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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 10/25/2014)