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Related Concept Videos

Propagation of Uncertainty from Random Error00:59

Propagation of Uncertainty from Random Error

An experiment often consists of more than a single step. In this case, measurements at each step give rise to uncertainty. Because the measurements occur in successive steps, the uncertainty in one step necessarily contributes to that in the subsequent step. As we perform statistical analysis on these types of experiments, we must learn to account for the propagation of uncertainty from one step to the next. The propagation of uncertainty depends on the type of arithmetic operation performed on...
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The atomic mass of an element varies due to the relative ratio of its isotopes. A sample's relative proportion of oxygen isotopes influences its average atomic mass. For instance, if we were to measure the atomic mass of oxygen from a sample, the mass would be a weighted average of the isotopic masses of oxygen in that sample. Since a single sample is not likely to perfectly reflect the true atomic mass of oxygen for all the molecules of oxygen on Earth, the mass we obtain from this particular...
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An algorithm for compression of bilevel images.

IEEE transactions on image processing : a publication of the IEEE Signal Processing Society·2008
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Related Experiment Video

Updated: Jul 7, 2026

Continuous-Wave Propagation Channel-Sounding Measurement System - Testing, Verification, and Measurements
09:36

Continuous-Wave Propagation Channel-Sounding Measurement System - Testing, Verification, and Measurements

Published on: June 25, 2021

Extending the BACIC algorithm for robust transmission over a noisy channel.

M D Reavy1, C G Boncelet

  • 1WorldGate Commun. Inc., Trevose, PA 19053, USA. mreavy@wgate.com

IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society
|February 12, 2008
PubMed
Summary

This study presents block arithmetic coding for image compression (BACIC), a new lossless method for bilevel images. BACIC achieves high compression and error resilience, outperforming existing standards.

Related Experiment Videos

Last Updated: Jul 7, 2026

Continuous-Wave Propagation Channel-Sounding Measurement System - Testing, Verification, and Measurements
09:36

Continuous-Wave Propagation Channel-Sounding Measurement System - Testing, Verification, and Measurements

Published on: June 25, 2021

Area of Science:

  • Computer Science
  • Image Processing
  • Data Compression

Background:

  • Bilevel image compression is crucial for applications like facsimile transmission.
  • Existing standards like G3 lack robust error control for noisy channels.
  • Block arithmetic coding for image compression (BACIC) is a novel approach.

Purpose of the Study:

  • To introduce an error control mechanism into BACIC for enhanced data integrity.
  • To evaluate BACIC's performance in terms of compression ratio and error resilience.
  • To compare BACIC with existing standards like G3.

Main Methods:

  • Implementing error control within the BACIC algorithm.
  • Testing BACIC with simulated channel bit error rates up to 10(-3).
  • Measuring compression ratios achieved by BACIC.

Main Results:

  • BACIC successfully transmits bilevel images even with high bit error rates (up to 10(-3)).
  • BACIC provides compression ratios twice as effective as the G3 facsimile standard.
  • The integrated error control enhances the robustness of BACIC.

Conclusions:

  • BACIC offers a superior solution for lossless bilevel image compression with error control.
  • BACIC demonstrates significant advantages over G3 in both compression efficiency and error resilience.
  • This advancement is particularly beneficial for image transmission over unreliable communication channels.