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Authors:A. Johannes Pretorius: School of Computing, University of Leeds, UK
Derek Magee: School of Computing, University of Leeds, UK
Darren Treanor: Leeds Teaching Hospitals Trust/Leeds Institute of Molecular Medicine, University of Leeds, UK
Roy A. Ruddle: School of Computing, University of Leeds, UK
Publication title:Visual Parameter Optimization for Biomedical Image Analysis: A Case Study
Conference:Proceedings of SIGRAD 2012, Interactive Visual Analysis of Data, November 29–30, 2012, Växjö, Sweden
Publication type: Abstract and Fulltext
Issue:081
Article No.:009
Abstract:The conventional approach for parameter optimization of biomedical image analysis algorithms is to tweak parameters by trial-and-error. This presents a challenge: parameter space is often inadequately explored and, consequently, output quality suffers. Interactive visualization can alleviate this problem but has not been widely adopted. Moreover, few examples of the successful application of visualization for parameter optimization of image analysis algorithms have been published. To address this and to illustrate the potential usefulness of interactive visualization, we present a case study. A multidisciplinary team developing novel image segmentation software for histopathology was observed. Within the context of our study, our hypotheses were confirmed: (1) using interactive visualisation, participants considered larger parts of parameter space than they had previously by trial-and-error; (2) participants gained a better understanding of their algorithm (an unknown logic error and errors in its implementation were discovered); and (3) participants achieved higher quality output. Our work is also an example of the value of case studies in iterative design. We describe how a valuable additional requirement was revealed (the importance of derived measures) and how our visualization method was extended to cater for this.
Language:English
Keywords:H.5.2 [Information Interfaces and Presentation]: User Interfaces—Visualization; I.3.8 [Computer Graphics]: Applications—Biomedicine
Year:2012
No. of pages:9
Pages:67-75
ISBN:978-91-7519-723-4
Series:Linköping Electronic Conference Proceedings
ISSN (print):1650-3686
ISSN (online):1650-3740
File:http://www.ep.liu.se/ecp/081/009/ecp12081009.pdf
Available:2012-11-20
Publisher:Linköping University Electronic Press, Linköpings universitet

REFERENCE TO THIS PAGE
A. Johannes Pretorius, Derek Magee, Darren Treanor, Roy A. Ruddle (2012). Visual Parameter Optimization for Biomedical Image Analysis: A Case Study, Proceedings of SIGRAD 2012, Interactive Visual Analysis of Data, November 29–30, 2012, Växjö, Sweden http://www.ep.liu.se/ecp_article/index.en.aspx?issue=081;article=009 (accessed 8/21/2014)