Interdigital Ce Patent Holdings

Thomson Licensing

Interdigital Ce Patent Holdings, Sas

Interdigital Madison Patent Holdings, Sas

Matthieu Fradet

Anthony Laurent

Caroline Baillard

Philippe Robert

Pierrick Jouet

Vincent Alleaume

Didier Doyen

Cedric Thebault

Joan Llach Pinsach

Patrick Perez

Thierry Viellard

Tomas Enrique Crivelli

Pierre-Henri Conze

Cedric Penet

Alasdair Newson

Tomas Crivelli

Localization of a user device in a mixed reality environment in which the user device obtains at least one keyframe from a server, which can reside on the user device, displays at least one of the keyframes on a screen, captures by a camera an image of the environment, and obtains a localization result based on at least one feature of at least one keyframe and the image.

Device and method for device localization

A method of sharing and a method of presenting virtual content in a mixed reality scene rendered on at least two user devices having different viewing position and/or orientation onto the mixed reality scene and corresponding apparatus are described. At a first user device, a user is enabled to select a virtual content to be shared and a second user device with whom the virtual content is to be shared. Information related to the virtual content to be shared is provided, wherein the provided information comprises the 3D position of the virtual content to be shared. The information is received by the second user device and the shared virtual content is rendered with regard to the viewing position and/or orientation of the second user device onto the mixed reality scene.

Sharing virtual content in a mixed reality scene

A method for a placement of a virtual object of an augmented or mixed reality application in a real-world 3D environment, comprises: selecting (), at a runtime of the augmented or mixed reality application, one of a finite set of at least two candidate insertion areas predetermined in the real-world 3D environment for the placement of the virtual object in the real-world 3D environment, based on criteria combining, for each of the candidate insertion areas, relationships between each of: the real-world 3D environment, the virtual object considered with respect to a placement of that virtual object in that candidate insertion area, and a user position; and inserting () the virtual object in the selected candidate insertion area.

Method and device for a placement of a virtual object of an augmented or mixed reality application in a real-world 3D environment

Dynamic virtual content(s) to be superimposed to a representation of a real 3D scene complies with a scenario defined before run-time and involving real-world constraints (). Real-world information () is captured in there al 3D scene and the scenario is executed at runtime () in presence of there al-world constraints. When there al-world constraints are not identified () from there al-world information, a transformation of the representation of the real 3D scene to a virtually adapted 3D scene is carried out () before executing the scenario, so that the virtually adapted 3D scene fulfills those constraints, and the scenario is executed in the virtually adapted 3D scene replacing the real 3D scene instead of there al 3D scene. Application to mixed reality.

Device and method for generating dynamic virtual contents in mixed reality

Dynamic virtual content(s) to be superimposed to a representation of a real 3D scene complies with a scenario defined before runtime and involving real-world constraints (). Real-world information () is captured in the real 3D scene and the scenario is executed at runtime () in presence of the real-world constraints. When the real-world constraints are not identified () from the real-world information, a transformation of the representation of the real 3D scene to a virtually adapted 3D scene is carried out () before executing the scenario, so that the virtually adapted 3D scene fulfills those constraints, and the scenario is executed in the virtually adapted 3D scene replacing the real 3D scene instead of the real 3D scene. Application to mixed reality.

In order to blur a virtual object in a video in real time as the video is acquired by a device capturing a real scene, a salient idea is used which estimates an apparent motion vector between two successive images, being captured at two successive device poses, in which the apparent motion vector estimation is based on a motion of the device. The successive images are then filtered based on the estimated apparent motion vector.

Method and device for blurring a virtual object in a video

A method of selection of an object in an environment including a plurality of real and/or virtual objects is described. The environment being displayed to a user through a display device includes an assignment of a gesture path to each object of the plurality of objects and the gesture path includes a series of gestures to be performed by the user to select the object.

Selection of an object in an augmented or virtual reality environment

A method for processing a current image of an image sequence is disclosed. According to the invention, the method includes:

Method for processing a current image of an image sequence, and corresponding computer program and processing device

A method and device for rendering a scene including one or more real objects is described. A virtual object is associated with each real object, a virtual object associated with a real object corresponding to a virtual replica of this real object. The virtual replica is used to render a transformation that may be applied to the real object when for example hit by a virtual object, the virtual object then replacing the corresponding real object within the scene. To bring realism to the scene, texture information obtained from image(s) of the real object(s) is used to texture the visible part(s) of the transformed virtual object(s). The texture information is selected in the images by using information on the visibility of the parts of the real object(s) that correspond to the visible parts of the transformed virtual object(s).

Method and device for rendering an image of a scene comprising a real object and a virtual replica of the real object

The present disclosure is directed to a method and a device for dealiasing borders in a 3D interpolated view, the interpolated view comprising at least foreground pixels with foreground video in formation and background pixels with background video information. The method comprises the step of detecting, in an interpolated disparity map, associated to the 3D interpolated view, an aliased border between the foreground pixels with a foreground disparity value and the background pixels with a background disparity value, the aliased border delimiting an inner aliased contour formed by foreground pixels and an outer aliased contour formed by background pixel, the aliased border having the form of a stair line; determining a weighting/dealiasing coefficient for each pixel of the outer contour said coefficient corresponding to the part of the pixel area included in the virtual right triangle defined by the two sides of each stair line to the area of the pixel; calculating video information for each pixel of the outer contour in combining the background video information and the foreground video information in a proportion defined by the determined weighting/dealiasing coefficient and replacing video information for each pixel of the outer contour by the calculated video information.

Dealiasing method and device for 3D view synthesis

A method and an apparatus for processing occlusions in motion estimation are described. For processing an occlusion in a forward motion field of a second frame relative to a first frame the forward motion field of the second frame relative to the first frame is determined with a motion estimator. Then an area in the second frame that is occluded in the first frame is identified with an occlusion identifier. Finally, a motion corrector determines a corrected forward motion field by filling the forward motion field in the identified area in the second frame using motion vectors of a previous backward motion field of the second frame relative to a previous third frame.

Method and apparatus for processing occlusions in motion estimation

The invention relates to a method for processing an audiovisual content aiming to censure scenes called sensitive scenes, for example scenes comprising sex and/or violence, in the audiovisual content and a device implementing the method. According to the invention, the display of a sensitive scene of the audiovisual content is replaced, during the temporal interval intended for the display of said sensitive segment, by the reproduction of audio-description data of the audio-description signal that is usually intended for blind or visually impaired persons.

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Chanteloup, France

Matthieu Fradet