公开(公告)号：US20240205422A1

公开(公告)日：2024-06-20

申请号：US18555066

申请日：2022-03-31

Applicant: Nokia Technologies Oy

Inventor： Emre Baris AKSU ,  Miska Matias HANNUKSELA ,  Kashyap KAMMACHI SREEDHAR

IPC: H04N19/17 ,  H04N19/167 ,  H04N19/70

CPC classification number: H04N19/17 ,  H04N19/167 ,  H04N19/70

Abstract: Various embodiments provide an apparatus, a method, and a computer program product. The apparatus includes at least one processor, and at least one non-transitory memory including computer program code; wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus at least to perform: define or extend a file format data structure to comprise: a cell size to indicate dimensions of a region, in pixels, comprising a mask value; a mask coding method to indicate a coding method applied to a mask or data of a media; mask coding parameters to indicate additional encoding or decoding parameters needed to process the coded mask data; and a mask configuration comprising the mask related information as a mask configuration structure.

公开(公告)号：US20240187673A1

公开(公告)日：2024-06-06

申请号：US18562613

申请日：2022-05-13

Applicant: Nokia Technologies Oy

Inventor： Saba AHSAN ,  Ali Cengiz BEGEN ,  Igor Danilo Diego CURCIO ,  Burak KARA ,  Mehmet Necmettin AKCAY ,  Sujeet Shyamsundar MATE ,  Emre Baris AKSU ,  Miska Matias HANNUKSELA

IPC: H04N21/2662 ,  G06F3/01 ,  G06T7/00 ,  G06T7/20 ,  G06V40/20

CPC classification number: H04N21/2662 ,  G06F3/013 ,  G06T7/0002 ,  G06T7/20 ,  G06V40/20 ,  G06T2207/30168

Abstract: The embodiments relate to a method and a technical equipment for implementing the method. The method comprises receiving encoded omnidirectional video content for displaying, wherein the encoded omnidirectional video content comprises a viewport region, a margin region outside the viewport region and a background region (801); defining image regions to be included in the margin region, wherein the definition is based on a margin speed threshold (802); determining a head speed and a direction of motion (803); determining when the head speed is greater than or equal to the margin speed threshold, and as a response to the determining, adding negative margins in one or more direction with respect to the viewport (804); downloading the viewport with a first quality; and downloading the negative margins at a quality lower than the first quality (805).

公开(公告)号：US20240121387A1

公开(公告)日：2024-04-11

申请号：US18470973

申请日：2023-09-20

Applicant: Nokia Technologies Oy

Inventor： Jani LAINEMA ,  Francesco CRICRÌ ,  Ramin GHAZNAVI YOUVALARI ,  Miska Matias HANNUKSELA ,  Honglei ZHANG ,  Maria Claudia SANTAMARIA GOMEZ ,  Ruiying YANG

IPC: H04N19/117 ,  H04N19/103 ,  H04N19/136 ,  H04N19/157 ,  H04N19/172 ,  H04N19/176 ,  H04N19/182 ,  H04N19/42 ,  H04N19/80

CPC classification number: H04N19/117 ,  H04N19/103 ,  H04N19/136 ,  H04N19/157 ,  H04N19/172 ,  H04N19/176 ,  H04N19/182 ,  H04N19/42 ,  H04N19/80

Abstract: An example method includes: receiving an input extended block comprising an input block and input margins, wherein the input block is derived from an image or a video frame, and wherein the input block and the input margins are input to a filter, and wherein the input margins comprise pixels of the image or the video frame; filtering the input extended block to obtain a filtered extended block comprising a filtered block and filtered margins; receiving other blocks, wherein the other blocks are derived from the image or video frame, and wherein at least one pixel of the other blocks overlaps with at least one pixel of the filtered margins of the filtered extended block; and blending the filtered extended block with the other blocks, wherein an operation to blend the filtered extended block with the other blocks is applied to two or more overlapping pixels

公开(公告)号：US20230110503A1

公开(公告)日：2023-04-13

申请号：US17759550

申请日：2021-02-04

Applicant: Nokia Technologies Oy

Inventor： Jani LAINEMA ,  Emre Baris AKSU ,  Miska Matias HANNUKSELA ,  Alireza ZARE ,  Francesco CRICRI

IPC: H04N19/42 ,  H04N19/176 ,  H04N19/172 ,  H04N19/463 ,  H04N19/117 ,  G06N20/00

Abstract: The embodiments relate to method for encoding and decoding, wherein the method for encoding comprises receiving an input block of a video frame for encoding; applying at least a learning-based model (702) for said input block as a processing step for encoding the block; combining (703) an output of a learning-based model with one or more data sources (712, 713) by a combination process; encoding block to a bitstream (40); using a result of the combination process as additional input for the learning-based model for encoding a subsequent block; and encoding to a bitstream combination information (720) used in the combination process, said combination information comprising at least one or more combination parameters. The embodiments also relate to technical equipment for implementing the methods.

公开(公告)号：US20230062752A1

公开(公告)日：2023-03-02

申请号：US17760017

申请日：2021-02-12

Applicant: Nokia Technologies Oy

Inventor： Jani LAINEMA ,  Francesco CRICRI ,  Emre Baris AKSU ,  Alireza ZARE ,  Miska Matias HANNUKSELA

IPC: H04N19/149 ,  H04N19/159 ,  H04N19/176 ,  G06N3/04

Abstract: The embodiments relate to a method for encoding and a decoding, and apparatuses for the same. The method for encoding comprises receiving a block of a video frame for encoding (1510); making a decision on whether or not a learning-based model is to be applied as a processing step for encoding the block (1520); applying the learning-based model for said input block according to the decision, where the learning-based model has been selectively fine-tuned according to information relating to activation of the learning-based model of previously-decoded blocks (1530); encoding a signal corresponding to the decision on usage of the learning-based model into a bitstream (1540); and encoding the block into a bitstream with an information whether the block is to be used for finetuning (1550).

公开(公告)号：US20220167042A1

公开(公告)日：2022-05-26

申请号：US17433075

申请日：2019-12-12

Applicant: Nokia Technologies Oy

Inventor： Miska Matias HANNUKSELA ,  Emre Baris AKSU ,  Ari HOURUNRANTA ,  Kashyap KAMMACHI-SREEDHAR ,  Igor Danilo Diego CURCIO

IPC: H04N21/435 ,  H04L65/60 ,  H04N21/845

Abstract: A method, apparatus and computer program product encode, into a media description, a first information item indicative of a first locator for segment metadata for a set of representations. The method, apparatus and computer program product encode, into the media description, one or more representation-specific information items indicative of representation-specific locator for segment media data for one or more representations of the set of representations. The method, apparatus and computer program product cause storage of the media description with the set of representations.

公开(公告)号：US20220038733A1

公开(公告)日：2022-02-03

申请号：US17504092

申请日：2021-10-18

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Miska Matias HANNUKSELA ,  Kemal UGUR

IPC: H04N19/463 ,  H04N19/70 ,  H04N19/30 ,  H04N19/61

Abstract: A method comprising encoding a bitstream comprising a base layer, a first enhancement layer and a second enhancement layer; encoding an indication of both the base layer and the first enhancement layer used for prediction for the second enhancement layer in the bitstream; encoding, in the bitstream, an indication of a first set of prediction types that is applicable from the base layer to the second enhancement layer, wherein the first set of prediction types is a subset of all prediction types available for prediction between layers, and encoding, in the bitstream, an indication of a second set of prediction types that is applicable from the base layer or the first enhancement layer to the second enhancement layer, wherein the second set of prediction types is a subset of all prediction types available for prediction between layers.

公开(公告)号：US20220021864A1

公开(公告)日：2022-01-20

申请号：US17376345

申请日：2021-07-15

Applicant: Nokia Technologies Oy

Inventor： Sujeet Shyamsundar MATE ,  Igor Danilo Diego CURCIO ,  Saba AHSAN ,  Emre AKSU ,  Miska Matias HANNUKSELA ,  Yu YOU

IPC: H04N13/161 ,  H04N13/111 ,  H04N13/194 ,  H04N19/597

Abstract: A user equipment, media control unit, media resource function, or another device or function capable of receiving, manipulating, and transmitting data may be configured to: receive an omnidirectional video; determine a viewport of a user equipment; determining a delivery mode; determine a region of the omnidirectional video based, at least partially, on the determined viewport and the determined delivery mode; encode the determined region; packetizing the encoded region; and transmit the packetized region to the user equipment based, at least partially, on the determined delivery mode.

公开(公告)号：US20200228827A1

公开(公告)日：2020-07-16

申请号：US16834429

申请日：2020-03-30

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Miska Matias HANNUKSELA

IPC: H04N19/52 ,  H04N19/46 ,  H04N19/31 ,  H04N19/59 ,  H04N19/33 ,  H04N19/70

Abstract: There are disclosed various methods, apparatuses and computer program products for video encoding and decoding. In some embodiments a method comprises at least one of the following: encoding into a bitstream an indication that motion fields are stored, but only for inter-layer motion prediction; encoding into a bitstream an indication on a limited scope of motion field usage; encoding into a bitstream an indication whether or not to use the motion field for prediction; encoding into a bitstream an indication of storage parameters for storing motion information.

公开(公告)号：US20200213607A1

公开(公告)日：2020-07-02

申请号：US16812977

申请日：2020-03-09

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Miska Matias HANNUKSELA ,  Srikanth Manchenahally GOPALAKRISHNA

IPC: H04N19/46 ,  H04N19/463 ,  H04N19/58

Abstract: A reference picture marking process and a reference picture list management process is handled in a unified reference picture marking and reference picture list management process. A new idle reference picture list may be used for handling reference pictures that are not used for reference in the current picture. Differential coding of picture order count may be used to increase coding efficiency. The reference picture management syntax structure may be sent in the picture parameter set for improved coding efficiency e.g. in regular GOP (group of pictures) arrangements.