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Automated Image-Based Quantification of Neutrophil Extracellular Traps Using NETQUANT
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Published on: November 27, 2019

Embedded trellis coded quantization for JPEG2000.

Jicheng An1, Zixing Cai

  • 1College of Information Science and Engineering, Central South University, Changsha, Hunan, China. anjicheng@gmail.com

IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society
|August 15, 2008
PubMed
Summary
This summary is machine-generated.

This study introduces an improved embedded trellis coded quantization (TCQ) for JPEG2000 image compression. The enhanced method significantly boosts performance by refining the inversion process without the least significant bits.

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Area of Science:

  • Digital image compression
  • Signal processing
  • Information theory

Background:

  • JPEG2000 is a widely used image compression standard.
  • Trellis coded quantization (TCQ) is a key component in JPEG2000 for efficient data representation.
  • Inverting TCQ without least significant bits presents a challenge for optimal compression.

Purpose of the Study:

  • To present a modified embedded trellis coded quantization (TCQ) for JPEG2000.
  • To improve the method for approximately inverting TCQ when least significant bits are unavailable.
  • To demonstrate performance enhancements over the original embedded TCQ in JPEG2000.

Main Methods:

  • Development of a modified embedded TCQ algorithm.
  • Implementation of an improved inversion technique for TCQ.
  • Integration with an optimal rate control algorithm for JPEG2000.

Main Results:

  • The modified embedded TCQ shows significant performance improvements.
  • The improved inversion method enhances compression efficiency.
  • Experimental results validate the effectiveness of the proposed modifications.

Conclusions:

  • The modified embedded TCQ offers a substantial upgrade for JPEG2000.
  • The enhanced inversion technique addresses a critical limitation in TCQ.
  • This work contributes to more efficient and effective image compression standards.