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Perceptual Criteria on JPEG2000 Quantization

Jesús Jaime Moreno Escobar, Xavier Otazu, Maria Vanrell
New Trends and Challenges in Computer Vision: Progress of Research and Development - 2009
Download the publication : MOVa2009.pdf [1.1Mo]  
The aim of this work is to explain how the Brightness Induction Wavelet Model used as a perceptual quantizer can be useful for improving a lossy compression and to introduce preliminary results. In fact, this approach consists in quantizing wavelet transform coefficients using the human visual system behavior properties. When compressing images, noise is fatal to compression performance, it can be both annoying for the observer and consuming excessive amounts of bandwidth when the imagery is transmitted. The perceptual quantization based on a chromatic induction reduces unperceivable details and thus improve both visual impression and transmission properties. The comparison between JPEG2000 without and with perceptual quantization shows that the latter is not favorable in PSNR, but the recovered image is more compressed at the same or even better visual quality measured with a weighted PSNR.

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BibTex references

@InProceedings\{MOV2009a,
  author       = "Jes\'us Jaime Moreno Escobar and Xavier Otazu and Maria Vanrell",
  title        = "Perceptual Criteria on JPEG2000 Quantization",
  booktitle    = "New Trends and Challenges in Computer Vision: Progress of Research and Development",
  year         = "2009",
  abstract     = "The aim of this work is to explain how the Brightness
Induction Wavelet Model used as a perceptual quantizer
can be useful for improving a lossy compression and
to introduce preliminary results. In fact, this approach
consists in quantizing wavelet transform coefficients
using the human visual system behavior properties.
When compressing images, noise is fatal to compression
performance, it can be both annoying for the observer
and consuming excessive amounts of bandwidth when the
imagery is transmitted. The perceptual quantization based
on a chromatic induction reduces unperceivable details
and thus improve both visual impression and transmission
properties. The comparison between JPEG2000 without
and with perceptual quantization shows that the latter is
not favorable in PSNR, but the recovered image is more
compressed at the same or even better visual quality
measured with a weighted PSNR.",
  url          = "http://cat.uab.cat/Public/Publications/2009/MOV2009a"
}

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