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. Increased noise = _____ image contrast.
decreased
ENIAC
32
increase
2. A high contrast image has a ___ frequency.
high
signal-to-noise ratio
numerical values
numerical values
3. What is the equation for determining gray scale bit depth?
pixel
IRs
contrast
2^x
4. Extremely narrow window width requires the computer to ignore a ___ ____ of data outside the chosen range.
frequency - contrast - and noise
large amount
CD or DVD
abacus
5. What is required for collection of input information?
central processing unit
detector
greater
low-pass - band-pass - and high-pass
6. DICOM imaging now includes compatibility via a database system that includes linage of the patient images with the patient's EMR. This database system is called what?
programs and data
health level 7
numerical value
analog computers
7. What 3 things were required prior to digital computer applications in medical imaging?
mathematical theory - solid-state electronics - and microchip technology
Input devices
inverse
IR
8. Computers operate from ____ ____ language.
raster scan pattern
2^x
binary machine
0 - 1
9. What is critical to how fast the computer system can function?
IRs
2^x
bus speed
peripherals
10. What permit input/output of information to or from the CPU?
peripherals
number of values displayed per image side
matrix
bit
11. What is the frequency response of the incoming signal called?
bandwidth
1960s
write memory
1-2 lp/mm
12. The computer either ____ or ____ selected frequencies during the filtering process.
high
accentuates or suppresses
CPU - Bus
byte
13. The _____ the matrix size - the better the resolution.
low
greater
digital imaging and communication in medicine
pixel
14. Changes in window width are sometimes called gray scale ____ or ____.
TV camera
filtering
matrix size
expansion or compression
15. What permit input/output of information to or from the CPU?
program
software
peripherals
decrease
16. All medical imaging is achieved with which type of computers?
TV camera
digital computers
edge enhancement filtering or sharpening
1-2 lp/mm
17. What is the name of the 'modern electronic computer'?
band-pass filtering
bus
decrease
ENIAC
18. What is the process used in low-pass filtering that is accomplished by averaging adjacent pixels values?
1970s-1990s
large amount
high
smoothing
19. What is a square series of boxes that gives form to the image?
matrix
32
filtering
IRs
20. Extremely wide window width requires the computer to ignore ___ contrast differences in order to display the entire range of data.
scanning
fine
shades of gray
computers
21. What is required for collection of input information?
pixel size
200 - 500-1000
shades of gray
detector
22. What is an individual matrix box or picture element?
CT and MRI
200 - 500-1000
pixel
low-pass - band-pass - and high-pass
23. What is the system of conductors that connects the various components of a computer system and permits the CPU to accept inputs from any point along the conductor?
array processors
RAM
high
bus
24. Digitalization of analog information (increases / reduces) the quality and quantity of information?
ROM
digital image
200 - 500-1000
reduces
25. Window width and contrast have an ____ relationship.
IRs
inverse
0 - 1
matrix
26. What determines resolution?
pixel size
analog computers
IRs
analog computers
27. Which type of filter amplifies or deletes all but low frequencies - appears to reduce contrast - and is often used to remove high frequency nose.
1-2 lp/mm
two
mathematical theory - solid-state electronics - and microchip technology
low-pass filter
28. What are the two types of information computers use?
monitors and printers
programs and data
1000+
progressive scanning
29. When subject contrast is high - the acquired data contrast will be ____.
two
gray scale bit depth
high
DICOM standard
30. What are the 3 classifications of digitized image filters?
low-pass - band-pass - and high-pass
1960s
band-pass filtering
bus
31. Modalities differ in bit depth that is available depending on the capabilities of what?
mathematical theory - solid-state electronics - and microchip technology
fine
IR
expansion or compression
32. What 3 things were required prior to digital computer applications in medical imaging?
write memory
mathematical theory - solid-state electronics - and microchip technology
CD or DVD
magnetic tape
33. ____ circuits permit simultaneous transmission of information while ____ circuits transmit sequentially.
1000+
high
RAM
parallel - serial
34. 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.
window
array processors
array detection
high-pass filtering
35. What is the primary limitation with the resolution on digital images?
raster scan pattern
inverse
peripherals
software
36. What directs information to and from various parts of the computer?
transverse - sagittal - and coronal
central processing unit
noise
scanning or array detection
37. If window width increases - image contrast will ____.
decrease
1960s
mathematical theory - solid-state electronics - and microchip technology
matrix size
38. Digitalization of analog information (increases / reduces) the quality and quantity of information?
bus
peripherals
1-2 lp/mm
reduces
39. Which type of filter amplifies or deletes all but the high frequencies - appears to increase contrast - and is useful in vascular imaging or digital mammo.
fine
high-pass filtering
filtering
band-pass filtering
40. Scanners - mouse - keyboard - input memory disk drive - and paper printers are all forms of what?
accentuates or suppresses
software
little
peripherals
41. A low contrast image has a ___ frequency.
noise
low
CD or DVD
window
42. Who or What is responsible for density changes on a digital image? On a manual image
IRs
computer - radiographer
fine
binary machine
43. Computer equipment is called what?
decreased
CD or DVD
inversely
hardware
44. What are the two types of information computers use?
CT and MRI
RAM
smaller
programs and data
45. What type of scanning increases resolution but can't be used in real-time dynamic studies?
slow scanning
voxel
peripherals
number of values displayed per image side
46. Which computers handle data composed of continuously varying electrical currents?
CT and MRI
low-pass - band-pass - and high-pass
progressive scanning
analog computers
47. What is the frequency response of the incoming signal called?
memory
inversely
bandwidth
window
48. Computer memory is often rated in terms of total ____ memory.
software
high
2^x
byte
49. In what time period did microchip technology come out?
read memory
digital computers
byte
1960s
50. What is the name of the 'modern electronic computer'?
fine
ENIAC
read memory
noise
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