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MedZip: 3D Medical Images Lossless Compressor Using Recurrent Neural Network (LSTM)

Omniah Nagoor, J. Whittle, Jingjing Deng, Benjamin Mora Orcid Logo, Mark Jones Orcid Logo, Joss O. Whittle Orcid Logo

2020 25th International Conference on Pattern Recognition (ICPR)

Swansea University Authors: Omniah Nagoor, Jingjing Deng, Benjamin Mora Orcid Logo, Mark Jones Orcid Logo, Joss O. Whittle Orcid Logo

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DOI (Published version): 10.1109/icpr48806.2021.9413341

Abstract

As scanners produce higher-resolution and more densely sampled images, this raises the challenge of data storage, transmission and communication within healthcare systems. Since the quality of medical images plays a crucial role in diagnosis accuracy, medical imaging compression techniques are desir...

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Published in: 2020 25th International Conference on Pattern Recognition (ICPR)
ISBN: 9781728188089
Published: IEEE 2021
Online Access: http://dx.doi.org/10.1109/icpr48806.2021.9413341
URI: https://cronfa.swan.ac.uk/Record/cronfa55395
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Abstract: As scanners produce higher-resolution and more densely sampled images, this raises the challenge of data storage, transmission and communication within healthcare systems. Since the quality of medical images plays a crucial role in diagnosis accuracy, medical imaging compression techniques are desired to reduce scan bitrate while guaranteeing lossless reconstruction. This paper presents a lossless compression method that integrates a Recurrent Neural Network (RNN) as a 3D sequence prediction model. The aim is to learn the long dependencies of the voxel's neighbourhood in 3D using Long Short-Term Memory (LSTM) network then compress the residual error using arithmetic coding. Experiential results reveal that our method obtains a higher compression ratio achieving 15% saving compared to the state-of-the-art lossless compression standards, including JPEG-LS, JPEG2000, JP3D, HEVC, and PPMd. Our evaluation demonstrates that the proposed method generalizes well to unseen modalities CT and MRI for the lossless compression scheme. To the best of our knowledge, this is the first lossless compression method that uses LSTM neural network for 16-bit volumetric medical image compression.
College: Faculty of Science and Engineering