Breast volume denoising and noise characterization by 3D wavelet transform

Computerized Medical Imaging and Graphics : the Official Journal of the Computerized Medical Imaging Society
Zikuan Chen, Ruola Ning

Abstract

Breast imaging through cone-beam computed tomography provides a digital breast volume, with which the three-dimensional (3D) breast tissues can be analyzed. Data denoising, as a preprocessing step for subsequent volumetric breast segmentation is always needed. In this paper, we report a volumetric denoising technique by a separable 3D wavelet transform (WT), i.e. a '2D WT plus 1D WT' scheme. Specifically, the scheme performs two-dimensional (2D) wavelet denoising on a stack of slice images of the breast volume, followed by one-dimensional (1D) wavelet denoising along the stacking direction. The denoising is achieved by wavelet decomposition, high-pass subband attenuation, and wavelet synthesis. A one-level 3D WT produces eight subbands occupying the octants of the 3D wavelet space. Multilevel WT also provides a multiresolution representation of breast volume, i.e. a sequence of low-pass subbands. In general, most noise and irregularity features are imparted into the high-pass subbands, which are removed or reduced for denoising purpose. Meanwhile, the information in a subband can be characterized in terms of energy, variance, and entropy. Through 3D visualization, the spatial structure in a subband can also be visually perceive...Continue Reading

References

May 30, 2002·Medical Physics·Biao Chen, Ruola Ning
Aug 5, 2003·Physics in Medicine and Biology·Zikuan Chen, Ruola Ning

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Citations

Oct 21, 2006·Journal of Mammary Gland Biology and Neoplasia·John M BooneThomas R Nelson
Apr 25, 2012·BMC Medical Imaging·Zikuan Chen, Vince Calhoun
Oct 5, 2010·Concepts in Magnetic Resonance. Part B, Magnetic Resonance Engineering·Zikuan Chen, Vince D Calhoun
Nov 6, 2014·Computational and Mathematical Methods in Medicine·Tae-Yun KimHeung-Kook Choi
Nov 16, 2011·Healthcare Informatics Research·Tae-Yun KimKwang-Gi Kim
Dec 25, 2009·International Journal of Computer Assisted Radiology and Surgery·Naruomi Yasuda, Yoshie Kodera
Sep 20, 2005·Microscopy Research and Technique·Gregory B SandsIan J Legrice
Jul 5, 2021·Computer Methods and Programs in Biomedicine·Zeyuan Chen, Zikuan Chen

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