Detail publikace

Two-dimensional blind iterative deconvolution of medical ultrasound images

JIŘÍK, R. TAXT, T.

Originální název

Two-dimensional blind iterative deconvolution of medical ultrasound images

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

The paper presents a new approach to two-dimensional (2-D) blind deconvolution of ultrasonic images. Homomorphic deconvolution, so far the most successful method in this field, is based on the assumption %The most successful methods, based on homomorphic filtering, assume that the point spread function (PSF) and the tissue signal lie in different bands of the cepstrum domain, which is not completely true. Furthermore, 2-D phase unwrapping is necessary in 2-D homomorphic mapping, which is an ill-posed and noise-sensitive problem. Here, both limitations are avoided using blind iterative deconvolution, namely Van Cittert algorithm with reblurring. Simplified homomorphic deconvolution is used only for initial estimation. The algorithm is applied to the whole radiofrequency image, meaning that only the global spatially invariant component of the PSF is removed. Tests on synthetic and clinical images have shown that the deconvolution gives stable results of clearly higher spatial resolution and better defined tissue structures than in the input images.

Klíčová slova

Medical Ultrasound Imaging, Image Restoration, Itreative Blind Deconvolution, Homomorphic Deconvolution

Autoři

JIŘÍK, R.; TAXT, T.

Rok RIV

2005

Vydáno

1. 1. 2005

Nakladatel

IEEE UFFC

Místo

Piscataway, USA

ISBN

0-7803-8413-X

Kniha

Proceedings of 2004 IEEE Ultrasonics Symposium

Strany od

1262

Strany do

1265

Strany počet

4

BibTex

@inproceedings{BUT15152,
  author="Radovan {Jiřík} and Torfinn {Taxt}",
  title="Two-dimensional blind iterative deconvolution of medical ultrasound images",
  booktitle="Proceedings of 2004 IEEE Ultrasonics Symposium",
  year="2005",
  pages="1262--1265",
  publisher="IEEE UFFC",
  address="Piscataway, USA",
  isbn="0-7803-8413-X"
}