Question 1

The systematic method of collecting data from the patient is called:

Accepted Answer

A) image processing 
B) data acquisition 
C) image display 
D) image communication 
A) image processing 
B) data acquisition 
C) image display 
D) image communication

Question 2

In which of the following are numerical representations of objects subjected to a series of operations to produce a desired result?

Accepted Answer

A) digital image processing 
B) pattern recognition 
C) analog-to-digital conversion 
D) digital-to-analog conversion 
A) digital image processing 
B) pattern recognition 
C) analog-to-digital conversion 
D) digital-to-analog conversion

Question 3

An increase of matrix size (with no change in field of view) will ____________ detail.

Accepted Answer

A) increase 
B) decrease 
C) not change 
D) have no effect on 
A) increase 
B) decrease 
C) not change 
D) have no effect on

Question 4

A 10* 10 matrix consists of ______ pixels.

Accepted Answer

A) 10 
B) 20 
C) 100 
D) 120 
A) 10 
B) 20 
C) 100 
D) 120

Question 5

Which of the following assigns integers to the brightness values measured by the photomultiplier tube?

Accepted Answer

A) scanning 
B) sampling 
C) quantization 
D) analog-to-digital conversion 
A) scanning 
B) sampling 
C) quantization 
D) analog-to-digital conversion

Question 6

Which type of image processing technique is intended to modify the spatial position of the pixels in an image?

Accepted Answer

A) point processing operation 
B) geometric processing operation 
C) local processing operation 
D) global processing operation 
A) point processing operation 
B) geometric processing operation 
C) local processing operation 
D) global processing operation

Question 7

All images displayed for viewing by humans are in the spatial frequency domain.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following reduces the amount of data that makes up the image?

Accepted Answer

A) image enhancement 
B) image restoration 
C) image analysis 
D) image compression 
A) image enhancement 
B) image restoration 
C) image analysis 
D) image compression

Question 9

The purpose of image enhancement is:

Accepted Answer

A) to generate an image more pleasing to the observer 
B) to improve the quality of images that have distortions 
C) to allow measurements and statistics to be performed 
D) to reduce the size of the image 
A) to generate an image more pleasing to the observer 
B) to improve the quality of images that have distortions 
C) to allow measurements and statistics to be performed 
D) to reduce the size of the image

Question 10

Digital image processing can be defined as "subjecting numerical representations of objects to a series of operations to obtain a desired result."

Accepted Answer

A) True 
 B)False

Question 11

The total number of gray levels is called:

Accepted Answer

A) a matrix 
B) the gray scale 
C) an electronic signal 
D) bit depth 
A) a matrix 
B) the gray scale 
C) an electronic signal 
D) bit depth

Question 12

Which of the following is the final step in digitizing an image?

Accepted Answer

A) sampling 
B) analog-to-digital conversion 
C) quantization 
D) scanning 
A) sampling 
B) analog-to-digital conversion 
C) quantization 
D) scanning

Question 13

Gray-level mapping is an example of a:

Accepted Answer

A) local operation 
B) global operation 
C) geometric operation 
D) point processing technique 
A) local operation 
B) global operation 
C) geometric operation 
D) point processing technique

Question 14

Which type(s) of image compression results in no loss of information in the compressed image data? I. lossless
II. lossy
III. reversible
IV. irreversible

Accepted Answer

A) I and II 
B) III and IV 
C) I and III 
D) II and IV 
A) I and II 
B) III and IV 
C) I and III 
D) II and IV

Question 15

An 8-bit analog-to-digital converter will divide a signal into:

Accepted Answer

A) 8 parts 
B) 8 parts. 
C) 64 parts 
D) 256 parts 
A) 8 parts 
B) 8 parts. 
C) 64 parts 
D) 256 parts

Question 16

Nonvisible physical images include all of the following except:

Accepted Answer

A) temperature 
B) pressure 
C) elevation maps 
D) holograms 
A) temperature 
B) pressure 
C) elevation maps 
D) holograms

Question 17

The sine wave is an example of an analog signal.

Accepted Answer

A) True 
 B)False

Question 18

Please match the following digital image processing concepts for each group. All answer selections will be used just once.
-Most frequently used image processing technique

Accepted Answer

A) global operations 
B) point operations 
C) local operations 
D) geometrical operations 
A) global operations 
B) point operations 
C) local operations 
D) geometrical operations

Question 19

A histogram in digital image processing is:

Accepted Answer

A) a plot of the number of pixels as a function of the number of gray levels 
B) a local operation 
C) a spatial frequency filter 
D) a windowing level 
A) a plot of the number of pixels as a function of the number of gray levels 
B) a local operation 
C) a spatial frequency filter 
D) a windowing level

Question 20

The process of dividing a picture into small regions called pixels is referred to as:

Accepted Answer

A) sampling 
B) quantization 
C) analog-to-digital conversion 
D) scanning 
A) sampling 
B) quantization 
C) analog-to-digital conversion 
D) scanning

The systematic method of collecting data from the patient is called:

In which of the following are numerical representations of objects subjected to a series of operations to produce a desired result?

An increase of matrix size (with no change in field of view) will ____________ detail.

A 10* 10 matrix consists of ______ pixels.

Which of the following assigns integers to the brightness values measured by the photomultiplier tube?

Which type of image processing technique is intended to modify the spatial position of the pixels in an image?

All images displayed for viewing by humans are in the spatial frequency domain.

Which of the following reduces the amount of data that makes up the image?

The purpose of image enhancement is:

Digital image processing can be defined as "subjecting numerical representations of objects to a series of operations to obtain a desired result."

The total number of gray levels is called:

Which of the following is the final step in digitizing an image?

Gray-level mapping is an example of a:

Which type(s) of image compression results in no loss of information in the compressed image data? I. lossless II. lossy III. reversible IV. irreversible

An 8-bit analog-to-digital converter will divide a signal into:

Nonvisible physical images include all of the following except:

The sine wave is an example of an analog signal.

Please match the following digital image processing concepts for each group. All answer selections will be used just once. -Most frequently used image processing technique

A histogram in digital image processing is:

The process of dividing a picture into small regions called pixels is referred to as:

Computed Tomography: An Overview

Introduction to Computers

Physical Principles of Computed Tomography

Data Acquisition Concepts

Image Reconstruction

Basic Instrumentation

Image Postprocessing and Visualization Tools

Image Quality

Radiation Dose in Computed Tomography

Single-Slice Spiralhelical Computed Tomography: Physical Principles and Instrumentation

Multislice Spiralhelical Computed Tomography: Physical Principles and Instrumentation

Other Technical Applications of Computed Tomography Imaging: Basic Principles

Three-Dimensional Computed Tomography: Basic Concepts

Virtual Reality Imaging

Positron Emission Tomographycomputed Tomography Scanners

Computed Tomography of the Head, Cerebral Vessels, Neck, and Spine

Computed Tomography of the Body

Pediatric Computed Tomography

Quality Control for Computed Tomography Scanners

Filters

Exam 3: Digital Image Processing

The systematic method of collecting data from the patient is called:

In which of the following are numerical representations of objects subjected to a series of operations to produce a desired result?

An increase of matrix size (with no change in field of view) will ____________ detail.

A 10* 10 matrix consists of ______ pixels.

Which of the following assigns integers to the brightness values measured by the photomultiplier tube?

Which type of image processing technique is intended to modify the spatial position of the pixels in an image?

All images displayed for viewing by humans are in the spatial frequency domain.

Which of the following reduces the amount of data that makes up the image?

The purpose of image enhancement is:

Digital image processing can be defined as "subjecting numerical representations of objects to a series of operations to obtain a desired result."

The total number of gray levels is called:

Which of the following is the final step in digitizing an image?

Gray-level mapping is an example of a:

Which type(s) of image compression results in no loss of information in the compressed image data? I. lossless II. lossy III. reversible IV. irreversible

An 8-bit analog-to-digital converter will divide a signal into:

Nonvisible physical images include all of the following except:

The sine wave is an example of an analog signal.

Please match the following digital image processing concepts for each group. All answer selections will be used just once. -Most frequently used image processing technique

A histogram in digital image processing is:

The process of dividing a picture into small regions called pixels is referred to as:

Computed Tomography: An Overview

Introduction to Computers

Physical Principles of Computed Tomography

Data Acquisition Concepts

Image Reconstruction

Basic Instrumentation

Image Postprocessing and Visualization Tools

Image Quality

Radiation Dose in Computed Tomography

Single-Slice Spiralhelical Computed Tomography: Physical Principles and Instrumentation

Multislice Spiralhelical Computed Tomography: Physical Principles and Instrumentation

Other Technical Applications of Computed Tomography Imaging: Basic Principles

Three-Dimensional Computed Tomography: Basic Concepts

Virtual Reality Imaging

Positron Emission Tomographycomputed Tomography Scanners

Computed Tomography of the Head, Cerebral Vessels, Neck, and Spine

Computed Tomography of the Body

Pediatric Computed Tomography

Quality Control for Computed Tomography Scanners

Filters