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Automated Pollen-Grain Counting

Authors: Gyllenhammar, Fredrik;

Automated Pollen-Grain Counting

Abstract

Denne oppgaven utforsker hvodan CNN baserte objektdeteksjonsmodeler kan bruker til å lokalisere of klassifisere pollenkorn ved hjelp av mikroskopisk bilde data. Telling av pollen er en sentral metode innen mange forskellige felt, f.eks. krimimalogi, arkeologi, og geologi. Dette er en møysommelig og veldig tidkrevende oppgave som per nå krever ekspertkunnskap. Fra litteraturen finnes det åpne spørsmål med hensyn til kompleksiteten som trengs for å løse dette problemet i forhold til mer vanlige objektdeteksjonsoppgaver. Effekten skarpheten til treningsekemplene her på modellen er også uklar. Eksperimenter med en "Single Shot Multibox" deteksjonsmodell viser at problemet er løselig med en fullt konvolusjonell modell. Den regulære formen til pollenkorn tillater visse forenklinger av modellen, men likhetene på tvers av klassene fører til tap av nøyaktighet i mindre modellkonfigurasjoner. Ekskludering av uskarpe data fra modellopplæringen får modellen til å fiksere på skarphet, noe som reduserer modellens evne til å identifisere korn som er mindre skarpe en trenings eksemplene. Trening med uskarpe eksempeler ser ut til å tillate en mer robust generalisering over de ukile attributtene i multifokale data.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green