Adaptive field/frame encoding of discrete cosine transform

Details Adaptive field/frame encoding of discrete cosine transform Adaptive field/frame encoding of discrete cosine transform

1997-01-07

1998-04-07

Lee, Richard

Television

Bandwidth reduction system

Data rate reduction

348420, 382250, H04N 730

Patent

active

057370206

ABSTRACT:
A method of Discrete Cosine Transform compression of a digital video image. In the method the Field Variance and Frame Variance are calculated. When the Field Variance is less than the Frame Variance, Field Discrete Cosine Transform type compression is performed. Alternatively, when the Frame Variance is less than the Field Variance, then a Frame Discrete Cosine Transform compression is performed.

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