Peter has been a member of programme committees for over 60 events, among which all major conferences in computer vision, image processing and pattern recognition. He was Program Chair of ICCV 2011 and RFIA 2012 and Area Chair for ECCV 2012 and 2006, ICCV 2009, CVPR 2011 and 2009, and ACCV 2010 and 2009. Peter was on the Editorial Board of IEEE Transactions on Pattern Analysis and Machine Intelligence, Image and Vision Computing Journal, Journal of Mathematical Imaging and Vision, Journal of Computer Science & Technology, IPSJ (Information Processing Society of Japan) Transactions on Computer Vision and Applications, and IJICC (International Journal on Intelligent Computing and Cybernetics). He was organization co-chair of the 2008 European Conference on Computer Vision and has organized workshops and given tutorials and invited lectures at several conferences.

His main research topics have been in Computer Vision, and specifically related to camera (self-)calibration, 3D reconstruction and motion estimation, both for traditional perspective cameras and omnidirectional sensors. In 2011, Peter joined the STEEP research team, which is working towards contributing to sustainable development in general, and on the use of integrated land-use and transportation models for urban areas, in particular. This new research program concerns aspects in numerical optimization, uncertainty and sensitivity analysis for dynamical systems, applied to econometric and simulation-based models.