Encoding/decoding video signals using quantization tables based

Details Encoding/decoding video signals using quantization tables based Encoding/decoding video signals using quantization tables based

1995-09-29

1998-09-22

Voeltz, Emanuel Todd

Television

Special applications

Simulator

348405, H04N 713

Patent

active

058127887

ABSTRACT:
Video signals are encoded and decoded using a set of quantization tables that is generated from a base matrix and a scale matrix, which are both explicitly encoded into the encoded video bitstream. The sets of quantization tables may be changed as often as needed as long as the new base and scale matrices are explicitly encoding into the bitstream.

REFERENCES:
patent: 5157488 (1992-10-01), Pennebaker
patent: 5535138 (1996-07-01), Keith

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