Towards the creation of appealing realistic virtual humans (Unity)

Inria
February 28, 2023
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2023-05675 - Towards the creation of appealing realistic virtual humans (Unity)

Level of qualifications required : Graduate degree or equivalent

Fonction : Internship Research

About the research centre or Inria department

The Inria Rennes - Bretagne Atlantique Centre is one of Inria's eight centres and has more than thirty research teams. The Inria Center is a major and recognized player in the field of digital sciences. It is at the heart of a rich R&D and innovation ecosystem: highly innovative PMEs, large industrial groups, competitiveness clusters, research and higher education players, laboratories of excellence, technological research institute, etc.

Context

Towards the creation of appealing realistic virtual humans (Unity)

Type of offer: Masters/Research Masters

Location: Rennes

Research topic: Perception, animation, virtual reality

Project: VIRTUS

Contact person: Katja Zibrek, Yuliya Patotskaya, Ludovic Hoyet

Subject

In recent years, we have seen a significant development in creating digital doubles and characters who closely resemble real humans 1. Creating believable behaviour and animation for these virtual humans has remained challenging, especially when applied to photorealistic characters 2. In this research project, we will be exploring the animation qualities of photorealistic virtual humans. It has been shown that character movement can be perceived as attractive, significantly affecting users' behaviour towards them 3. Creating appealing characters and their impact on the users will be the central subject of our study.

The objective of this research is to identify which aspects of the character animation affect the user's perception and interaction with the character (agent). First, the intern will work with motion caption from real person and retarget them on virtual characters. Furthermore, we would like to explore the techniques to edit the animations to manipulate the style of motion45 for realistic characters1.

The design will be validated by conducting perceptual studies, particularly by harnessing the power of VR which allows the measure of behavioural responses of the users to virtual people, while our findings will be used to advance further research and provide design guidelines for a wider spread application for entertainment, training and rehabilitation.

Tasks

The intern will first familiarise with the equipment for animating a virtual human: state-of-the-art facial and body capture procedures and technology to create the virtual characters. Based on the research interest of the intern, different tasks will be available during this internship:

  • Environment and agent creation in VR
  • Animation techniques
  • Motion capture data retargeting on virtual characters
  • Designing a perceptual experiment in VR
  • The intern will work closely with the lead researchers to complete the selected tasks.

    Requirements

    The candidate should have:

  • Sufficient programming background (C# preferred)
  • Interest in character animation and game (virtual reality) development
  • Previous knowledge of Unity is a preferred
  • Basic knowledge of animation editing tools (e.g., Maya)
  • Good level of English is required.
  • Contact:

    Katja Zibrek (katja.zibrek@inria.fr), Yuliya Patotskaya (yuliya.patotskaya@inria.fr) and Ludovic Hoyet (ludovic.hoyet@inria.fr), Inria, VirtUs team.

    Literature:

    1 Character Creator: https: // charactercreator.org/

    2 McDonnell, R., Breidt, M., & Bülthoff, H. H. (2012). Render me real?: investigating the effect of render style on the perception of animated virtual humans. ACM Transactions on Graphics (TOG), 31(4), 91

    3 Zibrek, K., Niay, B., Olivier, A. H., Hoyet, L., Pettre, J., & McDonnell, R. (2020). The effect of gender and attractiveness of motion on proximity in virtual reality. ACM Transactions on Applied Perception (TAP), 17(4), 1-15.

    4 I. Mason, S. Starke, H. Zhang, H. Bilen, T. Komura(2018), Few-shot Learning of Homogeneous Human Locomotion Styles

    5 Daniel Holden and Jun Saito and Taku Komura (2016) A deep learning framework for character motion synthesis and editing, ACM Transactions on Graphics (TOG)

    6 Kfir Aberman, Yijia Weng, Dani Lischinski, Daniel Cohen-Or, Baoquan Chen.

    Motion Style Transfer from Video to Animation, ACM Transactions on Graphics (SIGGRAPH 2020).

    Skills

    Technical skills and level required :

    Languages :

    Relational skills :

    Other valued appreciated :

    General Information
  • Theme/Domain : Data and Knowledge Representation and Processing Data production, processing, analysis (BAP D)

  • Town/city : Rennes

  • Inria Center : Centre Inria de l'Université de Rennes
  • Starting date : 2023-03-01
  • Duration of contract : 7 months
  • Deadline to apply : 2023-02-28
  • Contacts
  • Inria Team : VIRTUS
  • Recruiter : Patotskaya Yuliya / yuliya.patotskaya@inria.fr
  • About Inria

    Inria is the French national research institute dedicated to digital science and technology. It employs 2,600 people. Its 200 agile project teams, generally run jointly with academic partners, include more than 3,500 scientists and engineers working to meet the challenges of digital technology, often at the interface with other disciplines. The Institute also employs numerous talents in over forty different professions. 900 research support staff contribute to the preparation and development of scientific and entrepreneurial projects that have a worldwide impact.

    Instruction to apply

    Please submit online : your resume, cover letter and letters of recommendation eventually

    For more information, please contact yuliya.patotskaya@inria.fr

    Defence Security : This position is likely to be situated in a restricted area (ZRR), as defined in Decree No. 2011-1425 relating to the protection of national scientific and technical potential (PPST).Authorisation to enter an area is granted by the director of the unit, following a favourable Ministerial decision, as defined in the decree of 3 July 2012 relating to the PPST. An unfavourable Ministerial decision in respect of a position situated in a ZRR would result in the cancellation of the appointment.

    Recruitment Policy : As part of its diversity policy, all Inria positions are accessible to people with disabilities.

    Warning : you must enter your e-mail address in order to save your application to Inria. Applications must be submitted online on the Inria website. Processing of applications sent from other channels is not guaranteed.

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