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Results for Immersive/AR/VR/MR




Results for Immersive/AR/VR/MR

Metagrating solutions for full color single-plate waveguide combiner
RESEARCH PAPER / Feb 2022 / Immersive/AR/VR/MR, Image Processing
In this work we propose several full-color metagrating solutions for single waveguide-based Augmented and Virtual Reality near-eye display systems. The presented solutions are based on a combination of reflective and/or transmissive diffraction gratings inside or outside a waveguide. The proposed designs have high intensity across a wide angular range. Applying...
Study on Automatic 3D Facial Caricaturization: from rules to Deep Learning
RESEARCH PAPER / Jan 2022 / Computer Graphics, Immersive/AR/VR/MR
Facial caricature is the art of drawing faces in an exaggerated way to convey emotions such as humor or sarcasm. Automatic caricaturization has been explored both in the 2D and 3D domain. In this paper, we present the first study of facial mesh caricaturization techniques. In addition to a user...
Over-wavelength pitch sized diffraction gratings for augmented reality applications
RESEARCH PAPER / Jan 2022 / Immersive/AR/VR/MR, Optics, Light Field
Waveguide based optical combiners for Augmented Reality (AR) glasses are integrating several Surface Relief Gratings (SRG) whose pitch sizes can be as small as 200 nm for the blue wavelength. All SRG components exploit the first diffraction order to couple in and out or to deviate the light. We present...
Towards Mobile Diminished Reality
RESEARCH PAPER / Oct 2018 / Immersive/AR/VR/MR, Computer Vision
We present a diminished reality application running live on consumer mobile devices. In our pre-observation-based approach, the clean 3D scene, free of undesired objects, is scanned beforehand and reconstructed as a high resolution textured 3D model. At runtime, objects added in a region of interest are efficiently removed by projecting...
Haptic Material: A Holistic Approach for Haptic Texture Mapping
RESEARCH PAPER / Jun 2018 / Immersive/AR/VR/MR, Haptics, Human Machine Interface
In this paper, we propose a new format for haptic texture mapping which is not dependent on the haptic rendering setup hardware. Our “haptic material” format encodes ten elementary haptic features in dedicated maps, similarly to “materials” used in computer graphics. These ten different features enable the expression of compliance,...
A Tangible Surface for Digital Sculpting in Virtual Environments
RESEARCH PAPER / Jun 2018 / Immersive/AR/VR/MR, Haptics, Human Machine Interface
With the growth of virtual reality setups, digital sculpting tools become more and more immersive. It is now possible to create a piece of art within a virtual environment, directly with the controllers. However, these devices do not allow to touch the virtual material as a sculptor would do. To...
A Preliminary Investigation into the Impact of Training for Example-Based Facial Blendshape Creation
RESEARCH PAPER / May 2018 / Immersive/AR/VR/MR, Computer Graphics
Our work is a perceptual study into the effects of training poses on the Example-Based Facial Rigging (EBFR) method. We analyse the output of EBFR given a set of training poses to see how well the results reproduced our ground truth actor scans compared to a Deformation Transfer approach. While...
Photometric Registration Using Specular Reflections and Application to Augmented Reality
RESEARCH PAPER / Apr 2018 / Immersive/AR/VR/MR, Computer Vision
Photometric registration consists in blending real and virtual scenes in a visually coherent way. To achieve this goal, both reflectance and illumination properties must be estimated. These estimates are then used, within a rendering pipeline, to virtually simulate the real lighting's interaction with the scene. In this paper, we are...
Directing Cinematopgraphic Drones
RESEARCH PAPER / Apr 2018 / Immersive/AR/VR/MR, Production Workflow
Quadrotor drones equipped with high quality cameras have rapidly raised as novel, cheap and stable devices for filmmakers. While professional drone pilots can create aesthetically pleasing videos in short time, the smooth -- and cinematographic -- control of a camera drone remains challenging for most users, despite recent tools that...
VR Color Grading using Key Views
RESEARCH PAPER / Dec 2017 / Immersive/AR/VR/MR, Color Management, Production Workflow
Color grading is a crucial step in film post-production for defining the creative intent and giving a particular look and feel to the content. In the context of VR, no adapted solutions exist yet for color grading 360° imagery, leading to cumbersome work-arounds and costing precious production time. To enable...
Color Management for VR Production
RESEARCH PAPER / Dec 2017 / Immersive/AR/VR/MR, Color Management, Production Workflow
Virtual reality offers a new way of telling stories and engaging audiences. To create appealing content for this new imaging modality, content production and post-production workflows need to be adapted or completely rethought. One key aspect for ensuring image quality and preservation of the director's intent throughout the production workflow...
Light Fields pipeline for Immersive Video Experiences
RESEARCH PAPER / Nov 2017 / Immersive/AR/VR/MR, Light field, Volumetric Imaging
Presentation of Light Fields pipeline for Immersive Video Experiences
MR TV Mozaik: A New Mixed Reality Interactive TV Experience
RESEARCH PAPER / Oct 2017 / Immersive/AR/VR/MR, Human Machine Interface
Technicolor has been investigating how Mixed Reality technology could impact the future of home entertainment. We have designed and implemented a system to extend a standard TV experience with AR content, using a consumer tablet or a headset. A virtual TV mosaic is displayed around the TV screen and used...
Illumination Estimation using Cast Shadows for Realistic Augmented Reality Applications
RESEARCH PAPER / Oct 2017 / Immersive/AR/VR/MR, Computer Vision
Augmented Reality (AR) scenarios aim to provide realistic blending between real world and virtual objects. A key factor for realistic AR is thus a correct illumination simulation. This consists in estimating the characteristics of real light sources and use them to model virtual lighting. In this paper, we briefly introduce...
Automated Light Composting with Rendered Images
RESEARCH PAPER / Sep 2017 / Immersive/AR/VR/MR, Computer Vision
Lighting is a key element in photography. Professional photographers often work with complex lighting setups to directly capture an image close to the targeted one. Some photographers reversed this traditional workflow. Indeed, they capture the scene under several lighting conditions, then combine the captured images to get the expected one....
TOWARD THE REALIZATION OF SIX DEGREES-OF-FREEDOM WITH COMPRESSED LIGHT FIELDS
RESEARCH PAPER / Jul 2017 / Immersive/AR/VR/MR, Volumetric Imaging
360° video, supporting the ability to present views consistent with the rotation of the viewer's head along three axes (roll, pitch, yaw) is the current approach for creation of immersive video experiences. Nevertheless, a more fully natural, photorealistic experience - with support of visual cues that facilitate coherent psycho-visual sensory...
Real-time embodiment for omnidirectional videos
RESEARCH PAPER / Jul 2017 / Immersive/AR/VR/MR, Human Machine Interface
This paper investigates the role of the embodiment in an immersive video experience. A system allowing to play back omnidirectional videos enhanced with real-time 3D content is presented. It enables the user to be embodied in an avatar and to interact with 3D objects added to the video. A user...
Light Fields for Immersive Experiences
RESEARCH PAPER / May 2017 / Immersive/AR/VR/MR, Light field, Volumetric Imaging
Attention guidance for immersive video content in head-mounted displays
RESEARCH PAPER / Mar 2017 / Immersive/AR/VR/MR, Human Machine Interface
Immersive videos allow users to freely explore 4 π steradian scenes within head-mounted displays (HMD), leading to a strong feeling of immersion. However users may miss important elements of the narrative if not facing them. Hence, we propose four visual effects to guide the user's attention. After an informal pilot...
Analytic Approximations for Real-time Area-Light Shading
RESEARCH PAPER / Jan 2017 / Computer Graphics, Immersive/AR/VR/MR
We introduce analytic approximations for accurate real-time rendering of surfaces lit by non-occluded area light sources. Our solution leverages the Irradiance Tensors developed by Arvo for the shading of Phong surfaces lit by a polygonal light source. Using a reformulation of the 1D boundary edge integral, we develop a general...
Reflectance and Illumination Estimation for Realistic Augmentations of Real Scenes
RESEARCH PAPER / Sep 2016 / Immersive/AR/VR/MR, Computer Vision
The acquisition of surface material properties and lighting conditions is a fundamental step for photo-realistic Augmented Reality (AR). In this paper, we present a new method for the estimation of diffuse and specular reflectance properties of indoor real static scenes. Using an RGB-D sensor, we further estimate the 3D position...
2D Input for Virtual Reality Enclosures with Magnetic Field Sensing
RESEARCH PAPER / Sep 2016 / IoT, Immersive/AR/VR/MR
Virtual Reality enclosures are inexpensive devices that create a virtual reality experience using a mobile phone. For example, Google Cardboard lets a user put their phone inside the device and is made from cardboard, some simple lens and a magnet. Because the phone is encased, there is no way to...
Exploring the Design Space of Touch-based Vibrotactile Interactions for Smartwatches
RESEARCH PAPER / Sep 2016 / IoT, Immersive/AR/VR/MR
Despite the rapid growth of wearable and mobile devices and associated availability of vibrotactile (VT) actuators, the design space of VT applications has remained primarily limited to event-based VT notifications. While useful in some cases, these notifications can be disruptive and cognitively-demanding. Further, the lack of perceptually salient VT sensations...
Cache Friendly Micro-Jittering
RESEARCH PAPER / Jul 2016 / Computer Graphics, Immersive/AR/VR/MR
Monte-Carlo integration techniques for global illumination are popular on GPUs thanks to their massive parallel architecture, but efficient implementation remains challenging. The use of randomly decorrelated low-discrepancy sequences in the path-tracing algorithm allows faster visual convergence. However, the parallel tracing of incoherent rays often results in poor memory cache utilization,...
Introducing Basic Principles of Haptic Cinematography Editing
RESEARCH PAPER / Jul 2016 / Immersive/AR/VR/MR, Haptics, Human Machine Interface
Adding the sense of touch to hearing and seeing would be necessary for a true immersive experience. This is the promise of the growing "4D-cinema" based on motion platforms and others sensory effects (water spray, wind, scent, etc.). Touch provides a new dimension for filmmakers and leads to a new...
Generic drone control platform for autonomous capture of cinema scenes
RESEARCH PAPER / Jun 2016 / Immersive/AR/VR/MR, Production Workflow
The movie industry has been using Unmanned Aerial Vehicles as a new tool to produce more and more complex and aesthetic camera shots. However, the shooting process currently rely on manual control of the drones which makes it difficult and sometimes inconvenient to work with. In this paper we address...
Contact Visualization
RESEARCH PAPER / May 2016 / Computer Graphics, Immersive/AR/VR/MR
We present in this paper a production-oriented technique designed to visualize contact in real-time between 3D objects. The motivation of this work is to provide integrated tools in the production workflow that help artists setting-up scenes and assets without undesired floating objects or inter-penetrations. Such issues can occur easily and...
Automated Cinematography with Unmanned Aerial Vehicles
RESEARCH PAPER / May 2016 / Immersive/AR/VR/MR, Production Workflow
The rise of Unmanned Aerial Vehicles and their increasing use in the cinema industry calls for the creation of dedicated tools. Though there is a range of techniques to automatically control drones for a variety of applications, none have considered the problem of producing cinematographic camera motion in real-time for...
Extrafoveal Video Extension for an Immersive Viewing Experience
RESEARCH PAPER / Mar 2016 / Immersive/AR/VR/MR, Human Machine Interface
Between the recent popularity of virtual reality (VR) and the development of 3D, immersion has become an integral part of entertainment concepts. Head-mounted Display (HMD) devices are often used to afford users a feeling of immersion in the environment. Another technique is to project additional material surrounding the viewer, as...

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