Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Physics 2 > Lecture 7 > Flashcards

Lecture 7 Flashcards

You may prefer our related Brainscape-certified flashcards:
Physics 101 flashcards AP® Physics flashcards
1
Q

In image memory each image is stored as

A

Frame of information

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

The storing of frames is

A

Continuous

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Image memory freeze frame displays

A

Latest image stored in memory

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Image memory cineloop displays

A

Last 100-130 images

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Numbers are stored in the ________ accoring to the _____ of the echoes recieved from the corresponding anatomic locations

A

Memory elements (pixels)

Intensity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

One matrix can only show ____ shades of grey (________ )

A

2

On and off

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

More than 2 shade of grey require

A

More matrices (more bits)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Working a one bit pixel you would only have

A

Two options 0 or 1

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

A 1 bit pixel is called

A

Bistable

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

4 bits per pixel means

A

4 bits deep

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

The amount of bits a pixel can have is

A

Binary

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Each column in binar table represents

A

A bit

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

2 bit pixel has how many options

A

4

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Bit depth/capacity is what

A

How many options

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

The majority of US machines use _______ bit memory

A

6-8

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

How many shades of grey can humans see in

A

100 shades

17
Q

The binary number system is an alternative to

A

The decimal system

18
Q

What is contrast resolution

A

Being able to serperate two different echoes as two different shades of gray

19
Q

CR equation

A

CR=dB/shade

20
Q

Compression affected

A

Dynamic range

21
Q

What is dynamic range

A

Power ratio of largest to smallest amplitude

22
Q

Why do we want compression to reduce the dynamic range

A

So we wont have as many different amplitudes to deal with

23
Q

More bits/pixel =______ contrast resolution

A

Better

24
Q

Is bits per pixel operator controlled

A

No, manufacturer dependent

25
Q

How does more shades and more contrast appear

A

Granier

26
Q

Other equation how contrast resolution

A

Contrast resolution = dynamic range/ bits-per-pixel

27
Q

More pixels/ frame =

A

Better detail resolution

Not to be confused with contrast resolution

28
Q

8 bits = ____ byte

A

1 bytes

29
Q

1 kilobyte= _____ bytes

A

1024

30
Q

When information is pulled from the image memory and post-processed it is ready to be sent to

A

Display

31
Q

The display requires

A

Analogs signals

32
Q

How is the information changed to analog

A

Digital to analog converter

33
Q

In digital to analog converter digal memory (#s) —>

A

Voltages for display

Physics 2 (11 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions