Origins of many strange things in video
summary
A rapid checklist of concrete origins and whether they hold up: interlace 1880 patent explains fields as a bandwidth hack that worked for analog broadcasts; 4:2:0 from 1949 Alda Bedford explains chroma subsampling as a bandwidth vs acuity tradeoff that still sometimes fails on high‑density displays; 29.97 = 30000/1001 results from squeezing color into NTSC’s BW band and spawns awkward frame math; 44.1 kHz to fit Beethoven's 9th admits CD decisions were driven by media capacity not science.
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chapters (11)
- 0:00Intro
- 0:20Evolution of Video Technologies
- 0:39Frames and Framerates
- 3:24Sequences of Lines
- 4:38Telecine
- 5:47Pixels, Resolutions, SARS, DARS
- 6:49Standard Video Resolutions
- 8:03Audio Sampling Rates
- 9:41Color Spaces
- 11:34Chroma subsampling
- 13:56Conclusions
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