• Publications
  • Influence
The Effect of Dither on Luminance Quantization of Pictures
TLDR
This work analyzes the operation of a dithered quantizer of picture luminance. Expand
  • 72
Ordered dither patterns for coarse quantization of pictures
It is well known that a coarse quantizer can be used for pulse-code modulation (PCM) picture transmission when random dither is added to the video, and that synchronous dither subtraction at theExpand
  • 12
A Decimal Code for Analog-to-Digital Conversion
  • B. Lippel
  • Computer Science
  • IRE Trans. Electron. Comput.
  • 1 December 1955
  • 5
Improvement of a Coarse Picture Quantizer by Means of Ordered Dither.
Abstract : The digital representation of a photograph must, as a rule, provide at least six bits per sample point to avoid noticeable distortion. When a picture (or television) is sent by simpleExpand
  • 1
A Method for Obtaining Complete Digital Coding Chains
  • 2
Comments on "A fast analog to Gray code converter"
TLDR
The successive-approximation method which encodes an analog voltage into Gray Code by using the absolute values of successive residues is very old, and references are given to some of the earliest publications. Expand
  • 1
Experiments with a New Message Format for Digital Representation of Photographs.
TLDR
A radically different structure for the picture message that includes more than L square bits of some, more important, significance ranks. Expand
  • 2
Comments on "A New Technique for Displaying Continuous Tone Images on a Bilevel Display"
  • B. Lippel
  • Computer Science
  • IEEE Trans. Commun.
  • 1 February 1978
TLDR
It is shown that, when ordered dither is employed, the constrained-average algorithm presented in the above paper is equivalent to ordered-dither coding of a picture which has been subjected to a well-known method of edge enhancement. Expand
  • 3
Negative-Bit-Weight Codes and Excess Codes
  • B. Lippel
  • Computer Science
  • IEEE Trans. Electron. Comput.
  • 1 June 1964
  • 1