Question 1

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

-Gray-level mapping

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 2

A larger matrix results in a larger pixel size.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following converts an analog signal (voltage) into digital data (numbers)?

Accepted Answer

A)  An analog switch 
B)  An ADC 
C)  A digitizer 
D)  A digital to analog converter (DA
C)  
A)  An analog switch 
B)  An ADC 
C)  A digitizer 
D)  A digital to analog converter (DA
C)

Question 4

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 5

What is the purpose of the host computer in a digital image processing system?

Accepted Answer

The purpose of the host computer in a di

Question 6

The contraction for "picture element" is:

Accepted Answer

A)  pixel. 
B)  voxel. 
C)  matrix. 
D)  address. 
A)  pixel. 
B)  voxel. 
C)  matrix. 
D)  address.

Question 7

Which image processing hardware is responsible for high-speed processing of the input digital data?

Accepted Answer

A)  Digitizer 
B)  Image memory 
C)  Internal image processor 
D)  Host computer 
A)  Digitizer 
B)  Image memory 
C)  Internal image processor 
D)  Host computer

Question 8

Explain briefly what is meant by convolution.

Accepted Answer

Convolution is a digital image processin

Question 9

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

-Also called area processes or group processes

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

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 11

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

-This technique can result in the scaling and sizing of images

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 12

The sine wave is an example of an analog signal.

Accepted Answer

A) True 
 B)False

Question 13

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 14

A technique of filtering in the spatial domain rather than in the frequency domain is convolution.

Accepted Answer

A) True 
 B)False

Question 15

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 16

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 17

An 8-bit analog to digital converter (ADC) 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 18

Digital image processing was first developed for NASA's work in lunar and planetary exploration.

Accepted Answer

A) True 
 B)False

Question 19

A radiograph is an example of an analog image.

Accepted Answer

A) True 
 B)False

Question 20

The Fourier transform is used to transform one image domain into another image domain.

Accepted Answer

A) True 
 B)False

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

A larger matrix results in a larger pixel size.

Which of the following converts an analog signal (voltage) into digital data (numbers)?

The total number of gray levels is called:

What is the purpose of the host computer in a digital image processing system?

The contraction for "picture element" is:

Which image processing hardware is responsible for high-speed processing of the input digital data?

Explain briefly what is meant by convolution.

Please match the following digital image processing concepts for each group. Answer selections may be used more than once. -Also called area processes or group processes

The purpose of image enhancement is:

Please match the following digital image processing concepts for each group. Answer selections may be used more than once. -This technique can result in the scaling and sizing of images

The sine wave is an example of an analog signal.

Nonvisible physical images include all of the following except:

A technique of filtering in the spatial domain rather than in the frequency domain is convolution.

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

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

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

Digital image processing was first developed for NASA's work in lunar and planetary exploration.

A radiograph is an example of an analog image.

The Fourier transform is used to transform one image domain into another image domain.

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

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

A larger matrix results in a larger pixel size.

Which of the following converts an analog signal (voltage) into digital data (numbers)?

The total number of gray levels is called:

What is the purpose of the host computer in a digital image processing system?

The contraction for "picture element" is:

Which image processing hardware is responsible for high-speed processing of the input digital data?

Explain briefly what is meant by convolution.

Please match the following digital image processing concepts for each group. Answer selections may be used more than once. -Also called area processes or group processes

The purpose of image enhancement is:

Please match the following digital image processing concepts for each group. Answer selections may be used more than once. -This technique can result in the scaling and sizing of images

The sine wave is an example of an analog signal.

Nonvisible physical images include all of the following except:

A technique of filtering in the spatial domain rather than in the frequency domain is convolution.

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

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

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

Digital image processing was first developed for NASA's work in lunar and planetary exploration.

A radiograph is an example of an analog image.

The Fourier transform is used to transform one image domain into another image domain.

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