The Effect of BSC on PCM Picture Quality

Thomas S. Huang, Mohamed T. Chikhaoui

Research output: Contribution to journalArticlepeer-review


We report some results on the subjective effect of noise introduced in the received pictures of a PCM system by a binary symmetrical channel. More specifically, such noise was compared with noise introduced by an additive white Gaussian channel to a PAM system. It was found that for high signal-to-noise ratios, the Gaussian noise is more objectionable than the BSC noise, while the reverse is true for low signal-to-noise ratios. The crossover point lies in the range 16–20 dB peak signal-to-noise ratio, and tends to occur at a higher signal-to-noise ratio for a picture containing more details.

Original languageEnglish (US)
Pages (from-to)270-273
Number of pages4
JournalIEEE Transactions on Information Theory
Issue number2
StatePublished - Apr 1967
Externally publishedYes

ASJC Scopus subject areas

  • Information Systems
  • Computer Science Applications
  • Library and Information Sciences


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