Nokia Technologies Oy

Nokia Corporation

Mika Pesonen

Kimmo Tapio Roimela

Sebastian Schwarz

Jari Antero Nikara

Eero Aho

Johannes Pystynen

Johannes Rajala

Emre Baris Aksu

Vinod Kumar Malamal Vadakital

Kimmo Kuusilinna

Tomi Sokeila

Aki Launiainen

Ville Timonen

Jaakko Keränen

Tapani Leppänen

Vida Fakour Sevom

Lauri Iiola

A method for decoding comprises receiving a compressed bitstream relating to a video presentation; decoding from the received bitstream data relating to three-dimensional blocks of a video frame; for each block of the video frame, determining information on surface parameters; generating a bounding box for a three-dimensional block according to the surface parameters; calculating a ray direction for each pixel of the three-dimensional block from a viewpoint to coordinates of the pixel; determining at least two points according to an intersection of the ray to the generated bounding box; ray casting points between the determined at least two points until a condition to finish the ray casting is met; reconstructing three-dimensional data from the geometry image and the texture image according to the information on one or more surface parameters for a block; reconstructing a video presentation according to the reconstructed three-dimensional data for rendering.

Method, an apparatus and a computer program product for volumetric video encoding and decoding

A method, apparatus and computer program product provide for encoding and decoding volumetric video data. In relation to encoding, one or more patches into which a point cloud representative of volumetric video data has been decomposed are evaluated by identifying one or more areas within a respective patch in which a difference in depth values between corresponding pixels of at least two depth planes satisfy a predefined threshold. For an area within the respective patch that has been identified, a sub patch is generated representative of the depth values of one of the depth planes. The patches are mapped including the one or more patches and the sub patch to a grid and an image is generated based upon the patches mapped to the grid.

Method and apparatus for encoding and decoding volumetric video data

A method, apparatus, and computer program product provide for compression of volumetric video in a manner that is more efficient and requires less metadata updates. A method can include converting a volumetric video scene into a canonical representation comprising a plurality of frames comprising a video atlas and corresponding metadata. Each frame can be divided into a plurality of tiles based on different tile characteristics, which can be used to analyze and characterize the different tiles for atlas packing purposes. Tiles can be clipped or merged or otherwise edited in the atlas. Tiles can be decomposed to metadata suitable for later rendering of the tile. Tiles having a similar enough color attribute or depth attribute during the entire group of photos can be rendered as a single instance, clipped entirely, and rendered based upon a reference tile and the stored metadata.

Signalling of metadata for volumetric video

The embodiments relate to a method comprising receiving () a volumetric video comprising a three-dimensional object; segmenting () the three-dimensional object into a plurality of regions; for one or more regions of a three-dimensional object (): inserting into a bitstream or signaling along a bitstream a signal indicating one or more of the following: intra frame offset relating to three-dimensional geometry value (Z) between two regions within a frame; inter frame offset relating to three-dimensional geometry value (Z) between two regions in different frames; depth smoothness constraint relating to three-dimensional geometry value (Z) and transmitting () the bitstream to a decoder. The embodiments relate to a method for receiving and decoding the bitstream, as well as to technical equipment for implementing any of the methods.

Method, an apparatus and a computer program product for volumetric video

A method and system for three-dimensional video content processing is disclosed comprising an operation of receiving first video data representing three-dimensional video content arranged as a plurality of first tiles associated with respective sub-areas of an image. Another operation comprises providing data indicating for each first tile a depth range of video content within said tile. Another operation comprises determining for each first tile a respective volume based on the depth range. Another operation comprises determining a field of view of a user in relation to the first tile volumes. Another operation comprises rendering of the first video data for one or more first tiles only if their determined volume is at least partially within the field of view.

Three-dimensional video processing

The invention relates to a method and technical equipment for implementing the method. The method comprises generating a three-dimensional segment of a scene of a content; generating more than one two-dimensional views of the three-dimensional segment, each two-dimensional view representing a virtual camera view; generating multi-view streams by encoding each of the two-dimensional views; encoding parameters of a virtual camera to the respective stream of the multi-view stream; receiving a selection of one or more streams of the multi-view stream; and streaming only the selected one or more streams.

Method and an apparatus and a computer program product for adaptive streaming

In some embodiments depth information of a frame of volumetric video is obtained. The depth information is examined in a block-wise manner, wherein each block comprises two or more depth values. A classification indication of a block is provided in a block offset table. Said classification indication is a partially full block, if the examination reveals that at least one depth value of the block is different from a maximum depth value, and at least one other depth value of the block is equal to the maximum depth value;

Apparatus, a method and a computer program for coding and rendering volumetric video

A method for recording a video sequence comprises: &#x2014;receiving a first instruction, which defines the position of a first boundary with respect to a preview image, &#x2014;receiving a second instruction, which defines the position of a second boundary, &#x2014;determining the position of a first sensor portion according the position of the first boundary, &#x2014;determining the position of a second sensor portion according the second instruction, &#x2014;providing first sensor data by forming a first optical image on an image sensor, &#x2014;providing second sensor data by forming a second optical image on the image sensor, &#x2014;determining a first image frame from the first sensor data obtained from the first sensor portion, &#x2014;determining a second image frame from the second sensor data obtained from the second sensor portion, and &#x2014;storing the first image frame and the second image frame.

Method and apparatus for recording video sequences

Systems and methods for creating 'feelings' from tangible objects in a responsive and cost efficient manner are provided. In accordance with such systems and methods, near field communication (NFC) tags are embedded into tangible objects, e.g., Compact Discs (CDs), books, posters, etc., where the NFC tags include feeling/sensory feedback parameters associated with the object in which the NFC tag is embedded. That is, such NFC tags are able to stimulate one or more senses, such as the human senses of sight, hearing, touch, smell, and taste. Thus, sensory feedback is provided via tangible objects, where only minimal cost (e.g., a few cents) is added to the production/manufacture of such objects.

Method and apparatus for sensory tags providing sound, smell and haptic feedback

A projector screen includes one or more markers that are configured to be usable by projection processing circuitry in order to calculate a user perceived distortion in an image to be projected on the projector screen.

Growing community of inventors

Tampere, Finland

Mika Pesonen