--%>
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 : Block Started by Symbol What is the

    What is the Block Started by the Symbol?

    		•
  • Q : What is an Argument Argument : It is

    Argument: It is the information passed to a method. Arguments are as well sometimes termed as parameters. The method expecting to receive arguments should contain a formal argument declaration for each as portion of its method header. Whenever a metho

    		•
  • Q : Situations where AJAX must not be used

    Explain the situations in which the AJAX must not be used.

    		•
  • Q : What is Runtime stack Runtime stack :

    Runtime stack: It is a stack structure maintained by the Java Virtual Machine which records that methods are presently being executed. The most of late entered technique will be at the top of the stack and the main technique of an application will be

    		•
  • Q : What is Low level programming languages

    Low level programming languages: It is frequently termed as `assembly languages’; these give little more than the fundamental instruction set of a particular Central Processing Unit. Therefore programs written in low level programming languages

    		•
  • Q : ID of TC Trustcenter Publisher and

    For how long are ID of TC Trustcenter Publisher and certificates of developer valid?

    		•
  • Q : Define Bounds Bounds : It is the limits

    Bounds: It is the limits of an array or collection. In Java, the lower limit is for all time zero (0). In case of an array, the upper bound is one less than the length of the array, and is fixed. Indexing exterior the bounds of an array or collection

    		•
  • Q : Explain the steps to design product If

    If not in production, how far did you obey the design and why did not you notice it in production?

    		•
  • Q : Reducing state space of code What is

    What is the way to reduce the state space of the code during model checking?

    		•
  • Q : Explain Throws clause Throws clause :

    Throws clause: It is a clause in a method header pointing that one or additional exceptions will be propagated from this technique. For example:    public int find(String s) throws NotFoundExc

    		•