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公开(公告)号：US12088847B2
公开(公告)日：2024-09-10
申请号：US17616541
申请日：2020-05-20
发明人： Miska Hannuksela
IPC分类号： H04N19/70 , H04N19/105 , H04N19/169 , H04N19/172
CPC分类号： H04N19/70 , H04N19/105 , H04N19/172 , H04N19/1883
摘要： There is disclosed a method, an apparatus and a computer program product for video encoding and decoding. In accordance with an embodiment the method for encoding comprises concluding that a coded video sequence starts at particular position in a bitstream, wherein the coded video sequence is a sequence of coded pictures in decoding order that is independently decodable and is followed by another coded video sequence or the end of the bitstream, and wherein the bitstream comprises access units, and an access unit comprises coded video data for a single time instance and associated other data, and an access unit comprises one or more network abstraction layer (NAL) units; and indicating in an access unit delimiter to treat the NAL unit(s) associated with the access unit delimiter as a start of a coded video sequence.
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公开(公告)号：US12022117B2
公开(公告)日：2024-06-25
申请号：US18121729
申请日：2023-03-15
发明人： Miska Hannuksela
IPC分类号： H04N19/597 , H04N19/119 , H04N19/167 , H04N19/169 , H04N19/177 , H04N19/46 , H04N19/593 , H04N19/70 , H04N19/85
CPC分类号： H04N19/597 , H04N19/119 , H04N19/167 , H04N19/177 , H04N19/188 , H04N19/46 , H04N19/593 , H04N19/70 , H04N19/85
摘要： Four or more bitstream versions of a same content are encoded and divided into segments of independently coded tile sets representing multiple spatial regions. First and second bitstreams include independently coded tile sets encoded at a first quality. Third and fourth bitstreams include independently coded tile sets encoded at a second quality. First and third bitstreams have first random access picture interval. Second and fourth bitstreams have second random access picture interval. Independently coded tile sets are grouped into multiple groups of collocated sub-picture tracks, only one of said tile sets per group is intended to be received and/or decoded per any segment. Instruction(s) are generated for merging tile sets of different spatial locations into coded picture(s), causing a tile set originating from a random access picture to be decoded as a tile set originating from a non-random-access picture when merged with a tile set originating from a non-random-access picture.
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3.发明授权公开(公告)号：US11722751B2
公开(公告)日：2023-08-08
申请号：US17789883
申请日：2020-12-30
IPC分类号： H04N21/84 , H04N21/854
CPC分类号： H04N21/84 , H04N21/85406
摘要： The embodiments relate to a method, including writing a first and a second media entity in a container file; creating a media presentation description (MPD) with a first and a second Representation; the Representations belonging to Adaptation Sets; the Representations being associated with the media entities of the container file; when one of the Representations belongs to a media entity which is a thumbnail to a viewpoint or a thumbnail to an overlay, the method includes writing in the MPD file an association/correspondence/grouping information of the said one Representation with another Representation belonging to a media entity which is a viewpoint or an overlay, correspondingly. The embodiments also relate to a method for parsing, and technical equipment for implementing the methods.
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公开(公告)号：US11442985B2
公开(公告)日：2022-09-13
申请号：US17274361
申请日：2019-09-13
摘要： The embodiments relate to a method comprising receiving visual data in a file format compatible with ISO base media file format; processing the visual data to detect one or more content elements; storing the detected one or more content elements and information on the used process as a metadata; and including the metadata to the media file in association with the visual data. The embodiments also relate to a technical equipment for implementing the method.
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公开(公告)号：US11323723B2
公开(公告)日：2022-05-03
申请号：US16077813
申请日：2017-02-14
发明人： Miska Hannuksela , Alireza Aminlou , Alireza Zare
IPC分类号： H04N19/167 , H04N19/176 , H04N19/184 , H04N19/169
摘要： A method comprising obtaining a full-picture track or bitstream including a motion-constrained tile set; and constructing a full-picture-compliant tile set track or bitstream on the basis of the motion-constrained tile set or generating instructions to construct a full-picture-compliant tile set track or bitstream on the basis of the motion-constrained tile set.
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公开(公告)号：US10979743B2
公开(公告)日：2021-04-13
申请号：US16737163
申请日：2020-01-08
发明人： Miska Hannuksela , Emre Aksu
IPC分类号： H04N19/46 , H04N21/231 , H04N21/2343 , H04N21/236 , H04N21/434 , H04N21/4402 , H04N21/845 , H04N21/8543 , H04N21/81 , H04N19/70 , H04N19/30
摘要： There are disclosed various methods, apparatuses and computer program products for video encoding. In some embodiments a method comprises including two or more entities into a container file, wherein each entity is a media item or a media track; and indicating in one of the following: the container file or a description of the container file; that the two or more entities are playable in the order they appear in the container file to achieve progressive refinement. In addition, a method, an apparatus and a computer program product for parsing information is provided.
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公开(公告)号：US10979727B2
公开(公告)日：2021-04-13
申请号：US16307626
申请日：2017-06-15
IPC分类号： H04N19/105 , H04N19/33 , H04N19/167 , H04N19/174 , H04N19/51 , H04N19/176 , H04N19/129 , H04N19/503
摘要： A method comprising: decoding, from a bitstream, a first encoded region of first picture into a first preliminary reconstructed region; forming a first reconstructed region from the first preliminary reconstructed region, wherein the forming comprises resampling and/or rearranging the first preliminary reconstructed region, wherein the rearranging comprises relocating, rotating and/or mirroring; and decoding at least a second region, wherein the first reconstructed region is used as a reference for prediction in decoding the at least second region and the second region either belongs to a second picture and is spatially collocated with the first reconstructed region or belongs to the first picture.
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公开(公告)号：US10715779B2
公开(公告)日：2020-07-14
申请号：US16420729
申请日：2019-05-23
发明人： Ying Chen , Miska Hannuksela
IPC分类号： H04N13/106 , H04N19/597 , H04N19/513 , H04N19/30 , H04N19/196 , H04N19/61 , H04N19/103 , H04N13/128
摘要： Joint coding of depth map video and texture video is provided, where a motion vector for a texture video is predicted from a respective motion vector of a depth map video or vice versa. For scalable video coding, depth map video is coded as a base layer and texture video is coded as an enhancement layer(s). Inter-layer motion prediction predicts motion in texture video from motion in depth map video. With more than one view in a bitstream (for multiview coding), depth map videos are considered monochromatic camera views and are predicted from each other. If joint multiview video model coding tools are allowed, inter-view motion skip is used to predict motion vectors of texture images from depth map images. Furthermore, scalable multiview coding is utilized, where inter-view prediction is applied between views in the same dependency layer, and inter-layer (motion) prediction is applied between layers in the same view.
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9.发明申请公开(公告)号：US20200162730A1
公开(公告)日：2020-05-21
申请号：US16750515
申请日：2020-01-23
发明人： Miska Hannuksela , Marja Salmimaa , Pekka Talmola
IPC分类号： H04N19/115 , H04N19/17 , H04N19/167 , H04N13/25 , H04N13/207 , H04N13/344 , H04N21/63 , H04N21/845 , H04N21/6587 , H04N21/2343 , H04N21/4728 , H04N19/597 , H04N13/111
摘要： The invention relates to a method and technical equipment, wherein the method comprises obtaining a picture sequence; selecting a first spatial region and a second spatial region within a picture area of pictures of the picture sequence, the second spatial region differing from the first spatial region; obtaining a first spatial region sequence, the first spatial region sequence comprising the first spatial region of the pictures of the picture sequence; obtaining a second spatial region sequence, the second spatial region sequence comprising the second spatial region of the pictures of the picture sequence; transmitting the first spatial region sequence at a first picture rate; and transmitting the second spatial region sequence at a second picture rate, the first picture rate being different from the second picture rate.
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公开(公告)号：US20190082184A1
公开(公告)日：2019-03-14
申请号：US16084352
申请日：2017-03-17
发明人： Miska Hannuksela
IPC分类号： H04N19/172 , H04N19/55 , H04N19/159 , H04N19/176
摘要： There is provided a method comprising encoding an uncompressed constituent frame into a first encoded picture, said encoding also resulting into a reconstructed first picture and said constituent frame having an effective picture area within the first reconstructed picture, performing either of the following as a part of said encoding: inserting at least one sample value outside the effective picture area to form a boundary extension for the constituent frame in the reconstructed first picture; or saturating or wrapping oversample locations outside the effective picture area to be within the effective picture area. There is also provided a method comprising receiving an encoded picture, decoding the encoded picture to form a reconstructed constituent frame of the picture having an effective picture area; and performing either of the following: filling an area outside the effective picture area to produce a padded reference picture, wherein the filled area forms a boundary extension; or determining that when referring to sample locations outside the effective picture area in decoding, said sample locations are saturated or wrapped over to be within the effective picture area.
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