oral radiology, school of dentistry, shiraz university of medical sciences, shiraz, iran. shahdad khosropanah associated professor, department of cardiology, school of medicine, shiraz university of medical sciences, shiraz, iran. elham rahimi student research committee, school of medicine, shiraz university of medical sciences, shiraz, iran.

to report the association of pulp calcification with that of cardiovascular disease (cvd) using digital panoramic dental radiographs.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 radiologist evaluated the images for pul...

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