Video: an electronic medium for the recording and display of moving visual media
Frame rate: The frequency with which the images or frames are recorded
Interlaced encoding
- The data from a single frame are encoded as two separate fields - the image is rendered by alternating between the even field and the odd field
- One contains the data for the even numbered rows and the other has the data for the odd-numbered row
- Originally used in TV broadcasting and adapted for video recordings
Spatial order: shows which should be the odd or even field
Temporal order: field or frame and which field represents an earlier moment of the time
- Field rate = 2 * frame rate
- Halves the transmission bandwidth requirements
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