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On Shepard-Gupta-type operators.

Umberto Amato1, Biancamaria Della Vecchia2

  • 11Consiglio Nazionale delle Ricerche, Istituto per la Microelettronica e Microsistemi, Napoli, Italy.

Journal of Inequalities and Applications
|March 7, 2019
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Summary
This summary is machine-generated.

Researchers introduced a new Gupta-type variant of Shepard operators, providing convergence and approximation results. This variant improves a previous algorithm for image compression applications.

Keywords:
Direct and converse resultsGupta-type variantImage compressionShepard operators

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Area of Science:

  • Approximation Theory
  • Numerical Analysis

Background:

  • Shepard operators are fundamental in approximation theory.
  • Existing variants have limitations in certain applications.

Purpose of the Study:

  • Introduce a novel Gupta-type variant of Shepard operators.
  • Analyze its approximation properties and convergence.
  • Explore its application in image compression.

Main Methods:

  • Construction of the Gupta-type Shepard operators.
  • Theoretical analysis of convergence and approximation error bounds (pointwise and uniform).
  • Implementation and evaluation in an image compression algorithm.

Main Results:

  • Established convergence theorems for the new operators.
  • Derived direct and converse approximation theorems.
  • Demonstrated improved performance in image compression compared to previous methods.

Conclusions:

  • The Gupta-type Shepard operators offer enhanced approximation capabilities.
  • The proposed variant shows practical utility in image compression.
  • Further research can explore generalizations and other applications.