Question 1

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 onE) B) and C)
F) C) and D)

Question 2

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

Accepted Answer

A) True 
 B)False  False

Question 3

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 recognitionE) B) and C)
F) A) and B)

Question 4

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 operationsE) B) and D)
F) B) and C)

Question 5

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

Accepted Answer

A) True 
 B)False

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 operationsE) A) and B)
F) All of the above

Question 7

A 10* 10 matrix consists of ______ pixels.

Accepted Answer

A)   10
B)   20
C)   100
D)   120E) B) and C)
F) C) and D)

Question 8

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 9

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.E) A) and C)
F) A) and B)

Question 10

Contrast stretching is an example of a:

Accepted Answer

A)   local operation.
B)   global operation.
C)   geometric operation.
D)   point processing technique.E) A) and B)
F) B) and C)

Question 11

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 conversionE) A) and B)
F) A) and C)

Question 12

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)   RecoverableE) A) and B)
F) A) and C)

Question 13

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

Accepted Answer

A) True 
 B)False

Question 14

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 ADCE) A) and B)
F) A) and C)

Question 15

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 conversionE) A) and D)
F) None of the above

Question 16

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.E) B) and C)
F) A) and C)

Question 17

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 operationE) A) and D)
F) A) and B) B

Question 18

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.E) A) and D)
F) B) and C)

Question 19

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

Accepted Answer

A)   Sampling
B)   Analog-to-digital conversion
C)   Quantization
D)   ScanningE) None of the above
F) A) and B)

Question 20

The number of bits per pixel is the bit formation.

Accepted Answer

A) True 
 B)False

Exam 2: Digital Image Processing

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedFalse

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A 10* 10 matrix consists of ______ pixels.

Correct AnswerverifiedShow Answer

What are the components of a digital image processing system?

Correct AnswerverifiedA 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.

A histogram in digital image processing is:

Correct AnswerverifiedShow Answer

Contrast stretching is an example of a:

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedB

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The number of bits per pixel is the bit formation.

Correct AnswerverifiedShow Answer

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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.

Correct Answer
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B

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