Study of user influence in routine SPM data processing
| Authors | |
|---|---|
| Year of publication | 2017 |
| Type | Article in Periodical |
| Magazine / Source | Measurement Science and Technology |
| MU Faculty or unit | |
| Citation | |
| Web | Plný text u vydavatele |
| Doi | http://dx.doi.org/10.1088/1361-6501/28/3/034014 |
| Keywords | scanning probe microscopy; data processing; user influence; robust methods |
| Attached files | |
| Description | The quantitative results obtained using scanning probe microscopy (SPM) are influenced not only by instrumentation factors, but also by humans-the SPM users that perform the data processing and the evaluation of statistical characteristics, dimensions and other parameters from the images. We investigate this user influence empirically by performing several experiments in which real humans process SPM data in different settings using the same software, and statistically characterise the results. Two types of experiments are conducted: one in a well-defined laboratory setting where prescribed procedures requiring user input are applied by experienced users to large ensembles of similar data; the other in an open setting in which a large group of SPM users evaluate the same images to obtain specified parameters but without external guidance. The open study in particular brings about results that should be alarming for the SPM community and SPM metrology in particular. We also attempt to derive some guidance for the design of SPM data processing software functions from the results and classify the amount of user input in the data processing functions. |
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