scholarly journals Primena digitalne video tehnike u ortopediji

2006 ◽  
Vol 53 (4) ◽  
pp. 99-104
Author(s):  
C. Vucetic ◽  
D. Milovanovic ◽  
B. Dulic ◽  
I. Dimitrijevic ◽  
N. Kalezic ◽  
...  
Keyword(s):  
Medical Devices ◽  
Digital Imaging ◽  
Digital Images ◽  
Digital Technologies ◽  
Surgical Patient ◽  
Clinical Use ◽  
Digital Imaging Technology ◽  
Case Documentation ◽  
Care Information

Digital video technologies are new and powerful tools with wide applications in orthopedic. Already integral to several common medical devices, digital images can be used for case documentation and presentation as well for diagnostic and surgical patient care information. Digital technologies allow easy manipulation of photographic, video and graphic materials in ways that were impossible with conventional techniques. Educational presentation has been transformed by use of computers and digital projectors. Understanding the basic foundations of digital imaging technology is important for effectively creating digital images, videos and presentations. In this review, we are going to discuss some of the issues that are raised by digital imaging in orthopedics, digital image processing, as well as, we are giving some recommendations for good quality of pre-, post- and intra-operative photographs in clinical use.

scholarly journals A protocol for a systematic review investigating the factors influencing the statistical planning, design, conduct, analysis and reporting of trials

2020 ◽  
Vol 3 ◽  
pp. 36
Author(s):  
Marina Zaki ◽  
Marie Galligan ◽  
Lydia O'Sullivan ◽  
Declan Devane ◽  
Eilish McAuliffe
Keyword(s):  
Systematic Review ◽  
Medical Devices ◽  
Methodological Approach ◽  
Clinical Use ◽  
Key Factors ◽  
Eligibility Criteria ◽  
Factors Influencing ◽  
Comprehensive Search ◽  
Statistical Planning

Trials can be defined as prospective human research studies to test the effectiveness and safety of interventions, such as medications, surgeries, medical devices and other interventions for the management of patient care. Statistics is an important and powerful tool in trials. Inappropriately designed trials and/or inappropriate statistical analysis produce unreliable results, with limited clinical use. The aim of this systematic literature review is to identify, describe and synthesise factors contributing to or influencing the statistical planning, design, conduct, analysis and reporting of trials. This protocol will describe the methodological approach taken for the following: conducting a systematic and comprehensive search for relevant articles, applying eligibility criteria for the inclusion of such articles, extracting data and information, appraising the quality of the articles, and thematically synthesizing the data to illuminate the key factors influencing statistical aspects of trials.

Digital Imaging for Photographic Collections: Foundations for Technical Standard

2000 ◽  
Vol 29 (1) ◽  
Author(s):  
Robin Dale
Keyword(s):  
Image Quality ◽  
Digital Imaging ◽  
Digital Images ◽  
National Endowment ◽  
Technical Standard ◽  
Digital Form ◽  
Project Report

The goal of this project report, sponsored by The National Endowment for the Humanities, Division of Preservation and Access, is “to offer some guidance to libraries, archives, and museums in their efforts to convert photographic collections to digital form.” To date, there are no standards for measuring the quality of digital images created from photographs. Therefore, this report is primarily concerned with developing tools to measure image quality. Other technical and managerial issues related to digital imaging projects in general are also addressed.

The Importance of Gamma Correction in the Acquisition, Display and Hardcoy of Digital Images

1997 ◽  
Vol 3 (S2) ◽  
pp. 343-344
Author(s):  
John M. Mackenzie
Keyword(s):  
Digital Imaging ◽  
Digital Images ◽  
Gamma Correction ◽  
Critical Problem ◽  
Linear Portion ◽  
Gamma Functions ◽  
Recorded Image ◽  
Log Linear ◽  
Logarithmic Functions

Digital imaging is replacing conventional photography in many applications. As the quality of digital images improves, more applications for this technology will be found. This talk will examine the importance of gamma correction in digital imaging.Although many researchers believe that digital imaging will soon replace photography, it is probably more correct to think of digital imaging as an enhancement to photography. The most critical problem with translating our knowledge of photography to digital imaging is that photography operates exclusively via logarithmic functions. The exposure versus density curves common to photography have an x axis that is logarithmic. The development curves for film and paper are also logarithmic. The slope of the log-linear portion of this curve is designated gamma. All operations normally performed in the darkroom whether processing film or prints manipulate the gamma functions to achieve the best recorded image. The first rule that should be obvious is that every image has a different optimal gamma and every different image medium (whether graded photographic paper or the density of print on a digital image printer) will change that optimal gamma.

scholarly journals A protocol for a systematic review investigating the factors influencing the statistical planning, design, conduct, analysis and reporting of clinical trials

2020 ◽  
Vol 3 ◽  
pp. 36
Author(s):  
Marina Zaki ◽  
Marie Galligan ◽  
Lydia O'Sullivan ◽  
Declan Devane ◽  
Eilish McAuliffe
Keyword(s):  
Clinical Trials ◽  
Medical Devices ◽  
Methodological Approach ◽  
Clinical Use ◽  
Key Factors ◽  
Eligibility Criteria ◽  
Factors Influencing ◽  
Comprehensive Search ◽  
Statistical Planning

Clinical trials can be defined as prospective human research studies to test the effectiveness and safety of interventions, such as medications, surgeries, medical devices and other interventions for the management of patient care. Statistics is an important and powerful tool in clinical trials. Inappropriately designed trials and/or inappropriate statistical analysis produce unreliable results, with limited clinical use. The aim of this systematic literature review is to identify, describe and synthesise factors contributing to or influencing the statistical planning, design, conduct, analysis and reporting of clinical trials. This protocol will describe the methodological approach taken for the following: conducting a systematic and comprehensive search for relevant articles, applying eligibility criteria for the inclusion of such articles, extracting data and information, appraising the quality of the articles, and thematically synthesizing the data to illuminate the key factors influencing statistical aspects of clinical trials.

Digital Imaging Technology

2021 ◽  
pp. 1-31
Author(s):  
Katherine Thomson-Jones
Keyword(s):  
Digital Imaging ◽  
Digital Technology ◽  
Cognitive Skills ◽  
Digital Images ◽  
Digital Display ◽  
Imaging Technology ◽  
Digital Imaging Technology ◽  
In Virtue Of

In this chapter, I examine one sense in which digital images are digital; namely, in virtue of being made and presented with digital technology. I begin by outlining some general theoretical commitments regarding the nature and conditions of appreciation. Broadly speaking, the appreciation of art is to be understood in terms of the differential exercise of cognitive skills. Such skills can be exercised when an appreciator takes into account the distinctively digital technology involved in both the production and the screening of digital images. I give some important background on the functioning of computers and digital display tools. This background helps us understand the debate surrounding potential aesthetic losses and gains when working creatively with digital, as opposed to analog, tools.

scholarly journals Kajian Aspek Fotografis dalam Tehnik Olah Digital Poster Film “ Sang Pemimpi ”

Humaniora ◽  
2011 ◽  
Vol 2 (1) ◽  
pp. 182
Author(s):  
Noor Latif CM
Keyword(s):  
Digital Imaging ◽  
Visual Communication ◽  
Element Composition ◽  
Communication Media ◽  
Visual Appearance ◽  
Commercial Market ◽  
Digital Imaging Technology ◽  
Communication Work ◽  
Process Ability

As the advancement of digital imaging technology, this urges internal actors to be more accurate and explorative in producing visual communication work with photography element and digital touching process. Digital process ability with no photographical ability will produce raw and anomaly visual work of art. Besides, audience is smarter and more appreciative towards quality of visual appearance in several modern communication media. Film poster of Sang Pemimpi is a case reflection of general digital in visual communication work that has gap among communication product content according to the brand of the film. Photography element composition is melted with bondless pile among the objects. Logical photography as bonding bridge of visual logic is weak in execution; where we could see it has less digital process commercial market need with the supporting resources. 

Digital Imaging: Emerging Technologies

2001 ◽  
Vol 7 (S2) ◽  
pp. 824-825
Author(s):  
John M. Mackenzie
Keyword(s):  
Image Quality ◽  
Digital Imaging ◽  
Digital Technology ◽  
Emerging Technologies ◽  
Cost Effective ◽  
Imaging Technology ◽  
Naked Eye ◽  
Inkjet Printers ◽  
Digital Imaging Technology

This invited paper will address several emerging technologies that have an impact on scientists moving into digital imaging technology and raise a few concerns about this digital technology that may not have reached our group.The quality of inkjet printers has moved forward at a staggering rate. The latest printers from Epson (the 900 series) have achieved a milestone in image quality that is very significant and yet is difficult to find in the specification sheet. The “dots” which the company claims can be as small as 3 picoliters are sufficiently small that they cannot be seen with the naked eye. with an improved algorithm, the image quality in 1440 × 720 mode is as good as any dye-sublimation printer. The current 980 when printing in 1440 mode prints at twice the speed as the older 900. At only $250, it actually becomes cost effective to replace 900's with 980's solely based on the amount of time that is saved (even at a University).

scholarly journals Ethics and Digital Imaging

2006 ◽  
Vol 14 (1) ◽  
pp. 40-41 ◽  
Author(s):  
J. M. Mackenzie ◽  
M. G. Burke ◽  
T. Carvalho ◽  
A. Eades
Keyword(s):  
Digital Imaging ◽  
Scientific Community ◽  
Digital Images ◽  
Image Resolution ◽  
Print Advertisements ◽  
The Past ◽  
Time Required ◽  
The Cost ◽  
Publication Quality

The amazing growth of digital imaging in the past several years has blurred the line between "real" images and those that are digitally enhanced. In most of our movies and print advertisements, we see amazing effects that create images that look real but are not.For the last several decades film has been the predominant method that scientists employ to record the images viewed through their microscopes. Film has been readily accepted as a valid, archival recording medium because it was difficult to alter once the exposure was made and the film or print developed. The improvements in computer power and image resolution, coupled with environmental considerations, have spurred the scientific community to replace photographic processes with digital images. Processes that took hours and days are now performed in minutes. Imaging programs like Adobe Photoshop can perform all of the same photographic steps that required a darkroom, and then can do much more. The image can be “burned” onto a CD or DVD disk which is difficult to alter. Printer technology has advanced so rapidly that inkjet prints rival photographic prints. Images are often distributed digitally and viewed on displays that continue to improve. As the hardware for digital imaging improves, the quality of digital images is approaching photographic quality for a fraction of the cost, and publication quality images are produced in a fraction of the time required for film-based photography.

scholarly journals Digital Imaging for TEM - Part III Characterizing Digital Images

1995 ◽  
Vol 3 (1) ◽  
pp. 12-13
Author(s):  
Anthony D. Buonaquisti
Keyword(s):  
Digital Imaging ◽  
Digital Images ◽  
Imaging System ◽  
Hard Copy ◽  
High Quality ◽  
Image Storage ◽  
Output Device ◽  
Recent Interest ◽  
Digital Imaging System

Last months issue of this publication contained the second article article in this series on digital imaging far TEM - and listed factors that may be stimulating the recent interest in digilal imaging for TEM. Most of the factors are concerned with issues of functionality. A digital imaging system can enhance TEM operation, image storage, image processing and communication. Significantly, the surge in interest was not linked to claims that digital images have better detail than images captured using sheet film. This is a pivotal issue for some microscopists. Nevertheless, my experience has been that many rnicroscopists, even skeptical microscopists, are surprised at the quality of output from a modern digital imaging system when using a high quality output device to produce hard copy images.

The bright future of digital imaging in scanning electron microscopy

1993 ◽  
Vol 51 ◽  
pp. 768-769
Author(s):  
M. T. Postek ◽  
A. E. Vladar
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Digital Imaging ◽  
High Speed ◽  
High Performance ◽  
Mass Storage ◽  
Analog To Digital ◽  
Central Processing ◽  
Digital Imaging Technology ◽  
Scanning Electron

One of the major advancements applied to scanning electron microscopy (SEM) during the past 10 years has been the development and application of digital imaging technology. Advancements in technology, notably the availability of less expensive, high-density memory chips and the development of high speed analog-to-digital converters, mass storage and high performance central processing units have fostered this revolution. Today, most modern SEM instruments have digital electronics as a standard feature. These instruments, generally have 8 bit or 256 gray levels with, at least, 512 × 512 pixel density operating at TV rate. In addition, current slow-scan commercial frame-grabber cards, directly applicable to the SEM, can have upwards of 12-14 bit lateral resolution permitting image acquisition at 4096 × 4096 resolution or greater. The two major categories of SEM systems to which digital technology have been applied are:In the analog SEM system the scan generator is normally operated in an analog manner and the image is displayed in an analog or "slow scan" mode.

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