Reduction of Quantization Noise in PCM Image Coding.

Abstract

A new technique to reduce the effect of quantization in PCM image coding is presented in this report. The new technique consists of Roberts' pseudonoise technique followed by a noise reduction system. The technique by Roberts effectively transforms the signal dependent quantization noise to a signal independent additive random noise. The noise reduction system that follows reduces the additive random noise. Some examples are given to illustrate the performance of the new quantization noise reduction system. (Author)

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1979
Accession Number
ADA071247

Entities

People

  • Jae S. Lim

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Additives (Chemicals)
  • Air Force
  • Computer Programming
  • Degradation
  • Electrical Engineering
  • Engineering
  • Gray Scale
  • Image Restoration
  • Modulation
  • New Jersey
  • New York
  • Noise
  • Noise Reduction
  • Optical Properties
  • Power Spectra
  • Pulse Code Modulation
  • Signal Processing

Fields of Study

  • Engineering

Readers

  • Acoustics.
  • Computer Vision.
  • Speech Processing/Speech Recognition.