公开(公告)号：US20250071295A1

公开(公告)日：2025-02-27

申请号：US18724393

申请日：2022-11-17

Applicant: Nokia Technologies Oy

Inventor： Limin WANG ,  Seungwook HONG ,  Krit PANUSOPONE ,  Miska Matias HANNUKSELA ,  Jani LAINEMA

IPC: H04N19/167 ,  H04N19/105 ,  H04N19/172 ,  H04N19/82

Abstract: There are disclosed various methods, apparatuses and computer program products for video encoding. In some embodiments the method comprises obtaining a coding unit of a coding tree unit of a picture comprising a refreshed region and a non-refreshed region and a virtual boundary between the refreshed region and the non-refreshed region; examining whether the coding unit belongs to the refreshed region or to the non-refreshed region; treating the virtual boundary as a picture boundary when determining that the coding unit belongs to the refreshed region; or treating the virtual boundary as no boundary when determining that the coding unit belongs to the non-refreshed region.

公开(公告)号：US20240357106A1

公开(公告)日：2024-10-24

申请号：US18682311

申请日：2022-07-15

Applicant: Nokia Technologies Oy

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

IPC: H04N19/119 ,  H04N19/169 ,  H04N19/174

CPC classification number: H04N19/119 ,  H04N19/174 ,  H04N19/188

Abstract: The embodiments relate to apparatuses and methods for subpicture encoding. According to an embodiment a method for a sender apparatus comprises receiving (901) image data; partitioning (902) the image data into subpictures; generating (903) a transmission packet comprising said subpictures and a packet header; inserting (904) into the transmission packet a subpicture header comprising information regarding the subpictures; and transmitting (905) the transmission packet to be delivered to a receiver apparatus.

公开(公告)号：US20240202507A1

公开(公告)日：2024-06-20

申请号：US18555479

申请日：2022-04-15

Applicant: Nokia Technologies Oy

Inventor： Francesco CRICRÌ ,  Jani LAINEMA ,  Ramin GHAZNAVI YOUVALARI ,  Honglei ZHANG ,  Yat Hong LAM ,  Maria Claudia SANTAMARIA GOMEZ ,  Hamed REZAZADEGAN TAVAKOLI ,  Miska Matias HANNUKSELA

IPC: G06N3/049 ,  G06N3/08 ,  H04N19/90

CPC classification number: G06N3/049 ,  G06N3/08 ,  H04N19/90

Abstract: An apparatus with a corresponding method and computer program product are provided. 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 the steps (1600) of train or finetune at least one neural network (NN) based at least on a temporal persistence scope; and encode or decode one or more media frames elements based at least on the trained or finetuned at least one neural network. A further apparatus with a corresponding method and computer program product are provided. The further apparatus configured to carry out the steps (1700) of receive a weight-update prediction error from an encoder-side, predict a weight-update based on one or more reference weight updates, and a prediction function or algorithm, and reconstruct a weight update by combining the predicted weight-update and the prediction error.

公开(公告)号：US20230345024A1

公开(公告)日：2023-10-26

申请号：US18300073

申请日：2023-04-13

Applicant: Nokia Technologies Oy

Inventor： Miska Matias HANNUKSELA ,  Kashyap KAMMACHI SREEDHAR ,  Alireza AMINLOU

IPC: H04N19/44 ,  H04N19/172 ,  H04N19/159 ,  H04N19/105

CPC classification number: H04N19/44 ,  H04N19/172 ,  H04N19/159 ,  H04N19/105

Abstract: Various embodiments provide example apparatus, method, and computer program product. The example 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: define a derived image item; and define a single stream item property, wherein the single stream item property is used to indicate that input image items of the derived image item are concatenated in encoded domain to obtain a single stream and are to be decoded by a single decoder.

公开(公告)号：US20230112309A1

公开(公告)日：2023-04-13

申请号：US17934734

申请日：2022-09-23

Applicant: Nokia Technologies Oy

Inventor： Miska Matias HANNUKSELA ,  Emre Baris AKSU ,  Francesco CRICRÌ ,  Hamed REZAZADEGAN TAVAKOLI

IPC: H04N19/117 ,  H04N19/85 ,  H04N19/70 ,  H04N19/184

Abstract: A method, an apparatus, and a computer program product are provided. An example method includes defining an enhancement message comprising at least one of the following: an identifying number for identifying a post-processing filter; a mode identity (idc) field used of indicating association of a post-processing filter with the identifying number; a flag for specifying the enhancement message being used for a current layer; and the payload byte comprising a bitstream; and using the enhancement message for at least one of specifying a neural network that is used as a post-processing filter or cancelling a use of a previous post-processing filter with the same identifying number.

公开(公告)号：US20200302650A1

公开(公告)日：2020-09-24

申请号：US16823438

申请日：2020-03-19

Applicant: Nokia Technologies Oy

Inventor： Emre Baris AKSU ,  Miska Matias HANNUKSELA

IPC: G06T9/00 ,  H04N19/70 ,  H04N19/463 ,  G06T15/20 ,  H04N19/20

Abstract: A method, apparatus and computer program product access a video-based point cloud compression coded bitstream. The point cloud compression coded bitstream corresponds to a non-timed video-based point cloud compression representation that comprises one or more video point cloud compression units. The method, apparatus and computer program product encapsulate the one or more video point cloud compression units as one or more video point cloud compression unit items. The method, apparatus and computer program product also cause storage of the one or more video point cloud compression unit items in a file.

公开(公告)号：US20200154139A1

公开(公告)日：2020-05-14

申请号：US16746513

申请日：2020-01-17

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Miska Matias HANNUKSELA

IPC: H04N19/597 ,  H04N19/523 ,  H04N19/30 ,  H04N19/182 ,  H04N19/105 ,  H04N19/136 ,  H04N19/17 ,  H04N19/70 ,  H04N19/187

Abstract: Methods, apparatuses and computer program products are described for video encoding. A method can include reconstructing a 360-degree panoramic source picture for inter-layer prediction and deriving an inter-layer reference picture from the 360-degree panoramic source picture. Deriving can include upsampling at least a part of the 360-degree panoramic source picture. Upsampling can include filtering samples of a border region of the 360-degree panoramic source picture using, at least in part, one or more sample values of an opposite side border region and one or more variable values associated with one or more blocks of the opposite side border region. Deriving can include determining a reference region that crosses a picture boundary of the 360-degree panoramic source picture and including in the reference region at least one of sample values of the opposite side border region and variable values associated with blocks of the opposite side border region.

公开(公告)号：US20200077105A1

公开(公告)日：2020-03-05

申请号：US16679851

申请日：2019-11-11

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Miska Matias HANNUKSELA

IPC: H04N19/33 ,  H04N19/136 ,  H04N19/46 ,  H04N19/172 ,  H04N19/70 ,  H04N19/105

Abstract: There is provided methods, apparatuses and computer program products for video coding and decoding. A first part of a first coded video representation is decoded, and information on decoding a second coded video representation is received and parsed. The coded second representation differs from the first coded video representation in chroma format, sample bit depth, color gamut and/or spatial resolution, and the information indicates if the second coded video representation may be decoded using processed decoded pictures of the first coded video representation as reference pictures. If the information indicates that the second coded video representation may be decoded using processed decoded pictures of the first coded video representation as a prediction reference, decoded picture(s) of the first part is/are processed into processed decoded picture(s) by resampling and/or sample value scaling; and decoding a second part of a second video representation using said processed decoded picture(s) as reference pictures.

公开(公告)号：US20190342562A1

公开(公告)日：2019-11-07

申请号：US16298763

申请日：2019-03-11

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Miska Matias HANNUKSELA

IPC: H04N19/30 ,  H04N19/70

Abstract: A method comprising: encoding pictures into a bitstream, the bitstream comprising at least two scalability layers, pictures being associated with access units and pictures being associated individually with one of the at least two scalability layers; indicating in the bitstream inter-layer prediction dependencies, indicative of direct reference layers, if any, of a first scalability layer and indirect reference layers, if any, of the first scalability layer; selecting an earlier picture in decoding order as a basis for deriving picture order count (POC) related variables for a current picture based on a pre-defined algorithm, the current picture being associated with a current scalability layer, wherein the earlier picture is the closest preceding picture, in decoding order, to the current picture among a set of pictures that are associated with the current scalability layer or any direct or indirect reference layer of the current scalability layer.

公开(公告)号：US20190320192A1

公开(公告)日：2019-10-17

申请号：US16450464

申请日：2019-06-24

Applicant: NOKIA TECHNOLOGIES OY

Inventor： Miska Matias HANNUKSELA

IPC: H04N19/31 ,  H04N19/187 ,  H04N19/172 ,  H04N19/70 ,  H04N19/46 ,  H04N19/433

Abstract: A method comprising: encoding a first picture on a first scalability layer and on a lowest temporal sub-layer; encoding a second picture on a second scalability layer and on the lowest temporal sub-layer, wherein the first picture and the second picture represent the same time instant, encoding one or more first syntax elements, associated with the first picture, with a value indicating that a picture type of the first picture is other than a step-wise temporal sub-layer access (STSA) picture; encoding one or more second syntax elements, associated with the second picture, with a value indicating that a picture type of the second picture is a step-wise temporal sub-layer access picture; and encoding at least a third picture on a second scalability layer and on a temporal sub-layer higher than the lowest temporal sub-layer.