--%>
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 : What are Relational operators

    Relational operators: Operators, like <, >, <=, >=, == and!=, which produce a Boolean outcome, as portion of a Boolean expression.

    		•
  • Q : Explain the way of validation XHTML

    Explain the way of validation XHTML documents online.

    		•
  • Q : Explain Semantic error Semantic error:

    Semantic error: It is an error in the meaning of program. A statement might contain no syntax errors, however might still break the rules of Java language. For example, when ivar is an int variable, the shown statement is syntactically correct

  • Q : Explain Variable declaration Variable

    Variable declaration: It is the association of a variable with a specific type. It is significant to make a distinction among the declaration of variables of primitive types and such of class types. The variable of primitive type performs as a contain

    		•
  • Q : Define the term Critical section

    Critical section: It is a section of code in which there is potential for a race hazard. The critical sections made use of the synchronized statements or methods.

    		•
  • Q : What are the major issues related with

    What are the major issues related with multiprocessor caches and how might you resolve them?

    		•
  • Q : Importance of client-side libraries

    Explain the importance of the client-side libraries?

    		•
  • Q : Define the term Runtime error Define

    Define the term Runtime error: It is an error which causes a program to finish whenever it is being run.

    		•
  • Q : Explain Parallel programming Parallel

    Parallel programming: It is a style of programming in which statements are not essentially executed in an ordered series but in parallel. The parallel programming languages make it simpler to produce programs which are designed to be run on multi-proc

    		•
  • Q : Define the term Toggle Define the term

    Define the term Toggle: To alternate among two values, like true and false, on and off, or 1 & 0.

    		•