Abstract: In a situation where a capturing device is capturing a first image of a scene comprising a display device displaying a second image, a salient idea is to send both the captured first image and the second image, being displayed by the display device to a processing device, for comparatively processing the first and the second image to determine a characteristic associated with the display device. Being able to process the first image (comprising a displayed second image) together with the original second image advantageously allows to determine various characteristics associated with the display device that altered the displayed second image within the first image, making it different from the initial second image. Characteristics associated with the display device are for example a specular reflection occurring on the display device in the scene and disturbing the capture of the scene.

Abstract: A plenoptic camera including a camera lens, a lenslet array having a plurality of microlenses and a photosensors array and having a plurality of photosensors. The camera lens has a spatial light modulator arranged in the aperture stop plane of the camera lens.

Abstract: A sequence of point clouds is encoded as a video by an encoder and transmitted to a decoder which retrieves the sequence of point clouds. Visible points of a point cloud are iteratively projected on projection maps according to at least two centers of projection, to determine a patch data item lists. One of the centers of projection is selected and corresponding image patches are generated and packed into a picture. Pictures and associated patch data item list are encoded in a stream. The decoding method decodes pictures and associated patch data item lists. Pixels of image patches comprised in pictures are un-projected according to data stored in associated patches. The methods have the advantage of encoding every point of point clouds in a manner avoiding artifacts and allowing decoding at video frame rate.

Abstract: 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 (23). Real-world information (22) is captured in the real 3D scene and the scenario is executed at runtime (14) in presence of the real-world constraints. When the real-world constraints are not identified (12) from the real-world information, a transformation of the representation of the real 3D scene to a virtually adapted 3D scene is carried out (13) 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.

Abstract: In a staggercasting system, a receiver estimates a delivery time of a packet from a main stream and, if the packet from the main stream is not received at the estimated delivery time, the receiver substitutes a corresponding packet from the stagger stream. As a result, a loss can be detected quicker since the receiver does not have to wait until detection of a missing sequence number and, therefore, the receiver can accommodate the time of presentation such that the user does not suffer a loss in quality of service.

Abstract: The present disclosure concerns a method for processing a light field image comprising a set of image views.

Abstract: A sequence of point clouds is encoded as a video by an encoder and transmitted to a decoder which retrieves the sequence of point clouds. Visible points of a point cloud are iteratively projected on a projection map to determine a patch data item list. Image patches are generated and packed into a picture. Pictures and associated patch data item list are encoded in a stream. The decoding method decodes pictures and associated patch data item lists. Pixels of image patches comprised in pictures are un-projected according to data stored in associated patches. The methods have the advantage of encoding every point of point clouds in a manner avoiding artifacts and allowing decoding at video frame rate.

Abstract: A method and apparatus for providing remote control of content rendered by a set top box is described including transmitting a state request message by a user to the set top box via a server, receiving a state reply message by the user from the set top box via the server, determining by the user if the user needs to control the set top box responsive to information in the state reply message and transmitting a remote control command to the set top box via the server. Also described are a method and apparatus including recording information of events by the set top box, receiving a state request message via a server, generating a state reply message including the recorded information, transmitting the state reply message via the server, receiving a remote control command via the server and performing an action specified by the remote control command.

Abstract: A method and an apparatus for processing a 3D scene are disclosed. A reference image representative of an image of the scene captured under ambient lighting is determined. A texture-free map is determined from said reference image and an input image of the scene. The 3D scene is then processed using the determined texture-free map.

Abstract: The disclosure relates to a method for processing at least first and second audiovisual signals in a rendering system. Each of the first and second audiovisual signals include a video content and an audio content. The rendering system having a main display, an auxiliary display and a first audio output. The method includes: displaying the video content of the first audiovisual signal on the main display and the video content of the second audiovisual signal on the auxiliary display and playing the audio content of the first audiovisual signal on the first audio output, detecting an event in the audio content of the second audiovisual signal, and upon detection of the event, playing the audio content of the second audiovisual signal, instead of the audio content of the first audiovisual signal.

Abstract: The present disclosure relates to methods, apparatus or systems for determining a final pose (21) of a rendering device. An initial pose is associated with the rendering device. A module (25) determines an intermediate pose (26) according to data from absolute pose sensors (23) and/or differential pose sensors (22). A module (27) determines the final pose (21) according to, first, a difference between the intermediate pose (26) and the initial pose information, second, the data from differential pose sensors (22), and third an evaluation of the visual perception of movements for current images (24) displayed on the rendering device.

Abstract: A network equipment includes at least one access point interface and is configured to operate a plurality of network functions. The network equipment is configured to be in communication with at least one terminal belonging to a network. The network equipment further includes at least one classifier configured to modify a data frame, the data frame coming from the at least one terminal and being received by the access point interface. The data frame may be modified by replacing an address of the data frame with processing information.

Abstract: The disclosure concerns a method for filtering spurious pixels in a depth-map. It is important to filter a depth-map to remove the spurious pixels. One issue when filtering spurious pixels, is to remove them while preserving the boundaries of the real details of the depth-map. A known approach to filter spurious pixels is to use a bi-lateral filter. However, the bi-lateral filter is not efficient to remove the spurious pixels. The proposed solution enables to remove spurious pixels in a depth-map while preserving the sharp edges of the depth-map and smoothing faint details or noise.

Abstract: A television and a home cinema device work together in various embodiments to render an audio signal including at least a left channel, a right channel and a center channel. The left and right channels are rendered by left and right speakers coupled to the home cinema device, while the center channel is rendered by the left and right speakers of the television. The television can receive the audio signal, decode and render the center channel and send the audio, possibly reencoded left and right channels, to the home cinema device. The television can also send the audio to the home cinema device the returns the, possibly reencoded, center channel for rendering on the television. Alternatively, the home cinema device can receive the audio signal and provide the possibly reencoded center channel to the television. In an alternative, the center channel can be rendered by a soundbar coupled to the television.

Abstract: A particular implementation accesses a disparity value for a particular location in a picture, the disparity value indicating disparity with respect to a particular resolution. The particular implementation modifies the accessed disparity value based on multiple resolutions to produce a modified disparity value. Another implementation accesses a disparity value for a particular location in a picture, the picture having a particular resolution, and the disparity value indicating disparity with respect to another resolution that is different from the particular resolution and that is based on multiple resolutions. A further implementation modifies the accessed disparity value to produce a modified disparity value indicating disparity with respect to the particular resolution.

Abstract: A plenoptic camera having a camera lens, a microlens array and a photosensors array is described. An optical device is arranged before the camera lens according to a light-traveling direction of a light flux entering the plenoptic camera. The optical device includes a first layer that is controllable between a transmissive mode and a scattering mode and at least one light source arranged at a border of the optical device. A method for controlling the plenoptic camera is also described.

Abstract: A method to be implemented in a first communication device adapted to be powered via a first wired communication interface and to be configured as a master or as a slave device when connected with a second device via the first wired communication interface is described. The method includes, when the first communication device is connected to a second device via the first communication interface and is configured as a master device, with respect to the second device, obtaining an identifier of the second device and operating in a first operating mode, compatible with a first power consumption, or in a second operating mode, leading to a second power consumption higher than the first power consumption, depending of the obtained identifier. The corresponding device, system, computer readable program product and computer readable storage medium are also described.

Abstract: A method for managing video data in a storage system (10), the video data comprising frames, and a storage system (10) configured to perform the method are described. The storage system (10) comprises a first input (11) configured to receive (1) one or more frames for storage. A storage more frames unit (12) stores (2) the one or more frames, whereas a unique identifier generator (13) associates (3) a unique identifier to each of the one or more frames. The storage system (10) further comprises a processor (14) configured to generate (4) a modified frame by processing one or more frames or to receive a modified frame generated externally. The unique identifier generator (13) associates (5) a derived unique identifier to such a modified frame, which comprises references to the unique identifiers of the one or more processed frames.

Abstract: An access point receives from a client a first nonce and a first cryptographic hash for the first nonce, the first cryptographic hash calculated using a first key derived from a second key, the second key input on the client or derived from a passphrase input on the client, derives first keys from each of a stored primary input and at least one stored secondary input valid at the deriving, the stored primary input and the at least one stored secondary input each being one of a second key and a passphrase, verifies the cryptographic hash using each derived first key to find a derived first key that checks the first cryptographic hash, generates a third key and a second cryptographic hash using the derived first key that checks the first cryptographic hash, and sends the third key and the second cryptographic hash to the client.

Abstract: A method for navigating through media content is described. The method (600) includes receiving (610) a media content stream, generating (620) a plurality of images associated with the media content stream after it is received, retrieving (630) information for a future media content stream, and providing (650) the information for the future media content stream along with the plurality of images for display along with the media content stream. The apparatus (300) includes an input signal receiver (302) that receives a media content stream, a video processor (310) that generates a plurality of images associated with the media content stream after it is received, a controller (314) retrieving information for a future media content stream that is available after the media content stream is received, and a display interface (315) providing the information for the future media content stream along with the plurality of images associated with the media content stream for display along with the media content stream.