Publications and Patents

3D Multi-bodies: Fitting Sets of Plausible 3D Human Models to Ambiguous Image Data (NeurIPS 2020, Spotlight - Top 3%)

Benjamin Biggs, Sébastien Ehrhadt, Hanbyul Joo, Benjamin Graham, Andrea Vedaldi and David Novotny

We tackle the problem of obtaining dense 3D human reconstructions from single and partially occluded views. In such cases, the visual evidence is usually insufficient to identify a 3D reconstruction uniquely, so we recover a set of plausible and reconstructions, consistent with the input image. We train using a best-of-M loss, to which we add flexibility with a novel quantization scheme based on normalizing flows.

Who Left the Dogs Out? 3D Animal Reconstruction with Expectation Maximization in the Loop (ECCV 2020)

Benjamin Biggs, Oliver Boyne, James Charles, Andrew Fitzgibbon and Roberto Cipolla

We introduce a fully automatic, end-to-end system for 3D dog reconstruction trained using only weak 2D supervision. We use SMBLD, a new 3D deformable template model which includes a detailed shape prior learnt training using expectation maximization. We also release StanfordExtra: the largest dataset of 2D keypoints and segmentations for an animal category.

Creatures Great and SMAL: Recovering the shape and motion of animals from video (ACCV 2018, Oral - Top 5%)

Benjamin Biggs, Thomas Roddick, Andrew Fitzgibbon and Roberto Cipolla

A system to recover the 3D shape and motion of a wide variety of quadruped animals from video. We overcome the limited availability of animal motion capture data and ensure generalizability to real-world sequences by training on synthetic silhouettes. We apply our method on manually-segmented and automatically-segmented monocular animal videos and require no other form of user intervention.

Kinect Gowning Application

Benjamin Biggs, Patrick Hyett and Abhir Bhalerao

Computer vision application for verifying regulatory gowning procedures in collaboration with GlaxoSmithKline. Won departmental award for best third year dissertation at the University of Warwick.

Other Research

RodentNet

Benjamin Biggs, Andrew Fitzgibbon and Roberto Cipolla

Behaviour and key point predictions at ~15fps by a deep learning architecture we refer to as RodentNet. Results shown on validation sequences from the SCORHE dataset.