Download or read book Comparison of Single Pinhole and Coded Aperture Imaging Systems and Study of Signal to Noise Ratio in Coded Aperture Imaging written by Dhinesh Babu Jayakumar and published by . This book was released on 2005 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ERDA Energy Research Abstracts written by and published by . This book was released on 1977 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1977 with total page 958 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration. Technical Information Center and published by . This book was released on 1977 with total page 1680 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Class of Near perfect Coded Apertures written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Coded aperture imaging of gamma ray sources has long promised an improvement in the sensitivity of various detector systems. The promise has remained largely unfulfilled, however, for either one of two reasons. First, the encoding/decoding method produces artifacts, which even in the absence of quantum noise, restrict the quality of the reconstructed image. This is true of most correlation-type methods. Second, if the decoding procedure is of the deconvolution variety, small terms in the transfer function of the aperture can lead to excessive noise in the reconstructed image. It is proposed to circumvent both of these problems by use of a uniformly redundant array (URA) as the coded aperture in conjunction with a special correlation decoding method. It is shown that the reconstructed image in the URA system contains virtually uniform noise regardless of the structure in the original source. Therefore, the improvement over a single pinhole camera will be relatively larger for the brighter points in the source than for the low intensity points. In the case of a large detector background noise the URA will always do much better than the single pinhole regardless of the structure of the object. In the case of a low detector background noise, the improvement of the URA over the single pinhole will have a lower limit of approximately (1/2f)/sup 1/2 / where f is the fraction of the field of view which is uniformly filled by the object.
Download or read book Imaging Detectors In High Energy Astroparticle And Medical Physics Proceedings Of The Ucla International Conference written by Jun Park and published by World Scientific. This book was released on 1996-10-04 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume addresses four major topical areas: imaging detectors for astrophysics application, noble liquid compound, medical application and high energy application.Noble liquid and scintillating fiber technology, which opened a new era in high spatial (energy) resolution, high speed detection of charged particles and gamma rays, is developing further and its application seems to be concentrated in three major directions: astrophysics, high energy physics and medical imaging. In addition, the book covers new developments in imaging photon detectors, hybrid type (fiber and noble liquid) detectors for WIMP search and several promising techniques for new imaging detectors.
Download or read book 1995 IEEE Nuclear Science Symposium and Medical Imaging Conference Record written by Patricia A. Moonier and published by . This book was released on 1996 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tomographic Methods in Nuclear Medicine written by Bhagwat D. Ahluwalia and published by CRC Press. This book was released on 2020-10-25 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication is a compendium of physical principles, system descriptions, instrument quality assurance, and clinical applications of extant tomographic methods in nuclear medicine. Written by an expert in this pertinent field, each chapter deals with the topics in a comprehensive fashion to provide a ready reference of all the work done on the subject and an estimate of the future utilization. Descriptions of methods available to nuclear medicine for tomographic viewing include positron emission, single photon emission, and planar tomography. This is an excellent resource volume of general applicability for nuclear medicine physicians, nuclear medicine scientists, and researchers in organ imaging and processing techniques.
Download or read book Medical Imaging Systems written by Albert Macovski and published by Prentice Hall. This book was released on 1983 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1980 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Photoelectronic Detectors Cameras and Systems written by C. B. Johnson and published by SPIE-International Society for Optical Engineering. This book was released on 1995 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1980-11 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conference Record written by and published by . This book was released on 2003 with total page 872 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the International Meeting on Fast Reactor Safety Technology Seattle Washington August 1923 1979 written by and published by . This book was released on 1979 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physics and Engineering of Medical Imaging written by R. Guzzardi and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 1004 pages. Available in PDF, EPUB and Kindle. Book excerpt: The NATO Advanced Study Institute (ASI) on Physics and Engineering of Medical Imaging has addressed a subject which in the wide area of biomedical technology is one of those which are showing greater impact in the practice of medicine for the ability to picture both Anatomy and Physiology. The information and accuracy obtained by whatever imaging methodology is a complex result of a multidisciplinary effort of several sciences such as Physics, Engineering, Electronics, Chemistry, Medicine, etc ... Development has occurred through work performed in different environments such as basic and applied research laboratories, industries and clinical centers, with the aim of achieving an efficient transfer of know-how and technology for the improvement of both investigation possibilities and health care. On one hand, such an effort requires an ever-increasing committment of human and financial resources at research and industrial level, and, on the other, it meets serious difficulties in recruiting the necessary human expertise oriented to this technology which breaks with the tradi tiona I academic borders of the single disciplines. Furthermore, the scientific community is continually dealing with the problem of increasing the performance and, at the same time, complexity and costs of instruments, applying more and more sophisticated technology in an effort to meet the demand for more complete and accurate clinical information. The scientific program of this ASI and the qualification of the authors reveals the intrinsic complexity of the development process of the Imaging methodologies.
Download or read book Application of Accelerators in Research and Industry written by and published by . This book was released on 1996 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fusion Energy Update written by and published by . This book was released on 1980 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
