Automatic detection of images containing nudity : Image detection using artificial neural networks and statistical methods

Visa enkel post
dc.contributor.authorCarlsson, Andreas
dc.contributor.authorEriksson, Andreas
dc.contributor.authorIsik, Mikael
dc.contributor.departmentChalmers tekniska högskola / Institutionen för tillämpad informationsteknologi (Chalmers)sv
dc.contributor.departmentChalmers University of Technology / Department of Applied Information Technology (Chalmers)en
dc.date.accessioned2019-07-03T12:12:09Z
dc.date.available2019-07-03T12:12:09Z
dc.date.issued2008
dc.description.abstractThis thesis discusses the possibilities of detecting images containing nudity using computer algorithms. We are only focusing on sexually explicit images. Our approach is to extract features such as skin, faces and regions, which can be used to classify images. We have investigated the advantages of the two color spaces RGB and IHLS when detecting skin. The difference in performance between the two, are illustrated in ROC graphs. The technology used is artificial neural networks, statistical methods and advanced image processing. Artificial neural networks are used for skin pixel segmentation, face detection, and image classification. Gaussian mixture models have been tested, but was too computationally heavy and was also outperformed by artificial neural networks. The separate parts performs well, but our approach using an artificial neural network with features as input does not perform as well as expected in its current state, and needs some modifications, which are proposed in the section future work. The research problem was proposed by NetClean Technologies Sweden AB.
dc.identifier.urihttps://hdl.handle.net/20.500.12380/76159
dc.language.isoeng
dc.relation.ispartofseriesReport - IT University of Göteborg, Chalmers University of Technology and the University of Göteborg : 2008:083
dc.setspec.uppsokHumanitiesTheology
dc.subjectInformation Technology
dc.subjectInformationsteknik
dc.titleAutomatic detection of images containing nudity : Image detection using artificial neural networks and statistical methods
dc.type.degreeExamensarbete för masterexamensv
dc.type.degreeMaster Thesisen
dc.type.uppsokH
Ladda ner
Original bundle
Visar 1 - 1 av 1
Bild (thumbnail)
Namn:
76159.pdf
Storlek:
2.11 MB
Format:
Adobe Portable Document Format
Beskrivning:
Fulltext
Ladda ner
Samling
Examensarbeten för masterexamen