OBJECTIVES Obtaining the proper working length in endodontic treatment is essential. The aim of this study was to compare the working length (WL) assessment of small diameter K-files using the two different digital imaging methods. METHODOLOGY The samples for this in-vitro experimental study consisted of 40 extracted single-rooted premolars. After access cavity preparation, the ISO files no. ...

Additional copies are available for $20.00 from the address noted above. Orders must be prepaid, with checks made payable to the Council on Library and Information Resources. Library. He wrote his first assembly language " Hello, World " program in 1978, and has used C, Perl, VisualBasic, and Java to develop business applications and digital library delivery systems. He is currently the system ...

Digital imaging is becoming widely used in diagnostic radiology, and digital subtraction angiography (DSA) is now generally accepted [1-3]. Several studies have evaluated digital imaging using a computed radiography system for chest examinations [4-10] and for excretory urography [11] . This prospective study uses receiver operating curve analysis [12 , 13] to compare the diagnostic accuracy of...

The problem of real-time photorealistic imaging of digital terrain is discussed. New technique for specifying digital terrain by scalar perturbation functions without its approximation by polygons is considered. A recursive algorithm for object space subdivision with masking of invisible surfaces and an effective technique of projective transformation for perspective imaging are proposed. The p...

Aims: The purpose of this review includes the following: 1) to identify indications for volumetric X-ray digital linear tomosynthesis by using a filtered back projection (FBP) algorithm and 2) to compare X-ray digital linear tomosynthesis, X-ray digital radiography, conventional tomography, and computed tomography. Review: The methods include the following: 1) an overview of the tomosynthesis s...

This paper gives a brief introduction into the background, application, and design of Wavefront Coding imaging systems. Wavefront Coding is a general technique of using generalized aspheric optics and digital signal processing to greatly increase the performance and/or reduce the cost of imaging systems. The type of aspheric optics employed results in optical imaging characteristics that are ve...

Additional copies are available for $20.00 from the address noted above. Orders must be prepaid, with checks made payable to the Council on Library and Information Resources. Library. He wrote his first assembly language " Hello, World " program in 1978, and has used C, Perl, VisualBasic, and Java to develop business applications and digital library delivery systems. He is currently the system ...

This paper gives a brief introduction into the background, application, and design of Wavefront Coding imaging systems. Wavefront Coding is a general technique of using generalized aspheric optics and digital signal processing to greatly increase the performance and/or reduce the cost of imaging systems. The type of aspheric optics employed results in optical imaging characteristics that are ve...

Neutron imaging finds applications in many branches of science and industry such as in nondestructive testing, material science etc. Conventional imaging of neutrons has been carried out mostly using analogue technology such as screen film imaging. Making transition from analogue to digital could bring several advantages such as fast image acquisition and display, implementation of image proces...