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公开(公告)号：US11962793B2
公开(公告)日：2024-04-16
申请号：US17739763
申请日：2022-05-09
IPC分类号： H04N19/33 , H04N19/105 , H04N19/136 , H04N19/172 , H04N19/46 , H04N19/70
CPC分类号： H04N19/33 , H04N19/105 , H04N19/136 , H04N19/172 , H04N19/46 , H04N19/70
摘要： 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.
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公开(公告)号：US11943421B2
公开(公告)日：2024-03-26
申请号：US17726194
申请日：2022-04-21
发明人： Kashyap Kammachi Sreedhar , Igor Danilo Diego Curcio , Miska Matias Hannuksela , Sujeet Shyamsundar Mate , Emre Baris Aksu
IPC分类号： H04N13/172 , H04N13/161
CPC分类号： H04N13/172 , H04N13/161
摘要： A method includes generating a bitstream defining a presentation, the presentation comprising an omnidirectional visual media content and a first visual media component and a second visual media component; indicating in the bitstream a first presentation timeline and a second presentation timeline; and indicating in the bitstream a switching mode with respect to the first presentation timeline associated with the first visual media component, or with respect to the second presentation timeline associated with the second visual media component, the switching mode being indicated dependent on a viewpoint of a user; wherein the switching mode provides an indication of switching to the first visual media component or to the second visual media component, the first visual media component corresponding to content captured from a first omnidirectional camera in a first location, and the second visual media component corresponding to content captured from a second omnidirectional camera in a second location.
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公开(公告)号：US11818371B2
公开(公告)日：2023-11-14
申请号：US17496161
申请日：2021-10-07
IPC分类号： H04N19/30 , H04N19/70 , H04N19/172 , H04N19/167 , H04N19/184 , H04N19/169 , H04N19/132
CPC分类号： H04N19/30 , H04N19/132 , H04N19/167 , H04N19/172 , H04N19/184 , H04N19/188 , H04N19/70
摘要： 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.
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公开(公告)号：US11653054B2
公开(公告)日：2023-05-16
申请号：US17433075
申请日：2019-12-12
发明人： Miska Matias Hannuksela , Emre Baris Aksu , Ari Hourunranta , Kashyap Kammachi-Sreedhar , Igor Danilo Diego Curcio
IPC分类号： H04N21/435 , H04L65/70 , H04L65/75 , H04N21/845
CPC分类号： H04N21/435 , H04L65/70 , H04L65/762 , H04N21/845
摘要： 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.
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公开(公告)号：US11330279B2
公开(公告)日：2022-05-10
申请号：US16679851
申请日：2019-11-11
IPC分类号： H04N19/33 , H04N19/46 , H04N19/105 , H04N19/136 , H04N19/70 , H04N19/172
摘要： 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.
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公开(公告)号：US11200701B2
公开(公告)日：2021-12-14
申请号：US16823438
申请日：2020-03-19
摘要： 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.
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公开(公告)号：US10951950B2
公开(公告)日：2021-03-16
申请号：US15664929
申请日：2017-07-31
IPC分类号： H04N21/472 , G06F3/01 , H04N21/442 , H04N21/44 , H04N21/81 , H04N21/426 , H04N21/2387 , H04N21/431 , H04N21/433 , G06F3/0484
摘要： A method, apparatus and computer program product facilitate the viewing of a storyline defined in a video. In regards to a method, viewing by a user of different sequential areas of a video over time is monitored. The different sequential areas of the video over time define a storyline. If the storyline is followed, the video continues to be presented. However, if the storyline is not followed in that a next sequential area of the video is not viewed, a portion of the video prior to the next sequential area is caused to be repeatedly replayed in a loop. Following this repeated replay of the portion of the video, the repeated replay of the portion of the video is ceased and the presentation of the video is resumed if the storyline is followed and the next sequential area of the video in the storyline is viewed.
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公开(公告)号：US10931968B2
公开(公告)日：2021-02-23
申请号：US15664847
申请日：2017-07-31
IPC分类号： H04N19/543 , H04N19/179 , H04N19/563 , H04N19/59 , H04N19/503 , H04N19/46 , H04N19/70 , H04N19/17 , H04N19/105 , H04N19/58 , H04N19/136 , H04N19/132 , H04N19/23 , H04N19/167 , H04N21/234 , H04N19/27 , H04N19/587 , H04N21/44
摘要： A method, apparatus and computer program product are provided in order to create and/or decode video content of a scene that includes regions having looping video of different loop lengths with the video content of the scene being configured to be repeatedly looped, such as in the form of a cinemagraph, without any temporal discontinuity. In the context of a method, the video content of a scene is encoded. The video content includes at least two regions having looping videos of different loop lengths. The method also includes constructing metadata in association with the video content. The metadata comprises information identifying a location of each region within the scene. The metadata further comprises a loop length for each of the at least two regions. The method further includes causing provision of the video content as encoded and the metadata.
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公开(公告)号：US20200221063A1
公开(公告)日：2020-07-09
申请号：US16731610
申请日：2019-12-31
发明人： Kashyap Kammachi Sreedhar , Igor Danilo Diego Curcio , Miska Matias Hannuksela , Sujeet Shyamsundar Mate , Emre Baris Aksu
IPC分类号： H04N13/172 , H04N13/161
摘要： The invention relates to a solution wherein a bitstream defining a presentation is generated, the presentation comprising an omnidirectional visual media content and a first visual media component and a second visual media component; indicating in the bitstream a first presentation timeline associated with the first visual media component; indicating in the bitstream a second presentation timeline associated with the second visual media component; indicating in the bitstream a switching mode to a second presentation timeline associated with the second visual media component; and indicating in the bitstream, that the switching mode is with respect to the first presentation timeline or to the second presentation timeline.
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公开(公告)号：US10681360B2
公开(公告)日：2020-06-09
申请号：US16450464
申请日：2019-06-24
IPC分类号： H04N19/31 , H04N19/70 , H04N19/46 , H04N19/433 , H04N19/172 , H04N19/187
摘要： 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.
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