摘要:
A method and device for encoding data representative of a 3D representation of a scene into a bitstream, the 3D representation being according to a range of points of view. To reach that aim, at least a depth map associated with at least a part of the 3D representation is generated according to at least a parameter representative of at least a two-dimensional parametrization associated with the at least a part and data associated with at least a point comprised in the at least a part, the at least a two-dimensional parametrization being responsive to geometric information associated with the at least a point and to pose information associated with the range of points of view. At least a texture map associated with the at least a part is generated according to the at least a parameter and data associated with the at least a point comprised in the at least a part. A first information representative of point density of points comprised in at least a part of the at least a part of the 3D representation is obtained. The at least a depth map is encoded into a first syntax element of the bitstream, the at least a texture map into a second syntax element of the bitstream, the at least a parameter into a third syntax element of the bitstream, the first information into a fourth syntax element of the bitstream and a second information representative of a mapping between the at least a two-dimensional parametrization and corresponding at least a depth map and at least a texture map into a fifth syntax element of the bitstream. Corresponding method and device for decoding the bitstream are also disclosed.
摘要:
A method and device for encoding data representative of an omnidirectional video into a bitstream, comprising the encoding of data representative of a first mapping surface into a first layer of the bitstream, the first layer referring to a first video track that comprises data corresponding to the background of the omnidirectional video, and the encoding of shadow information associated with at least a part of the first mapping surface into the bitstream, the at least a part being deformed to correspond to the topology of at least a part of a scene represented in the first video and comprising shadow. The present disclosure also refers to a corresponding decoding method and apparatus.
摘要:
A method for transmitting video content segments includes providing Low Frame Rate LFR and High Frame Rate HFR encoding mode designations for video content segments having static scenes and scenes with motion, respectively. Each video content segment is encoded accordance with its encoding mode designation and then transmitted with its encoding mode designation to enable retrieval and decoding by a decoder. Encoded video content appears as LFR content for processing as LFR content by equipment unaware of the present encoding.
摘要:
The present invention provide a method, apparatus and system for reducing crosstalk of auto-stereoscopic displays using higher resolution panels. In such panels, a fraction of a total number of views is generated by sending a same signal on a number of adjacent views. A signal processing correcting function is applied to the fractioned views to reduce crosstalk.
摘要:
The invention relates to a device configured to determine and/or render information representative of roughness of a first surface of an object, the device comprising means for measuring a first pressure applied by at least a part of a hand on said device, sticky means configured to be in contact with the first surface and means for measuring a speed of the device.
摘要:
Method and device adapted for the processing of lightfield data representative of a scene, said lightfield data comprising a plurality of elements, 4-dimensional coordinates being associated with each element. Following operations are performed: associating a ray with each element, the ray being obtained from the 4-dimensional coordinates associated with each element; determining a depth information for each element; determining an origin of each ray in the scene according to the depth information; grouping rays having a same origin in the scene to form a plurality of groups; processing the lightfield data according to the plurality of groups.
摘要:
A method and device for modifying attributes of one or more points of a 3D scene, the attributes comprising depth attribute and texture attribute stored respectively in a depth image and a texture image. To reach that aim, at least a first point of the 3D scene is identified, the at least a first point having depth information inconsistent with regard to depth information associated with a neighborhood of the at least a first point in the depth image. It is then determined whether the attributes of the at least a first point are correctable by analyzing neighborhood of the at least a first point in the depth image and in the texture image. For each first point having correctable attributes, the attributes stored in the depth image and/or texture image are modified according to the neighborhood in the depth image and/or in the texture image.
摘要:
In a particular implementation, a user environment space for haptic feedback and interactivity (HapSpace) is proposed. In one embodiment, the HapSpace is a virtual space attached to the user and is defined by the maximum distance that the user's body can reach. The HapSpace may move as the user moves. Haptic objects and haptic devices, and the associated haptic properties, may also be defined within the HapSpace. New descriptors, such as those enable precise locations and link between the user and haptic objects/devices are defined for describing the HapSpace.
摘要:
A method and device for encoding data representative of an omnidirectional video into a bitstream, comprising the encoding of data representative of a first mapping surface into a first layer of the bitstream, the first layer referring to a first video track that comprises data corresponding to the background of the omnidirectional video, and the encoding of data representative of a second mapping surface into a second layer of the bitstream, the second layer referring to a second video track that comprises data corresponding to the foreground of the omnidirectional video. The second mapping surface is preferably different from the first mapping surface. The present disclosure also refers to a corresponding decoding method and apparatus.