Question 1

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 B

Question 2

What are the components of a digital image processing system?

Accepted Answer

A basic digital image processing system consists of several interconnected components. The major components are the ADC, image storage, image display, image processor, host computer, and DAC.

Question 3

Computers operate using the binary number system which operates with a base of 10.

Accepted Answer

A) True 
 B)False  False

Question 4

In which of the following is the quality improved of a digital image that has distortions or degradations?

Accepted Answer

A)  Image enhancement 
B)  Image analysis 
C)  Image restoration 
D)  Pattern recognition 
A)  Image enhancement 
B)  Image analysis 
C)  Image restoration 
D)  Pattern recognition

Question 5

Which ADC is more accurate with respect to sampling an analog signal?

Accepted Answer

A)  2-bit ADC 
B)  4-bit ADC 
C)  8-bit ADC 
D)  16-bit ADC 
A)  2-bit ADC 
B)  4-bit ADC 
C)  8-bit ADC 
D)  16-bit ADC

Question 6

Please match the following digital image processing concepts for each group. Answer selections may be used more than 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 7

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 8

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 9

Please match the following digital image processing concepts for each group. Answer selections may be used more than once.

-Spatial frequency filtering is an example of this operation

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 10

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 11

An example of a local operation that causes image brightness to change slowly or at a constant rate is called:

Accepted Answer

A)  area processes. 
B)  low spatial frequency. 
C)  convolution. 
D)  high spatial frequency. 
A)  area processes. 
B)  low spatial frequency. 
C)  convolution. 
D)  high spatial frequency.

Question 12

Contrast stretching 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 13

Digitization consists of four steps: scanning, sampling, quantization, and digital to analog conversion.

Accepted Answer

A) True 
 B)False

Question 14

The number of bits per pixel is the bit formation.

Accepted Answer

A) True 
 B)False

Question 15

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 16

An increase of matrix size (with no change in field of view (FOV)) 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 17

In which of the following is the brightness level of each pixel in a picture measured by a photomultiplier tube (PM)?

Accepted Answer

A)  Scanning 
B)  Sampling 
C)  Quantization 
D)  Digital to analog conversion 
A)  Scanning 
B)  Sampling 
C)  Quantization 
D)  Digital to analog conversion

Question 18

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

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 19

The output digital image must first be converted into an analog signal.

Accepted Answer

A) True 
 B)False

Question 20

Which type of image compression results in no loss of information in the compressed image data?

Accepted Answer

A)  Lossless 
B)  Lossy 
C)  Irreversible 
D)  Recoverable 
A)  Lossless 
B)  Lossy 
C)  Irreversible 
D)  Recoverable

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

What are the components of a digital image processing system?

Computers operate using the binary number system which operates with a base of 10.

In which of the following is the quality improved of a digital image that has distortions or degradations?

Which ADC is more accurate with respect to sampling an analog signal?

Please match the following digital image processing concepts for each group. Answer selections may be used more than once. -Most frequently used image processing technique

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

A 10* 10 matrix consists of ______ pixels.

Please match the following digital image processing concepts for each group. Answer selections may be used more than once. -Spatial frequency filtering is an example of this operation

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

An example of a local operation that causes image brightness to change slowly or at a constant rate is called:

Contrast stretching is an example of a:

Digitization consists of four steps: scanning, sampling, quantization, and digital to analog conversion.

The number of bits per pixel is the bit formation.

A histogram in digital image processing is:

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

In which of the following is the brightness level of each pixel in a picture measured by a photomultiplier tube (PM)?

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

The output digital image must first be converted into an analog signal.

Which type of image compression results in no loss of information in the compressed image data?

Computed Tomography: an Overview

Physical Principles of Computed Tomography

Data Acquisition Concepts

Image Reconstruction

Iterative Reconstruction Basics

Basic Instrumentation

Image Postprocessing and Visualization Tools

Image Quality

Radiation Dose in Computed Tomography

Multislice Computed Tomography: Physical Principles and Instrumentation

Other Technical Applications of Computed Tomography Imaging: Basic Principles

Three-Dimensional Computed Tomography: Basic Concepts

Positron Emission Tomographyct Petct and Single-Photon Emission Computed Tomographyct Spectct Hybrid 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 2: Digital Image Processing

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

What are the components of a digital image processing system?

Computers operate using the binary number system which operates with a base of 10.

In which of the following is the quality improved of a digital image that has distortions or degradations?

Which ADC is more accurate with respect to sampling an analog signal?

Please match the following digital image processing concepts for each group. Answer selections may be used more than once. -Most frequently used image processing technique

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

A 10* 10 matrix consists of ______ pixels.

Please match the following digital image processing concepts for each group. Answer selections may be used more than once. -Spatial frequency filtering is an example of this operation

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

An example of a local operation that causes image brightness to change slowly or at a constant rate is called:

Contrast stretching is an example of a:

Digitization consists of four steps: scanning, sampling, quantization, and digital to analog conversion.

The number of bits per pixel is the bit formation.

A histogram in digital image processing is:

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

In which of the following is the brightness level of each pixel in a picture measured by a photomultiplier tube (PM)?

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

The output digital image must first be converted into an analog signal.

Which type of image compression results in no loss of information in the compressed image data?

Computed Tomography: an Overview

Physical Principles of Computed Tomography

Data Acquisition Concepts

Image Reconstruction

Iterative Reconstruction Basics

Basic Instrumentation

Image Postprocessing and Visualization Tools

Image Quality

Radiation Dose in Computed Tomography

Multislice Computed Tomography: Physical Principles and Instrumentation

Other Technical Applications of Computed Tomography Imaging: Basic Principles

Three-Dimensional Computed Tomography: Basic Concepts

Positron Emission Tomographyct Petct and Single-Photon Emission Computed Tomographyct Spectct Hybrid 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