Image Acquisition and Processing Hardware

Slides:

Advertisements

Similar presentations

Introduction to Computers Chapter 2 §Computers are common in every facet of human activity. §They overcome the shortcomings of conventional radiography.

Advertisements

Computers NOW SEE MY PRESENTATION My name is KRYSTIAN ZAJDEL. I have lots of different hobbies but my favourite are computers and information technology.

Multimedia Components (Develop & Delivery System)

The Field of Digital Radiography

INTRODUCTION OF COMPUTER

Medical Imaging System Ku-Yaw Chang Assistant Professor, Department of Computer Science and Information Engineering Da-Yeh University.

MRI “Magnetic Resonance Imaging”. Nuclei with nuclear spin: elementary magnets Magnetic moment:  =magnetogyric ratio L=angular momentum.

Historical Perspective

Introduction to Medical Imaging

Computer Main Parts.

Digital Radiography Chapter 22. History of Digital Radiography Slower process of conversion because no pressing need to convert to digital radiography.

Engr. Hinesh Kumar Lecturer, I.B.T, LUMHS. Signal Signal Classification Signal Processing Concept of Systems DSP Elements of DSP Advantages of DSP Limitations.

Introduction of Medical Imaging Chun Yuan. Organization of the Course 8 Lectures (1.5 hours per lecture) – Introduction of medical imaging and MRI – Basic.

Introduction To Digital Radiography And PACS

Medical Image Analysis Introduction Figures come from the textbook: Medical Image Analysis, by Atam P. Dhawan, IEEE Press, 2003.

Medical Image Analysis Introduction Figures come from the textbook: Medical Image Analysis, Second Edition, by Atam P. Dhawan, IEEE Press, 2011.

Brain tumor analysis By: Ninad Mehendale.

Computer System Alanoud Al Saleh. Computer systems Are defined as: A machine for solving problems. Specifically the modern computer is high-speed electronic.

Dr. Engr. Sami ur Rahman Assistant Professor Department of Computer Science University of Malakand Visualization in Medicine Course Introduction.

CT “Computer tomography”. Contrast mechanisms in X-ray imaging: X-ray absorption X-ray absorption mechanisms: 1. Photoelectric effect 2. Compton scatter.

Dr. Yaseen Hayajneh Radiology Services Yaseen Hayajneh RN, MPH, PhD.

Computers in Imaging Q & A Robert Metzger, Ph.D..

Module B Computed Tomography Physics, Instrumentation, and Imaging.

Data Acquisition Systems

 In electrical engineering and computer science image processing is any form of signal processing for which the input is an image, such as a photograph.

Medical Imaging: the Glass Patient Prof.dr.ir. Bart M. ter Haar Romeny Technische Universiteit Eindhoven Dept. of Biomedical Engineering.

BMME 560 & BME 590I Medical Imaging: X-ray, CT, and Nuclear Methods Tomography Part 1.

Introduction to Medical Imaging Imagining Modalities.

Seeram Chapter #3: Digital Imaging

Digital Imaging Systems. Medical Imaging Systems Projection Radiography Computed Tomography Nuclear Medicine Ultrasound Imaging Magnetic Resonance Imaging.

Factors affecting CT image RAD

1 Computer Graphics Week2 –Creating a Picture. Steps for creating a picture Creating a model Perform necessary transformation Lighting and rendering the.

Digital Image Processing & Analysis Fall Outline Sampling and Quantization Image Transforms Discrete Cosine Transforms Image Operations Image Restoration.

Neuroradiology 1.MRI (diffusion) early ischemic stroke 2.CT for trauma and CVA/stroke to exclude hemorrhage 3.MRA or DSA for Aneurysm (SAH)

© Jimoid.com 2005 Imaging Basics A medical image is a 2D or 3D distribution of signals which represent properties of an object. The purpose of medical.

Computer Architecture

OVERVIEW OF HUMAN ANAOMY & PHYSIOLOGY Chapter 1. OVERVIEW Anatomy is the study of structure Physiology is the study of function Form follows function.

1 INTRODUCTION TO THE PHYSICS OF DIAGNOSTIC IMAGING Outline of Course Brief History Common Terminology Imaging Modalities.

DIGITAL IMAGE PROCESING NASA LUNAR AND PLANETARY EXPLORATION.

IV. Medical tools A. Autopsy 1. Used to establish cause of death or to verify death. 2. Can be used to detect hidden disease, educate, or determine criminal.

PRINCIPLES AND APPROACHES 3D Medical Imaging. Introduction (I) – Purpose and Sources of Medical Imaging Purpose  Given a set of multidimensional images,

Digital imaging By : Alanoud Al Saleh. History: It started in 1960 by the National Aeronautics and Space Administration (NASA). The technology of digital.

Computer History Earliest computer was the abacus abacus invented around 3,000 B.C. other calculating machines developed in 1600’s digital computer started.

Introduction to Modern Medical Imaging

Digital imaging By : Alanoud Al Saleh. History: It started in 1960 by the National Aeronautics and Space Administration (NASA). The technology of digital.

Image Display. But first a review Remember the 3 main steps 1. Data Acquisition 2. Image Reconstruction 3. Image Display.

1 As Clinical Anatomy RADIOLOGY. COURSE GOALS  Understand basics of image generation.  Relate imaging to gross anatomy.  See clinical relationship.

Advanced Biomedical Imaging Dr. Azza Helal A. Prof. of Medical Physics Faculty of Medicine Alexandria University.

Review 1 Chapters Chapter 1 Understanding Computers, 12th Edition 2 Chapter 1 Explain why it is essential to learn about computers today and discuss.

INPUT, Output & storage devices

Computer Parts And Components PERIPHERALS. Definition of Peripherals External hardware devices attached to the computer are called peripheral devices.

Medical Imaging How can we peer into body without cutting it open?

Biomarkers from Dynamic Images – Approaches and Challenges

SPS Lab 14 th. 진성민. Contents  Scan Converter Memory  Digital Device  Analog-to-digital converter  Scan converter matrix  Writing, Reading, and image.

ECE 101 Exploring Electrical Engineering Chapter 7 Data Acquisition Herbert G. Mayer, PSU Status 11/30/2015 Derived with permission from PSU Prof. Phillip.

Medicine, Nursing and Health Sciences Overview of Radiography and Medical Imaging Course Associate Professor Peter Wells, PhD Adjunct Professor Department.

History of digital radiology 1980 Kinos L.T. ET all developed a portable radiographic X-ray camera made of tantalum and aluminum. Digital radiography.

Computed tomography. Formation of a CT image Data acquisitionImage reconstruction Image display, manipulation Storage, communication And recording.

PACS as Medical Devices

CT Scan vs MRI.

Introduction to medical imaging

Chapter 20 Lesson 1 Radiology and Nuclear Medicine

Multimedia Database.

Chapter 1 Organization of The Human Body

Introduction to Radiology

Absolute Quantification of Myocardial Blood Flow

Medical Imaging Imagining Modalities.

Pima Medical Institute Online Education

Pima Medical Institute Online Education

The Radiology Information System (RIS)

Presentation transcript:

Image Acquisition and Processing Hardware By : Alanoud Al Saleh

The major components are: Analog-to-digital converter Image storage Image display Image processor Host computer Digital-to analog converter

Digitizer : The analog signal is converted into digital form by the digitizer or analog-to-digital converter (ADC).

Image memory: The digitized image is held in storage for further processing. Several components are connected to the image store and provide input and output. The size of the memory depends on the image. For example, a 512x512x8 bit image requires a memory of 2,097,152 bits.

Digital-to-analog converter (DAC): The digital image held in the memory can be displayed on a television monitor. However, because monitors work with analog signals, it is necessary to convert the digital data to analog signals with DAC

Internal image processor: It is responsible for high-speed processing of the input digital data.

Host computer: In digital image processing, the host computer is a primary component capable of performing several functions. For example: The host computer can read and write the data in the image, store and provide it for archival storage on tape or disk storage systems.

Host computer: The host computer plays a significant role in applications that involve the transmission of images to another location, such as medical imaging.

Digital image processing: A number of imaging modalities in radiology use image processing techniques, including digital radiography and fluoroscopy, nuclear medicine, magnetic resonance imaging, ultrasound and computed tomography.

Digital image processing: The future of digital imaging is promising in that a wide variety of applications have received increasing attention such as 3D imaging.

Essential image-processing operations used in digital imaging technologies The major image processing operations in medical imaging that are now common in the radiology department are:

1. Digital subtraction angiography (DSA): Processing operation: Subtraction of images out of a sequence, analytic processing. Objectives: Immediate display of subtraction images, evaluation of perfusion and/or blood flow, removal of artefacts arising from patient movement, extraction of physiologic data, contrast enhancement.

Before and After Subtraction DSA

2. Computed tomography (CT): Processing operation: Level of window adjustment, image comparison, magnification, region of interest processing, reconstruction of perpendicular slices. Objective: Display of very large contrast range, display adaptation to human observer, image reformation

CT Images

Magnetic resonance imaging (MRI): Processing operation: Level and window adjustment, image comparesion, magnification, image synthesis Objective: Adaptation to display to human observer, creation of new images showing tendency on T1, T2, local density and flow

MRI Brain Images

Brain Images (MRI&MRS)

Ultrasound imaging: Processing operation: Processing of image sequences, filtration. Objective: Display quality, extraction of physiologic data

Ultrasound Kidney Images Doppler

Digital radiography: Processing operation: Modification of display parameters using contrast reproduction curve, spatial filtration, selection of a sequence of basic images. Objective: Display optimization harmonization of image, extraction of quantitative or semi quantitative information.

Digital images

Nuclear imaging: Processing operation: Processing of image sequences, slice reconstruction, filtration, quantitative processing. Objective: Display quality, tomography, extraction of physiologic data.

Gamma Camera Image

PET Filtered Image

Thank you