|Conference/Proceedings||Proceedings of the MediaEval 2013 Multimedia Benchmark Workshop|
|Editor||Martha Larson, Xavier Anguera, Timo Reuter, Gareth J.F. Jones, Bogdan Ionescu, Markus Schedl, Tomas Piatrik, Claudia Hauff, Mohammad Soleymani|
|Author(s)||Sebastian Schmiedeke, Pascal Kelm, and Thomas Sikora|
|Title||TUB @ MediaEval 2013 Visual Privacy Task: Reversible Scrambling with colour-preservative Characteristic|
|Abstract||This paper describes our participation in the Visual Privacy Task of MediaEval 2013, which aims to obscure human occurrence in image sequences.|
As a result the recorded person should be unrecognisable.
We use an approach which pseudo-randomly scrambles pixels within specified regions.
This technique is reversible and preserves the colour characteristic of each region.
So, colour-based approaches will still be able to automatically distinguish between differently dressed individuals.
The evaluations of our results show that the privacy aspect got a very high score in both objective and subjective metrics.
Our approach has a lack of intelligibility since it was measured by applying the Histogram of Oriented Gradients which might be fail on scrambled areas since edges are not preserved.
|Key words||multimedia analysis, multimedia application, Privacy, Privacy Protection, Video Analytic, Image Processing, Filtering|