SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
Digital Image Processing
Start Test
Study First
Subject
:
engineering
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Which computers handle data composed of definite quantities of current?
digital computers
greater
software
analog-to-digital converters
2. What is an image that has been converted into numerical values for transmission or processing?
DICOM standard
peripherals
digital image
software
3. There is a ___ relationship between subject contrast and acquired data contrast.
voxel
direct
Fourier Transformation
little
4. What is the digital standard for imaging that is designed to ensure that all equipment fro all manufacturers who choose to adhere to the standard are speaking the same computer language?
direct
DICOM standard
digital computers
scanning or array detection
5. Extremely narrow window width requires the computer to ignore a ___ ____ of data outside the chosen range.
1960s
bit
2^x
large amount
6. Binary systems operate with a ___-symbol language.
two
frequency - contrast - and noise
central processing unit
1000+
7. What is the random background information that does not contribute to the image quality?
electronic sources
noise
32
magnetic tape
8. Computer programs are called what?
voxel
high-pass filtering
software
numerical values
9. What is the equation for determining gray scale bit depth?
array detection
2^x
bandwidth
RAM
10. A high contrast image has a ___ frequency.
edge enhancement filtering or sharpening
filtering
1940s
high
11. When power is turned off - (ROM / RAM) is erased and (ROM / RAM) is maintained
RAM - ROM
2^x
IRs
analog-to-digital converters
12. What is critical to how fast the computer system can function?
smaller
slow scanning
shades of gray
bus speed
13. What changes the pixel value by multiplication or division and controls image contrast?
peripherals
window width
array detection
byte
14. What is the equation for determining gray scale bit depth?
programs and data
2^x
off
signal-to-noise ratio
15. What does a 1 in binary code stand for?
high-pass filtering
high-pass filtering
data
on
16. What are the 3 classifications of digitized image filters?
fine
byte
low-pass - band-pass - and high-pass
computer - radiographer
17. The ____ is the heart of the computer while the ___ is the vessels.
pixel
direct
CPU - Bus
fine
18. What is the name for an 8-bit word?
high-pass filtering
health level 7
digital imaging and communication in medicine
byte
19. What type of scanning increases resolution slightly by scanning all 525 lines in order?
smaller
hardware
matrix size
progressive scanning
20. What input device do radiographers use on a normal basis?
scanning or array detection
slow scanning
1000+
IRs
21. What is a specialized computer that functions as a peripheral and uses CPU memory to perform mathematical operations at extremely high speed?
digital computers
Input devices
Fourier Transformation
array processors
22. Scanners - mouse - keyboard - input memory disk drive - and paper printers are all forms of what?
peripherals
data
CT and MRI
TV camera
23. What is accomplished by transforming the image into frequencies and making mathematical alteration to reproduce the image?
low-pass - band-pass - and high-pass
filtering
health level 7
bit
24. What determines resolution?
pixel size
bus
voltage
health level 7
25. What is the primary limitation with the resolution on digital images?
shades of gray
high-pass filtering
raster scan pattern
byte
26. What is a square series of boxes that gives form to the image?
electronic sources
health level 7
matrix
1-2 lp/mm
27. Which type of information consists of operating instructions?
low-pass - band-pass - and high-pass
program
number of values displayed per image side
CPU - Bus
28. Modalities differ in bit depth that is available depending on the capabilities of what?
magnetic tape
IR
1945
program
29. What is an individual matrix box or picture element?
digital imaging and communication in medicine
mathematical theory - solid-state electronics - and microchip technology
pixel
gray scale bit depth
30. Which computers handle data composed of continuously varying electrical currents?
electronic sources
shades of gray
direct
analog computers
31. What is the process used in low-pass filtering that is accomplished by averaging adjacent pixels values?
noise
high
read memory
smoothing
32. What is the 'noisiest' component of a digital system?
CT and MRI
frequency
TV camera
IR
33. Which memory can only be extracted without alteration; cannot change?
read memory
on
digital image
Input devices
34. Which type of filter amplifies or deletes all but low frequencies - appears to reduce contrast - and is often used to remove high frequency nose.
mathematical theory - solid-state electronics - and microchip technology
scanning or array detection
low-pass filter
slow scanning
35. Electrical connections between the CPU and the other components rung along a system of series or parallel conductors called what?
bus
voxel
bandwidth
scanning or array detection
36. In medical imaging - each pixel value corresponds to a 3-D volume of tissue known as what?
central processing unit
voltage
software
voxel
37. It is important that the radiographer understand anatomy from different perspectives due to the methods of digital processing and image information? What are the 3 perspectives?
RAM
magnetic tape
transverse - sagittal - and coronal
mathematical theory - solid-state electronics - and microchip technology
38. What is the measure of the differences between the data values referred to as?
low-pass - band-pass - and high-pass
contrast
decrease
peripherals
39. What does a 0 in binary code stand for?
off
software
1970s-1990s
fine
40. What is the digital standard for imaging that is designed to ensure that all equipment fro all manufacturers who choose to adhere to the standard are speaking the same computer language?
window level
contrast
digital image
DICOM standard
41. What are devices such as keyboard - touch screen monitors - and voice-activation that you put into or connect to a computer?
Input devices
program
computer - radiographer
bandwidth
42. Commercial units scan only 262.5 lines out of 525 in each pass thus producing ____ for diagnostic imaging.
electronic sources
1-2 lp/mm
progressive scanning
health level 7
43. What type of memory storage devices are required for large amounts of data?
slow scanning
central processing unit
computer - radiographer
CD or DVD
44. What is the 'read-only' memory that contains basic operating instructions that are almost never changing?
ROM
CT and MRI
0 - 1
decreased
45. The computer either ____ or ____ selected frequencies during the filtering process.
little
low-pass - band-pass - and high-pass
accentuates or suppresses
smoothing
46. All medical imaging is achieved with which type of computers?
byte
digital computers
10 megabyte
data
47. Digitalization of analog information (increases / reduces) the quality and quantity of information?
RAM
reduces
band-pass filtering
noise
48. Because the range of stored densities is so much wider than the visual range - any digital image is only a small part of the total data obtained - each image is a _____ on the total range of data.
pixel
digital imaging and communication in medicine
write memory
window
49. In what time period did microchip technology come out?
digital image
1-2 lp/mm
1960s
health level 7
50. If window width increases - image contrast will ____.
CPU - Bus
low
decrease
window
Sorry!:) No result found.
Can you answer 50 questions in 15 minutes?
Let me suggest you:
Browse all subjects
Browse all tests
Most popular tests
Major Subjects
Tests & Exams
AP
CLEP
DSST
GRE
SAT
GMAT
Certifications
CISSP go to https://www.isc2.org/
PMP
ITIL
RHCE
MCTS
More...
IT Skills
Android Programming
Data Modeling
Objective C Programming
Basic Python Programming
Adobe Illustrator
More...
Business Skills
Advertising Techniques
Business Accounting Basics
Business Strategy
Human Resource Management
Marketing Basics
More...
Soft Skills
Body Language
People Skills
Public Speaking
Persuasion
Job Hunting And Resumes
More...
Vocabulary
GRE Vocab
SAT Vocab
TOEFL Essential Vocab
Basic English Words For All
Global Words You Should Know
Business English
More...
Languages
AP German Vocab
AP Latin Vocab
SAT Subject Test: French
Italian Survival
Norwegian Survival
More...
Engineering
Audio Engineering
Computer Science Engineering
Aerospace Engineering
Chemical Engineering
Structural Engineering
More...
Health Sciences
Basic Nursing Skills
Health Science Language Fundamentals
Veterinary Technology Medical Language
Cardiology
Clinical Surgery
More...
English
Grammar Fundamentals
Literary And Rhetorical Vocab
Elements Of Style Vocab
Introduction To English Major
Complete Advanced Sentences
Literature
Homonyms
More...
Math
Algebra Formulas
Basic Arithmetic: Measurements
Metric Conversions
Geometric Properties
Important Math Facts
Number Sense Vocab
Business Math
More...
Other Major Subjects
Science
Economics
History
Law
Performing-arts
Cooking
Logic & Reasoning
Trivia
Browse all subjects
Browse all tests
Most popular tests