--%>
Assignment Help - homework help

Simulation of artifacts in CT using MATLAB

How is Simulation of artifacts in CT is done utilizing MATLAB?

E

Expert

Verified

Supposing that one of detectors (at l = l0) of a CT scanner is malfunction, which forever outputs a value of 0, i.e. g(l0, θ) = 0. The malfunctioned detector locates below the object however not in the center of the detector array as illustrated in the figure. The parallel ray geometry is supposed.

(1) If the projections are obtained with this CT scanner, display the sinogram for the object employed in Q1.

(2) Apply the inverse Radon transform to projections to re-construct the object. Display the re-constructed image.

(3) Discuss what types of artifacts are examined in the reconstructed image and what a technician must do to avoid such artifacts?

(4) In the inverse Radon transform (that is, ‘iradon’), use a distinct filter (that is, the default filter is Ram-Lak) and dispaly the reconstructed image. Discuss how and why the re-constructed image is enhanced.

859_matlab.jpg

   Related Questions in Programming Languages

  • Q : Class and Object and explain diverse

    Q. Define class and object with example and explain diverse specifies.  

    		•
  • Q : Explain Command-line argument

    Command-line argument: The arguments passed to a program whenever it is run. The Java program receives such in the single formal argument to its major method: public static void main(String[] args)

    		•
  • Q : What is Break statement Break statement

    Break statement: A statement employed to break out of a loop, switch statement or labeled block. In all situations, control continues with the statement instantly, subsequent to the containing block.

    		•
  • Q : What is Control structure Control

    Control structure: A statement which affects the flow of control in a method. The typical control structures are if statements and loops.

    		•
  • Q : Explain Singleton pattern Singleton

    Singleton pattern: It is a pattern which permits us to make sure that only a single instance of a specific class exists at any one time. Such an instance is termed as singleton. The pattern can as well be employed whenever instances would have no excl

    		•
  • Q : What is Avoid Redundancy Avoid

    Avoid Redundancy: While not every form of redundancy is as bad from a verification perspective as it is from a maintenance point of view, behavioral redundancy to re-create (local) state can impose problems because the model checker does not distingui

    		•
  • Q : Program to controls a quiz show in C++

    Foundations of Computer Science In this project, we will write a program that controls a quiz show, much like the many popular TV shows. The program will read in a group of questions and thei

    		•
  • Q : Macro definition in C and C++ Macro in

    Macro in C: Macros are defined as single identifier

    		•
  • Q : What is no-arg constructor no-arg

    no-arg constructor: It is a constructor which takes no arguments. By default, each and every class without an explicit constructor has a default no-arg constructor with the public access. Its role is entirely to invoke the no-arg constructor of the in

    		•
  • Q : What is Homogeneous collection

    Homogeneous collection: A group of objects with similar dynamic type. Arrays are the most general homogeneous collection objects.

    		•