1. Yale University, Department of Computer Science, Computer Graphics Group, New Haven 06511, United States
2. University of British Columbia and Vancouver Coastal Health Research Institute, Department of Dermatology and Skin Science, Photomedicine Institute, Vancouver V5Z 4E8, Canada
3. University of British Columbia and Vancouver Coastal Health Research Institute, Department of Dermatology and Skin Science, Photomedicine Institute, Vancouver V5Z 4E8, CanadacBC Cancer Agency, Departments of Cancer Control Research and Integrative Oncolog
4. University of Oulu, Opto-Electronics and Measurement Techniques Laboratory, Oulu FI-9014, Finland