Given image sequences of closely packed particles, the underlying aim is to estimate diameters without explicit segmentation. In a way, this is similar to the task of counting objects without directly counting them. Such calculations may, for example, be useful fast estimation of particle size in different application areas. The topic is that of estimating average size (=average diameter) of packed particles, from formulas involving edge density, and the edges from moment-based thresholding are used. An average shape factor is involved in the calculations, obtained for some frames from crude partial segmentation. Measurement results from about 80 frames have been analyzed.
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机译：Rotavírus，adenovírus，astrovírus，calicivíruse“small Round Virus particles”em fezesdecrianças，com seseldarréiaaguda，noperíodode1987a a 1988，naGrandesãopauloRotavirus，adenovirus，astrovirus，calicivirus and small Round Virus particles in faeces 1987年至1988年期间，在圣保罗，有和没有急性腹泻的儿童
