公开(公告)号：US12206959B2

公开(公告)日：2025-01-21

申请号：US18001817

申请日：2021-05-24

Applicant: Nokia Technologies Oy

Inventor： Emre Aksu ,  Miska Hannuksela ,  Kashyap Kammachi Sreedhar

IPC: H04N21/84 ,  H04N21/854

Abstract: A method, apparatus and computer program product are provided to signaling multiple media data types in a container file format, for example, ISOBMFF, in an efficient manner. In the context of a signaling method, media type definitions overloaded in an instance a plurality of media type definitions is present in compatible media type list, wherein a media type definition is associated with a media type. The method then indicates, using the compatible media type list, presence of a plurality of media types in a metadata or multimedia box. Corresponding apparatuses and computer program products are also provided.

公开(公告)号：US12074934B2

公开(公告)日：2024-08-27

申请号：US17433387

申请日：2020-02-21

Applicant: Nokia Technologies Oy

Inventor： Miska Hannuksela ,  Sujeet Shyamsundar Mate ,  Emre Aksu ,  Kashyap Kammachi Sreedhar

IPC: H04L65/75

CPC classification number: H04L65/75

Abstract: A method, apparatus and computer program product create a media presentation description with a first representation set and a second representation set. The first representation set belongs to a first adaptation set and the second representation set belongs to a second adaptation set and the first representation set is associated with the first media entity and the second representation set is associated with the second media entity. The method, apparatus and computer program product encode, in the media presentation description, an adaptation and representation grouping descriptor. The adaptation and representation grouping descriptor groups the first representation set with the second representation set based on the grouping type.

公开(公告)号：US12034973B2

公开(公告)日：2024-07-09

申请号：US16972318

申请日：2019-07-04

Applicant: Nokia Technologies Oy

Inventor： Miska Hannuksela ,  Emre Aksu ,  Kashyap Kammachi Sreedhar

IPC: H04N19/70 ,  H04N19/30 ,  H04N21/235 ,  H04N21/845

CPC classification number: H04N19/70 ,  H04N21/2358 ,  H04N21/8456 ,  H04N19/30

Abstract: Described embodiments include methods and techniques for creating media container files. An exemplary method comprises steps wherein, instead of estimating the size of a media segment header based on the segment duration, identified media data boxes are used. In the method, an identified media data element is written in a container file. Included into the identified data element, an identifier is used as a reference for the identified media data of the segment by other elements. The identifier can be a first movie fragment sequence number, or a first track fragment decode time.

公开(公告)号：US11956519B2

公开(公告)日：2024-04-09

申请号：US17042498

申请日：2019-04-08

Applicant: Nokia Technologies Oy

Inventor： Emre Aksu ,  Miska Hannuksela ,  Olli Kilpelainen ,  Jonne Juhani Mäkinen ,  Juha-Pekka Hippeläinen ,  Jani Kattelus

IPC: H04N21/8547 ,  G06F16/41 ,  G06F16/438 ,  G11B27/031

CPC classification number: H04N21/8547 ,  G06F16/41 ,  G06F16/438 ,  G11B27/031

Abstract: A method, apparatus and computer program product are provided to signal grouping types in an image container file. Relative to the construction of an image container file, the method, apparatus and computer program product construct an image container file having a group box with a grouping type associated with burst-captured images, time-synchronized images captured by a plurality of image capture devices or an image item associated with an audio track. With respect to the processing of an image container file, the method, apparatus and computer program product permit an image container file having a group box with a grouping type associated with one of burst-captured images, time-synchronized images captured by a plurality of image capture devices or an image item associated with an audio track to be processed to cause one or more image items from the image container file to be rendered in accordance with the grouping type.

公开(公告)号：US11818371B2

公开(公告)日：2023-11-14

申请号：US17496161

申请日：2021-10-07

Applicant: Nokia Technologies Oy

Inventor： Miska Matias Hannuksela ,  Kashyap Kammachi Sreedhar ,  Emre Aksu

IPC: H04N19/30 ,  H04N19/70 ,  H04N19/172 ,  H04N19/167 ,  H04N19/184 ,  H04N19/169 ,  H04N19/132

CPC classification number: H04N19/30 ,  H04N19/132 ,  H04N19/167 ,  H04N19/172 ,  H04N19/184 ,  H04N19/188 ,  H04N19/70

Abstract: An apparatus includes at least one processor; and at least one 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: indicate an extraction reference map entry used to assign a group identifier to at least one extraction reference, the extraction reference map entry indicating a subpicture layout; wherein the at least one extraction reference causes extraction of a network abstraction layer unit data by reference from another track; wherein the at least one extraction reference comprises an index of a track reference having a subpicture type within a subpicture order sample group description entry; and indicate, using the at least one extraction reference, subpictures or slices of a coded picture in decoding order.

公开(公告)号：US20180048910A1

公开(公告)日：2018-02-15

申请号：US15790314

申请日：2017-10-23

Applicant: Nokia Technologies Oy

Inventor： Ossi Kalevo ,  Emre Aksu ,  Marta Karczewicz

IPC: H04N19/527 ,  H04N19/86

CPC classification number: H04N19/527 ,  H04N19/86

Abstract: The application relates to a method for reducing visual artefacts in a frame of a digital video signal, which is coded by blocks and then decoded. A block type is defined according to the coding method for a block selected according to a predetermined set of coding types. In the method filtering is performed to reduce visual artefacts due to a block boundary. The filtering performed depends on block types of the frame in the environment of the block boundary.

公开(公告)号：US11909983B2

公开(公告)日：2024-02-20

申请号：US17433034

申请日：2020-02-19

Applicant: Nokia Technologies Oy

Inventor： Miska Hannuksela ,  Igor Curcio ,  Sujeet Shyamsundar Mate ,  Emre Aksu ,  Ari Hourunranta

IPC: H04N19/105 ,  H04N19/159 ,  H04N19/172 ,  H04N19/146

CPC classification number: H04N19/146 ,  H04N19/105 ,  H04N19/159 ,  H04N19/172

Abstract: A method comprising: encoding video media content into at least a first representation and a second representation, wherein the first representation comprises a switchable inter-coded picture, wherein the switchable picture has a first characteristic that no pictures preceding the switchable picture in decoding order are used as reference pictures for any non-switchable pictures following the switchable picture in decoding order; and the second representation comprises one or more decoder reset pictures aligned with the switchable pictures of the first representation, wherein the frame rate of the second representation is smaller than or equal to the frame rate of the first representation and the resolutions of the first and the second representation are equal.

公开(公告)号：US11553258B2

公开(公告)日：2023-01-10

申请号：US16973655

申请日：2019-07-09

Applicant: Nokia Technologies Oy

Inventor： Miska Hannuksela ,  Emre Aksu

IPC: H04N21/854 ,  H04N21/8543 ,  H04N19/70

Abstract: A method comprising: authoring a first section of a first media format, wherein the first section comprises type and length fields of the first section, wherein the type value of the first section of the first media format is such that allows parsers of the first media format ignore the first section; one or more entire sections complying with a second media format; and a section header of a bridge section complying with the second media format, wherein the section header comprises type and length fields; authoring a second section of the first media format, comprising type and length fields of the second section; and data complying with the second media format; and setting the content of the first section to be such that it allows parsers of the second media format ignore the type and length fields of the second section.

公开(公告)号：US11228767B2

公开(公告)日：2022-01-18

申请号：US16771115

申请日：2018-12-03

Applicant: Nokia Technologies Oy

Inventor： Miska Hannuksela ,  Mikko Honkala ,  Jani Lainema ,  Francesco Cricri ,  Emre Aksu

IPC: H04N19/149 ,  H04N19/176 ,  H04N19/436 ,  H04N19/65 ,  G06N3/08

Abstract: A method comprising: deriving a first prediction block (608) at least partly based on an output of a neural net (602) using a first set of parameters; deriving a first encoded prediction error block (614-620) through encoding a difference of the first prediction block and a first input block; encoding (620) the first encoded prediction error block into a bitstream; deriving a first reconstructed prediction error block (624) from the first encoded prediction error block; deriving a training signal (628) from one or both of the first encoded prediction error block and/or the first reconstructed prediction error block (624); retraining (630) the neural net (602) with the training signal (628) to obtain a second set of parameters for the neural net (602); deriving a second prediction block (608) at least partly based on an output of the neural net using the second set of parameters; deriving a second encoded prediction error block (614-620) through encoding a difference of the second prediction block and a second input block; and encoding (620) the second encoded prediction error block into a bitstream. The invention relates to image or video encoding or decoding, especially by online training a neural network (602) that is in the prediction loop.

公开(公告)号：US20210314573A1

公开(公告)日：2021-10-07

申请号：US17218967

申请日：2021-03-31

Applicant: Nokia Technologies Oy

Inventor： Honglei Zhang ,  Hamed Rezazadegan Tavakoli ,  Francesco Cricri ,  Miska Matias Hannuksela ,  Emre Aksu ,  Nam Le

IPC: H04N19/146 ,  H04N19/85 ,  H04N19/436 ,  H04N19/103

Abstract: An 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: decode encoded data to generate decoded data, the encoded data having a bitrate lower than that of original data, and extract features from the decoded data; decode encoded residual features to generate decoded residual features; and generate enhanced decoded features as a result of combining the decoded residual features with the features extracted from the decoded data.