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Volumetric detection tasks with varying complexity: human observer performance

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Abstract
This study explores detection performance trends of human observers with respect to two parameters: task complexity determined by the frequency content of background and signal, and image viewing mode: singleslice (ss) versus multi-slice (ms) stack-browsing image presentation. The images are 3D correlated Gaussian noise with a 3D Gaussian signal centered in the image volume. To vary task complexity, we consider three different noise kernels while keeping the signal spread constant across all images. In ss mode, only the central slice of the volume is presented to the observer, while in ms mode all slices are available. All human readings are conducted in a controlled viewing environment on a 5MP digital mammography medical display. Overall, in line with the literature, we find that human performance increases in ms relative to ss image presentation mode. Furthermore, our experiments indicate that the extent of difference between ms and ss performance is influenced by the properties of image data (level of task complexity): the difference in performance increases (from ΔAUC= 0.14 to ΔAUC= 0.30) as the difference in the frequency content of the signal and the background increases. In other words, the benefit of having additional slices available in ms mode is larger for lower-complexity tasks. Future studies shall focus on comparing the results of the present study to the existing model observers for volumetric images, ultimately aiming to design an anthropomorphic model observer for volumetric detection tasks.
Keywords
LESION-DETECTION, HOTELLING OBSERVER, DORFMAN-BERBAUM-METZ, MODEL OBSERVERS, MULTISLICE, NOISE, Volumetric Images, Stack Browsing, Detection Task, Human observer, Model Observer, Efficiency

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Chicago
Platisa, Ljiljana, Asli Kumcu, Milan Platisa, Ewout Vansteenkiste, Karel Deblaere, Aldo Badano, and Wilfried Philips. 2012. “Volumetric Detection Tasks with Varying Complexity: Human Observer Performance.” In Proceedings of the Society of Photo-optical Instrumentation Engineers (spie), ed. Craig  K Abbey and Claudia R Mello-Thoms. Vol. 8318. Bellingham, WA, USA: SPIE.
APA
Platisa, L., Kumcu, A., Platisa, M., Vansteenkiste, E., Deblaere, K., Badano, A., & Philips, W. (2012). Volumetric detection tasks with varying complexity: human observer performance. In C. K. Abbey & C. R. Mello-Thoms (Eds.), PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) (Vol. 8318). Presented at the Conference on Medical Imaging - Image Perception, Observer Performance, and Technology Assessment, Bellingham, WA, USA: SPIE.
Vancouver
1.
Platisa L, Kumcu A, Platisa M, Vansteenkiste E, Deblaere K, Badano A, et al. Volumetric detection tasks with varying complexity: human observer performance. In: Abbey CK, Mello-Thoms CR, editors. PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE). Bellingham, WA, USA: SPIE; 2012.
MLA
Platisa, Ljiljana, Asli Kumcu, Milan Platisa, et al. “Volumetric Detection Tasks with Varying Complexity: Human Observer Performance.” Proceedings of the Society of Photo-optical Instrumentation Engineers (spie). Ed. Craig  K Abbey & Claudia R Mello-Thoms. Vol. 8318. Bellingham, WA, USA: SPIE, 2012. Print.
@inproceedings{1925010,
  abstract     = {This study explores detection performance trends of human observers with respect to two parameters: task complexity determined by the frequency content of background and signal, and image viewing mode: singleslice (ss) versus multi-slice (ms) stack-browsing image presentation. The images are 3D correlated Gaussian noise with a 3D Gaussian signal centered in the image volume. To vary task complexity, we consider three different noise kernels while keeping the signal spread constant across all images. In ss mode, only the central slice of the volume is presented to the observer, while in ms mode all slices are available. All human readings are conducted in a controlled viewing environment on a 5MP digital mammography medical display. Overall, in line with the literature, we find that human performance increases in ms relative to ss image presentation mode. Furthermore, our experiments indicate that the extent of difference between ms and ss performance is influenced by the properties of image data (level of task complexity): the difference in performance increases (from \ensuremath{\Delta}AUC= 0.14 to \ensuremath{\Delta}AUC= 0.30) as the difference in the frequency content of the signal and the background increases. In other words, the benefit of having additional slices available in ms mode is larger for lower-complexity tasks. Future studies shall focus on comparing the results of the present study to the existing model observers for volumetric images, ultimately aiming to design an anthropomorphic model observer for volumetric detection tasks.},
  articleno    = {83180S},
  author       = {Platisa, Ljiljana and Kumcu, Asli and Platisa, Milan and Vansteenkiste, Ewout and Deblaere, Karel and Badano, Aldo and Philips, Wilfried},
  booktitle    = {PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE)},
  editor       = {Abbey, Craig  K and Mello-Thoms, Claudia R},
  isbn         = {9780819489678},
  issn         = {0277-786X},
  keyword      = {LESION-DETECTION,HOTELLING OBSERVER,DORFMAN-BERBAUM-METZ,MODEL OBSERVERS,MULTISLICE,NOISE,Volumetric Images,Stack Browsing,Detection Task,Human observer,Model Observer,Efficiency},
  language     = {eng},
  location     = {San Diego, CA, USA},
  pages        = {12},
  publisher    = {SPIE},
  title        = {Volumetric detection tasks with varying complexity: human observer performance},
  url          = {http://dx.doi.org/10.1117/12.911558},
  volume       = {8318},
  year         = {2012},
}

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