Video compression system

Details Video compression system Video compression system

1984-10-30

1987-06-23

Faber, Alan

Dynamic magnetic information storage or retrieval

Manual input recording

360 32, 358135, H04N 592

Patent

active

046757503

ABSTRACT:
Video compression is achieved by taking the Hadamard transform of video data, comparing Hadamard coefficients from consecutive lines, encoding the changed coefficient values via an entropy coding technique, removing superfluous bits and storing the data on a magnetic tape. The stored data can then be reproduced, unpacked and decoded to regenerate the original video data signals, thereby achieving a very high degree of compression with little or no degradation of image quality.

REFERENCES:
patent: 3035121 (1962-05-01), Schreiber
patent: 3803348 (1974-04-01), Limb
patent: 4027331 (1977-05-01), Nicol

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