Michael Wray

PhD Student . University of Bristol . michael (dot) wray (at) bristol (dot) ac (dot) uk

My research focuses on action recognition and understanding its links with language.


Presentation at BMVA Symposium

Presentation of Towards an Unequivocal Representation of Actions

I presented a talk on Towards an Unequivocal Representation of Actions at BMVA Symposium: Robotics meets Semantics: Enabling Human-Level Understanding in Robots on 18th July. Slides.

June 2018

EPIC Kitchens Demo at CVPR 2018

Demo - Wednesday AM Booth 7

Myself along with two other authors demoed EPIC at CVPR 2018.

June 2018

Poster at BIVU2018

Towards an Unequivocal Representation of Actions

I presented a poster of Towards an Unequivocal Representation of Actions at the Brave New Ideas for Video Understanding workshop at CVPR2018.

May 2018

EPIC Kitchens

Largest Egocentric Dataset

We have just released the largest egocentric dataset for action and object recognition. More info can be found here.

April 2018

New Paper on ArXiv

Towards an Unequivocal Representation of Actions

We have released a shortform version of Towards an Unequivocal Representation of Actions on ArXiv here.

April 2018

Paper accepted at ICCV 2017

Trespassing the boundaries: Labeling Temporal Bounds for Object Interactions in Egocentric Video

Davide Moltisanti presented the poster for the paper in ICCV2017.

October 2017

Paper accepted at EPIC Workshop

SEMBED: Semantic Embedding of Egocentric Action Videos

Our paper SEMBED was presented at the first EPIC workshop during ECCV2016.

October 2016


Towards an Unequivocal Representation of Actions

This work introduces verb-only representations for actions and interactions; the problem of describing similar motions (e.g. 'open door', 'open cupboard'), and distinguish differing ones (e.g. 'open door' vs 'open bottle') using verb-only labels. Current approaches for action recognition neglect legitimate semantic ambiguities and class overlaps between verbs, relying on the objects to disambiguate interactions.

May 2018

Scaling Egocentric Vision: The EPIC-KITCHENS Dataset

First-person vision is gaining interest as it offers a unique viewpoint on people's interaction with objects, their attention, and even intention. However, progress in this challenging domain has been relatively slow due to the lack of sufficiently large datasets. In this paper, we introduce EPIC-KITCHENS, a large-scale egocentric video benchmark recorded by 32 participants in their native kitchen environments. Our videos depict nonscripted daily activities: we simply asked each participant to start recording every time they entered their kitchen

April 2018

Trespassing the Boundaries: Labeling Temporal Bounds for Object Interactions in Egocentric Video

Manual annotations of temporal bounds for object interactions (i.e. start and end times) are typical training input to recognition, localization and detection algorithms. For three publicly available egocentric datasets, we uncover inconsistencies in ground truth temporal bounds within and across annotators and datasets. We systematically assess the robustness of state-of-the-art approaches to changes in labeled temporal bounds, for object interaction recognition.

October 2017

sembed: semantic embedding of egocentric action videos

ECCVW 2016 - pdf

we present sembed, an approach for embedding an egocentric object interaction video in a semantic-visual graph to estimate the probability distribution over its potential semantic labels.

october 2016

The Cage: Towards a 6-DoF Remote Control with Force Feedback for UAV Interaction.

Extended Abstract CHI 2015

Unmanned Aerial Vehicles (UAVs) require complex control and significant experience for piloting. While these devices continue to improve, there is, as yet, no device that affords six degrees of freedom (6-DoF) control and directional haptic feedback. We present The Cage, a 6-DoF controller for piloting an unmanned aerial vehicle (UAV).

April 2015

Education and Experience

University of Bristol

PhD in Computer Vision


September 2015 - Current


Router Testing/Development

3 Month Internship

June 2014 - August 2014

University of Bristol

Master of Engineering
Computer Science

First Class

September 2011 - May 2015


Whilst not working on completing my PhD I enjoy reading - primarily Science Fiction and Fantasy. Below are few books/series I would recommend:

  • Wheel of Time - Robert Jordan/Brandon Sanderson.
  • Lightbringer - Brent Weeks.
  • Rendezvous with Rama - Arthur C. Clarke.