Multi-target tracking in time-lapse video forensics. - Paul Koppen; Marcel Worring (MiFor@MM, 2009)

An intrinsic coordinate system for 3D face registration. - W. P. Koppen; Chi-Ho Chan; William J. Christmas; Josef Kittler (ICPR, 2012)

Backtracking: Retrospective multi-target tracking. - W. P. Koppen; Marcel Worring (Comput. Vis. Image Underst., 2012)

Learning 3D face shape features from local coherence. - Willem P. Koppen (2014)

Extending non-negative matrix factorisation to 3D registered data. - Willem P. Koppen; William J. Christmas; D. J. M. Crouch; Walter F. Bodmer; Josef Kittler (ICB, 2016)

A Multiresolution 3D Morphable Face Model and Fitting Framework. - Patrik Huber 001; Guosheng Hu; Jose Rafael Tena; Pouria Mortazavian; Willem P. Koppen; William J. Christmas; Matthias Rätsch; Josef Kittler (VISIGRAPP (4: VISAPP), 2016)

Evaluation of Dense 3D Reconstruction from 2D Face Images in the Wild. - Zhenhua Feng 001; Patrik Huber 001; Josef Kittler; Peter J. B. Hancock; Xiao-Jun Wu 001; Qijun Zhao; Paul Koppen; Matthias Rätsch (FG, 2018)

Conformal Mapping of a 3D Face Representation onto a 2D Image for CNN Based Face Recognition. - Josef Kittler; Paul Koppen; Philipp Kopp; Patrik Huber 001; Matthias Rätsch (ICB, 2018)

Gaussian mixture 3D morphable face model. - Willem P. Koppen; Zhenhua Feng 001; Josef Kittler; Muhammad Awais 001; William J. Christmas; Xiaojun Wu 001; He-Feng Yin (Pattern Recognit., 2018)