Picture quality monitoring system

Details Picture quality monitoring system Picture quality monitoring system

1998-07-25

2000-04-25

Kostak, Victor R

Television

Monitoring, testing, or measuring

Transmission path testing

348184, H04N 1700

Patent

active

060550155

ABSTRACT:
A picture quality monitoring system for a television chain provides incremental metrics for each layer of the chain--video, compression and modulation. The output of each layer is stored as a reference signal for the next or subsequent layers. The output from each layer is compared with the output from a prior layer to determine an incremental degradation metric. All of the incremental degradation metrics may be combined to produce an overall degradation metric for the entire television chain.

REFERENCES:
patent: 5274446 (1993-12-01), Ashida
patent: 5446492 (1995-08-01), Wolf et al.
patent: 5574499 (1996-11-01), Nasu
patent: 5574500 (1996-11-01), Hamada et al.
patent: 5751766 (1998-05-01), Kletsky et al.
patent: 5862451 (1999-01-01), Grau et al.

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