Bitstream for evaluating predictive video decoders and a method

Details Bitstream for evaluating predictive video decoders and a method Bitstream for evaluating predictive video decoders and a method

1996-02-06

1998-03-24

Chin, Tommy P.

Television

Bandwidth reduction system

Data rate reduction

348181, 348180, 386109, 375224, H04N 712, H04N 1102, H04N 1104

Patent

active

057318395

ABSTRACT:
A bitstream for testing a video decoder that produces visual distortions in the output video images from the decoder whenever the decoder produces an error in decoding the bitstream. Specifically, the bitstream tests a predictive-type video decoder's capability to decode predicted images that do not propagate errors to other images or frames. For example, the bitstream is capable of demonstrating errant decoding of B-frames by an Moving Pictures Experts Group (MPEG) video encoder. A method and apparatus for generating and using the test bitstream is also disclosed.

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patent: 5313280 (1994-05-01), Straus
patent: 5452006 (1995-09-01), Auld
patent: 5537145 (1996-07-01), Miseli
Huang, S.J., MPEG-2 Video DecoderCompliance Test Methodology, 1995 Canadian Conference on Electrical and Computer Engineering (Cat. No. 95TH8103), pp. 559-562, Sep. 8, 1995.

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