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20 Cards in this Set
- Front
- Back
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Into what two components is the data stream split? |
audio and video |
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what information does an intra frame contain? |
only information in the picture itself |
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what is srored in the P-frames following and i-frame |
only difference between the P-frame and the i-frame |
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what is storedin a p-frame in the case of a bouncing ball? |
a descriptiopn of how the position of the ball has changed from the prevoius i-frame as well as shape or colour changes |
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what gives the massive reduction in the amount of informatuon needet to repdouce a video sequence? |
only storing differnces between the frames |
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why is a new i-frame used after a few p-frames? |
a small margin of error creeps in with each p-frame |
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what is stored in a b-frame |
the fiddefrence between previous I or P frame and the B-frame and the following I or P frame |
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why do B-frames not propagate error |
no other frame is ever based on b-frame |
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jpeg is the most comong compresion syssem used in video |
false |
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p-frames only store the changes in the image |
true |
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there is always at leas one p-frame between two iframes |
true |
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b-frames store the complete picture information |
false |
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there can only be one b-frame between each i and p frame |
false |
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ther are ypically about four p-frames between each i-frame |
true |
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algorithm |
a formula used for decompressing components of data stream |
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i-frame |
a compressed video frame that contains the complete image information |
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jpeg |
a type of compression used for bitmap images |
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p-frame |
a compressed video frame known as a predicted frame |
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b-frame |
a compressed video frame that stores changes between the frame before it and the frame after it |
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MPEG |
a common type of compression used for video data |
