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525 lines
60/interlaced/hz |
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625 lines
50/interlaced/hz |
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| If one interlaced scan is half of the image, how many whole images do you get from 60 hertz? |
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| If one interlaced scan is half of the image, how many whole images do you get from 50 hertz? |
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| Displays both interlaced fields simultaneously. Made possible by digital broadcast |
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| Lower shutter speeds allow for more of this. |
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| Used to convert 24 fps to 30 fps. Allowed movies to be broadcasted on analog television |
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| Measures video signal- Luminance |
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| Measures video signal- Chrominance |
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| Allowed for more content to be broadcast in less bandwidth. |
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| Enable multicast channels |
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| Allowed for HDTV over the air |
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| Taking something big and making it smaller. We do this with resolution, temporal data, color depth |
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| Takes time into account for video compression |
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| Only records things that are changing in video frame |
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| Sample reference frames at defined intervals |
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| The compression formats that the camera uses |
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| The compression format that is compressed less to conserve quality for post production |
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| The compression format that renders for the final product. |
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| These types of codecs try less to conserve space and work harder at preserving original data making them excellent for compositing before final output. |
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| Every frame is sampled and stored separately as is. |
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| Each successive frame is compared with the previous one and only what is different is recorded for successive frames. |
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| Long GOP MPEG-2 Interframe |
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| Analyzes 15 frames. It can use any of the 15 frames as reference for constructing the other frames making it an extremely efficient compression. |
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| When dealing with compression the number of distinct colors that can be represented by a pixel depends on this. |
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| The bpp in recording digital video is often reduced by chroma subsampling |
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| The first number in a compression ratio refers to this type of data |
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| The second two numbers in a compression ration are what type of data |
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