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- W2156108278 abstract "Clinical procedures and legal requirements increasingly demand greater performance in JPEG compression of digitised grayscale medical images without loss of visual fidelity or without exceeding a bounded error metric. Current JPEG common practice uses a default general-purpose luminance quantisation matrix. As an initial investigation into defining more suitable quantisation matrices for different medical image modalities, a new candidate matrix has been derived for mammograms. For a given SNR, the new quantisation matrix achieves a relative compression ratio performance improvement of approximately 22% for a quality factor of 95% and 15% for a quality factor of 85%. This study paves the way for a computationally intelligent approach to optimising the quantisation matrix for each medical image modality in both batch mode and adaptively on an image-by-image basis." @default.
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- W2156108278 date "2001-01-01" @default.
- W2156108278 modified "2023-09-26" @default.
- W2156108278 title "Mammogram JPEG quantisation matrix optimisation for PACS" @default.
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- W2156108278 doi "https://doi.org/10.1109/anziis.2001.974038" @default.
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