Deck 15: Mpeg Compression

Question 1

MPEG compression utilizes a combination of two different compression schemes, spatial and temporal.

Answer 1

True

Question 2

Spatial compression compares the changes between the images over time and stores the data that represents only the changes.

Answer 2

False

Question 3

Temporal compression uses the same technique as JPEG compression to create an intra picture called an I frame.

Answer 3

False

Question 4

P frames contain descriptions of how the pixel blocks in the previous frame have changed to create the current frame.

Question 5

B frames are similar to P frames but are different in that they look both forward and backward to compare pixel blocks.

Question 6

In sampling, each chrominance sample is shared by

A) 4:4:4
B) 4:2:2
C) 4:2:0
D) 4:1:1

Question 7

What form of MPEG comprises the Video CD (VCD format), the quality of which is analogous to that of the output of a VHS recorder?

A) MPEG-1
B) MPEG-2
C) MPEG-3
D) MPEG-4

Question 8

Nearly all digital video broadcast uses this standard, which results in DVD quality video and is also used to encode audio and video for broadcast satellite and cable TV.

A) MPEG-1
B) MPEG-2
C) MPEG-3
D) MPEG-4

Question 9

The formal name of the MP3 audio format is .

A) MPEG-1 Audio Layer 3
B) MPEG-2 Audio Layer 3
C) MPEG-3 Audio Layer 3
D) MPEG-4 Audio Layer 3

Question 10

Which version of MPEG was not covered in this chapter?

A) MPEG-1
B) MPEG-2
C) MPEG-3
D) MPEG-4