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Author: Kenneth Compton Publisher: SPIE Press ISBN: 9780819441447 Category : Business & Economics Languages : en Pages : 140
Book Description
Annotation This tutorial fully explains cathode ray tube (CRT) based displays in a single, easy-to-understand narrative. Detailed explanations and insights into performance properties and safety limits of the various glass melts follow a discussion of the fundamentals. In addition, other topics covered include the architectural differences between color and monochrome, the cathode (electron beam source) as a failure mode for all CRTs, types of cathodes available and their life expectancy. Phosphors, the metrics involved in defining a pixel and how distortions can influence the net results, defining CRT compliance with the DICOM Grayscale Standard Display Function (GSDF), test patterns and how they provide information about display performance, and video cards round out this informative work.
Author: Kenneth Compton Publisher: SPIE Press ISBN: 9780819441447 Category : Business & Economics Languages : en Pages : 140
Book Description
Annotation This tutorial fully explains cathode ray tube (CRT) based displays in a single, easy-to-understand narrative. Detailed explanations and insights into performance properties and safety limits of the various glass melts follow a discussion of the fundamentals. In addition, other topics covered include the architectural differences between color and monochrome, the cathode (electron beam source) as a failure mode for all CRTs, types of cathodes available and their life expectancy. Phosphors, the metrics involved in defining a pixel and how distortions can influence the net results, defining CRT compliance with the DICOM Grayscale Standard Display Function (GSDF), test patterns and how they provide information about display performance, and video cards round out this informative work.
Author: Publisher: ISBN: Category : Languages : en Pages : 91
Book Description
This study explores several different image quality metrics currently employed by the visual display community in the context of color CRT display technology. The specific techniques included in the study are the Modulation Transfer Function, the Contrast Threshold/Sensitivity Function, the Modulation Transfer Function Area, the Integrated Contrast Sensitivity metric, and the Square-Root Integral metric. These metrics include and are based on visual psychometric data and suggest that operator performance may be predicted from the objective, image quality data.
Author: Publisher: ISBN: Category : Languages : en Pages : 0
Book Description
This report presents a survey of the performance of twenty color CRT monitors. All have addressability of either 1600 x 1280 or 1600 x 1200 pixels, and image sizes from 20 to 21 inches. The report provides: Comparisons of the performance of the twenty monitors, A two page summary of the performance of each of the twenty monitors. The results are given in a standardized graphical format. The purpose of the report is to provide an overview of the performance of these monitors. To do that, we have concentrated on the most important monitor parameters, providing the reader with information that will allow a rapid and timely review. These parameters are: Luminance (brightness) Resolution (measured and interpreted in several ways), Convergence ; Waviness (distortion). In color monitors, the desired image can beat with the phosphor dots or stripes leading to a disturbing pattern of wavy bars called Mofre'. Mofre' is difficult to quantify; it is very apparent to the eye in some images, but not in others. In this report we refer to Mofre' only in the Comments sections of the individual monitor reports in the following section.
Author: Jon C. Leachtenauer Publisher: SPIE Press ISBN: 9780819444202 Category : Art Languages : en Pages : 298
Book Description
As a consultant to the US Army on image quality and interpretation measurement, Leachteneauer provides advice on maintaining image quality in the selection and operation of electronic displays. After introducing the types of display technologies available, the concepts of image chain and the display as a system, he treats specifics of the operation and performance of such equipment and the human visual system. The accompanying CD contains image test targets described in the appendix. SPIE is the Society of Photo-Optical Instrumentation Engineers, of the International Society for Optical Engineering. Annotation : 2004 Book News, Inc., Portland, OR (booknews.com).
Author: Robert W. Verona Publisher: ISBN: Category : Languages : en Pages : 24
Book Description
This paper describes a direct measuring technique for determining the image quality of raster-scanned cathode-ray tube (CRT) displays. This technique is based on the Modulation Transfer Function (MTF) theory and human visual psychophysical data. The rationale for the technique is discussed from a theoretical as well as functional viewpoint. The instrumentation necessary to obtain these measures in manual and automatic modes is discussed. Data obtained using this measurement technique are analyzed and compared with the theoretical performance of the displays. The image quality of new CRT displays procured for the U.S. Army's Advanced Attack Helicopter is being specified and tested using this direct measuring technique. (Author).
Author: Mohammad A. Karim Publisher: CRC Press ISBN: 1000148033 Category : Technology & Engineering Languages : en Pages : 872
Book Description
Covers principles, applications, and issues pertaining to all major elecro-optical displays presently in use, with discussion of display evaluation characteristics and human factor topics. Coverage includes: liquid crystal (LC) display properties, matrix addressing, and photoaddressing issues; time-
Author: Jeffrey Papp, PhD, RT(R) (QM) Publisher: Elsevier Health Sciences ISBN: 032326199X Category : Medical Languages : en Pages : 390
Book Description
Say hello to the one resource that gives you access to both quality management and quality control information for all major imaging modalities. Updated with new legislative content, advances in imaging technology, and current ACR accreditation requirements, Papp’s Quality Management in the Imaging Sciences, 5th Edition features step-by-step QM procedures complete with full-size evaluation forms and instructions on how to evaluate equipment and document results. It is a great tool to help you for the ARRT Advanced Level Examination in Quality Management. "...the book does give a good overview of quality in imaging and to physicists performing controls it will be a valuable handbook." Reviewed by Jonn Terje Geitung on behalf of Journal of Acta Radiologica, April 2015 Special icon identifies federal standards throughout the text to alert you to government regulations important to quality management. Updated material reflects content changes in the ARRT Quality Management Examination and better prepares you to pass the ARRT Advanced Level Examination in Quality Management. Includes QM for all imaging sciences so you can access QM information for all imaging modalities with just one resource. Step-by-step QM procedures offer instructions on how to evaluate equipment, and full-sized sample evaluation forms offer practice in documenting results. Strong pedagogy aids in comprehension. A practice exam on Evolve includes 200 randomizable practice exam questions for the ARRT advanced certification examination in QM, and includes answers with rationales. Student experiments on Evolve let you complete lab assignments and print out answers on a computer, and save instructors time because they do not have to create their own lab assignments. Instructor resources on Evolve make the text easier than ever for instructors to use. NEW! Updated quality management tools and procedures offer current practice guidelines and information. NEW! Coverage of new technologies, like cassette-based and cassette-less digital systems and wireless DR systems, helps improve familiarity with technological advances in radiography. UPDATED! Renovated Digital Image Receptors and Advanced Imaging Equipment chapter presents material more efficiently and includes the most current technology and practices. EXPANDED! Digital artifacts content increases familiarity with technological advances and adherence to necessary accreditation standards. UPDATED! Renovated Mammographic Quality Standard chapter reflects changes in technology and provides an overview of the latest technological practices. NEW! Content on CT exposure and the Image Gently program emphasizes safe and necessary imaging practices. NEW! Legislative content on Centers for Medicare and Medicaid Services (CMS), ICD-10 Coding, Health Information Exchanges, the Affordable Care Act, and MIPPA provides updates for legislative and relevant industry practices and concerns. NEW! Updated ACR accreditation requirements in CT and MRI improve practice compliance and understanding of necessary ACR accreditation requirement changes.
Author: S. Susan Young Publisher: Artech House ISBN: 1596932880 Category : Computers Languages : en Pages : 323
Book Description
This book presents today's most powerful signal processing techniques together with methods for assessing imaging system performance when each of these techniques is applied. This multi-use book helps you make the most of sensor hardware through software enhancement, and evaluate system and algorithm performance. You also learn how to make the best hardware/software decisions in developing the next-generation of image acquisition and analysis systems.
Author: Kenneth Compton
Author: Kenneth Compton
Author: Gerard C. Jorna
Author: 
Author: 
Author: Jon C. Leachtenauer
Author: Robert W. Verona
Author: Mohammad A. Karim
Author: Jeffrey Papp, PhD, RT(R) (QM)
Author: David A. Ansley
Author: S. Susan Young