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Theoretical performance analysis of multi-slice channelized Hotelling observers

Bart Goossens UGent, Ljiljana Platisa UGent and Wilfried Philips UGent (2012) PROCEEDINGS OF SPIE, THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING. In Proceedings of SPIE 8318. p.83180U-1-83180U-12
abstract
Quality assessment of 3D medical images is becoming increasingly important, because of clinical practice rapidly moving in the direction of volumetric imaging. In a recent publication (Platisa, 2010), three multi-slice channelized Hotelling observer (msCHO) models are presented for the task of detecting 3D signals in multi-slice images, where each multi-slice image is inspected in a so called stack-browsing mode. The observer models are based on the assumption that humans observe multi-slice images in a simple two stage process, and each of the models implement this principle in a different way. In this paper, we investigate the theoretical performance, in terms of detection signal-to-noise-ratio (SNR) of msCHO models, for the task of detecting a separable signal in a Gaussian background with separable covariance matrix. We find that, despite the differences in architecture of the three models, they all have the same asymptotical performance in this task (i.e., when the number of training images tends to infinity). On the other hand, when backgrounds with non-separable covariance matrices are considered, the third model, msCHOc, is expected to perform slightly better than the other msCHO models (msCHOa and msCHOb), but only when sufficient training images are provided. These findings suggest that the choice between the msCHO models mainly depends on the experiment setup (e.g., the number of available training samples), while the relation to human observers depends on the particular choice of the “temporal” channels that the msCHO models use.
Please use this url to cite or link to this publication:
author
organization
year
type
conference (proceedingsPaper)
publication status
published
subject
keyword
VARIABILITY, IMAGE QUALITY, medical image quality assessment, Channelized Hotelling observer, NOISE, OBJECTIVE ASSESSMENT, SIGNAL, UNCERTAINTY
in
PROCEEDINGS OF SPIE, THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING
Proc. SPIE Int. Soc. Opt. Eng.
series title
Proceedings of SPIE
volume
8318
issue title
Medical imaging 2012 : Image perception, observer performance, and technology assessment
article number
83180U
pages
83180U-1 - 83180U-12
publisher
SPIE-INT SOC OPTICAL ENGINEERING
place of publication
Bellingham, WA, USA
conference name
Conference on Medical Imaging : Image Perception, Observer Performance, and Technology Assessment
conference location
San Diego, CA, USA
conference start
2012-02-08
conference end
2012-02-09
Web of Science type
Proceedings Paper
Web of Science id
000304905600027
ISSN
0277-786X
ISBN
9780819489678
DOI
10.1117/12.912068
language
English
UGent publication?
yes
classification
P1
copyright statement
I have transferred the copyright for this publication to the publisher
id
2978285
handle
http://hdl.handle.net/1854/LU-2978285
date created
2012-09-04 11:54:11
date last changed
2017-01-02 09:52:13
@inproceedings{2978285,
  abstract     = {Quality assessment of 3D medical images is becoming increasingly important, because of clinical practice rapidly moving in the direction of volumetric imaging. In a recent publication (Platisa, 2010), three multi-slice channelized Hotelling observer (msCHO) models are presented for the task of detecting 3D signals in multi-slice images, where each multi-slice image is inspected in a so called stack-browsing mode. The observer models are based on the assumption that humans observe multi-slice images in a simple two stage process, and each of the models implement this principle in a different way. In this paper, we investigate the theoretical performance, in terms of detection signal-to-noise-ratio (SNR) of msCHO models, for the task of detecting a separable signal in a Gaussian background with separable covariance matrix. We find that, despite the differences in architecture of the three models, they all have the same asymptotical performance in this task (i.e., when the number of training images tends to infinity). On the other hand, when backgrounds with non-separable covariance matrices are considered, the third model, msCHOc, is expected to perform slightly better than the other msCHO models (msCHOa and msCHOb), but only when sufficient training images are provided. These findings suggest that the choice between the msCHO models mainly depends on the experiment setup (e.g., the number of available training samples), while the relation to human observers depends on the particular choice of the {\textquotedblleft}temporal{\textquotedblright} channels that the msCHO models use.},
  articleno    = {83180U},
  author       = {Goossens, Bart and Platisa, Ljiljana and Philips, Wilfried},
  booktitle    = {PROCEEDINGS OF SPIE, THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING},
  isbn         = {9780819489678},
  issn         = {0277-786X},
  keyword      = {VARIABILITY,IMAGE QUALITY,medical image quality assessment,Channelized Hotelling observer,NOISE,OBJECTIVE ASSESSMENT,SIGNAL,UNCERTAINTY},
  language     = {eng},
  location     = {San Diego, CA, USA},
  pages        = {83180U:83180U-1--83180U:83180U-12},
  publisher    = {SPIE-INT SOC OPTICAL ENGINEERING},
  title        = {Theoretical performance analysis of multi-slice channelized Hotelling observers},
  url          = {http://dx.doi.org/10.1117/12.912068},
  volume       = {8318},
  year         = {2012},
}

Chicago
Goossens, Bart, Ljiljana Platisa, and Wilfried Philips. 2012. “Theoretical Performance Analysis of Multi-slice Channelized Hotelling Observers.” In Proceedings of Spie, the International Society for Optical Engineering, 8318:83180U–1–83180U–12. Bellingham, WA, USA: SPIE-INT SOC OPTICAL ENGINEERING.
APA
Goossens, B., Platisa, L., & Philips, W. (2012). Theoretical performance analysis of multi-slice channelized Hotelling observers. PROCEEDINGS OF SPIE, THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING (Vol. 8318, pp. 83180U–1–83180U–12). Presented at the Conference on Medical Imaging : Image Perception, Observer Performance, and Technology Assessment, Bellingham, WA, USA: SPIE-INT SOC OPTICAL ENGINEERING.
Vancouver
1.
Goossens B, Platisa L, Philips W. Theoretical performance analysis of multi-slice channelized Hotelling observers. PROCEEDINGS OF SPIE, THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING. Bellingham, WA, USA: SPIE-INT SOC OPTICAL ENGINEERING; 2012. p. 83180U–1–83180U–12.
MLA
Goossens, Bart, Ljiljana Platisa, and Wilfried Philips. “Theoretical Performance Analysis of Multi-slice Channelized Hotelling Observers.” Proceedings of Spie, the International Society for Optical Engineering. Vol. 8318. Bellingham, WA, USA: SPIE-INT SOC OPTICAL ENGINEERING, 2012. 83180U–1–83180U–12. Print.