公开(公告)号：WO2021249812A1

公开(公告)日：2021-12-16

申请号：PCT/EP2021/064567

申请日：2021-05-31

Applicant: INTERDIGITAL CE PATENT HOLDINGS, SAS

Inventor： LE ROUX, Jean ,  SALMON-LEGAGNEUR, Charles ,  LEGALLAIS, Yvon ,  AUMONT, Franck

IPC: H04N19/597 ,  H04N21/218 ,  H04N21/2343 ,  H04N19/46 ,  H04N5/232 ,  H04N21/81 ,  H04N13/161 ,  H04N21/234 ,  H04N21/235 ,  H04N21/84 ,  H04N13/261 ,  H04N21/21805 ,  H04N21/23412 ,  H04N21/234318 ,  H04N21/2353 ,  H04N21/816

Abstract: Methods, devices and stream are disclosed to encode and decode a volumetric content. At the encoding, the space of the volumetric content is divided in distinct sectors according to at least two different sectorizations. One atlas is generated for each sectorization or a single atlas is generated encoding all the sectorizations. At the decoding, a sectorization is selected according to the current direction and field of view, according to user's gaze navigation and according to prediction of the upcoming pose of the virtual camera controlled by the user. Sectors are selected according the selected sectorization and the current direction and field of view and only patches encoded in regions of the atlas associated with these sectors are accessed to generate the viewport image representative of the content seen from the current point of view.

公开(公告)号：WO2022032161A1

公开(公告)日：2022-02-10

申请号：PCT/US2021/045051

申请日：2021-08-06

Applicant: VID SCALE, INC.

Inventor： GUDUMASU, Srinivas ,  HAMZA, Ahmed

IPC: H04N21/218 ,  H04N21/44 ,  H04N21/81 ,  H04N21/21805 ,  H04N21/44012 ,  H04N21/8146 ,  H04N21/816

Abstract: A method and apparatus include receiving a timed‑metadata track identifying point cloud tiles corresponding to one or more spatial regions within a point cloud scene. A decoding device determines one or more point cloud tiles to be used for rendering an image. One or more geometry tile tracks are retrieved, via a communications network, corresponding to the determined one or more point cloud tiles. Each geometry tile track comprises point cloud geometry data for a respective tile. The retrieved geometry tile tracks are processed

公开(公告)号：WO2023274734A1

公开(公告)日：2023-01-05

申请号：PCT/EP2022/066379

申请日：2022-06-15

Applicant: NOKIA TECHNOLOGIES OY

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

IPC: G06F3/01 ,  H04N21/2343 ,  G06F3/011 ,  G06F3/012 ,  H04N21/21805 ,  H04N21/42201 ,  H04N21/440263 ,  H04N21/4621 ,  H04N21/816

Abstract: A method for packing a frame of immersive or omnidirectional content may include: determining one or more head motion statistics for rendering and packing immersive or omnidirectional content; determining a classification of a head motion based, at least partially, on the one or more determined head motion statistics; determining resolution(s) and/or a packing scheme based on determined viewport change rate, extent, change prediction/frequency, etc., as summarized by FIG. 6. If there is little or no head motion, the majority of a frame may be packed with high quality and resolution content of the viewport. If there is a greater amount of head motion, a smaller portion of the frame may be packed with high quality and resolution content of the viewport, and medium/low resolution content may be included with the frame that is associated with non-viewport content.

公开(公告)号：WO2022031727A1

公开(公告)日：2022-02-10

申请号：PCT/US2021/044379

申请日：2021-08-03

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： ATLURU, Chaitanya ,  NINAN, Ajit

IPC: H04N21/81 ,  H04N21/218 ,  H04N21/2662 ,  H04N21/2343 ,  H04N21/845 ,  H04N21/44 ,  H04N21/2387 ,  H04N19/177 ,  H04N19/114 ,  H04N19/167 ,  H04N19/597 ,  H04N19/70 ,  H04N21/21805 ,  H04N21/23439 ,  H04N21/44016 ,  H04N21/816 ,  H04N21/8451 ,  H04N21/8456

Abstract: A multi-view image stream encoded with primary and secondary image is accessed. Each primary image stream comprises groups of pictures (GOPs). Each secondary image stream comprises I-frames generated from a corresponding primary image stream. Viewpoint data collected in real time is received from a recipient decoding device to indicate that the viewer's viewpoint has changed from a specific time point. A camera is selected based on the viewer's changed viewpoint. It is determined whether the specific time point corresponds to a non-I-frame in a GOP of a primary image stream of the selected camera. If so, an I-frame from a secondary image stream corresponding to the primary image stream is transmitted to the recipient decoding device.

公开(公告)号：WO2023274879A1

公开(公告)日：2023-01-05

申请号：PCT/EP2022/067371

申请日：2022-06-24

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： VAREKAMP, Christiaan ,  VAN GEEST, Bartholomeus, Wilhelmus, Damianus

IPC: H04N21/218 ,  G06T15/00 ,  G06F3/0481 ,  H04N13/111 ,  H04N21/6587 ,  H04N13/279 ,  G06F3/011 ,  G06F3/012 ,  G06F3/04815 ,  G06T15/20 ,  G06T17/205 ,  H04N13/117 ,  H04N13/122 ,  H04N13/243 ,  H04N13/271 ,  H04N21/21805 ,  H04N21/816 ,  H04N23/90

Abstract: An apparatus comprises a receiver (601) receiving captured video data for a real world scene and being linked with a capture pose region. A store (615) stores a 3D mesh model of the real world scene. A renderer (605) generates an output image for a viewport for a viewing pose. The renderer (605) comprises a first circuit (607) arranged to generate first image data for the output image by projection of captured video data to the viewing pose and second circuit (609) arranged to determine second image data for a first region of the output image in response to the three-dimensional mesh model. A third circuit (611) generates the output image to include at least some of the first image data and to include the second image data for the first region. A fourth circuit (613) determines the first region based on a deviation of the viewing pose relative to the capture pose region.

公开(公告)号：WO2021256909A1

公开(公告)日：2021-12-23

申请号：PCT/KR2021/007765

申请日：2021-06-21

Applicant: 엘지전자 주식회사

Inventor： 오세진

IPC: H04N19/597 ,  H04N19/70 ,  H04N19/184 ,  H04N19/136 ,  H04N19/186 ,  H04N19/119 ,  G06T9/00 ,  H04N21/21805 ,  H04N21/23614 ,  H04N21/816 ,  H04N21/8456 ,  H04N21/85406

Abstract: 실시예들에 따른 포인트 클라우드 데이터 송신 방법은 포인트 클라우드 데이터를 인코딩하는 단계, 상기 인코드된 포인트 클라우드 데이터를 포함하는 비트스트림을 파일로 인캡슐레이션하는 단계, 및 상기 파일을 전송하는 단계를 포함하며, 상기 비트스트림은 상기 파일의 멀티플 트랙들에 포함되고, 상기 파일은 시그널링 데이터를 더 포함하고, 상기 시그널링 데이터는 적어도 하나의 파라미터 세트와 대체 그룹 관련 정보를 포함할 수 있다.

公开(公告)号：WO2021105552A8

公开(公告)日：2021-06-03

申请号：PCT/FI2020/050768

申请日：2020-11-17

Applicant: NOKIA TECHNOLOGIES OY

Inventor： AHSAN, Saba ,  CURCIO, Igor

IPC: H04N21/218 ,  H04N21/6587 ,  H04N21/4402 ,  H04N21/4728 ,  H04N19/167 ,  H04N7/15 ,  H04N13/10 ,  H04N19/162 ,  H04N19/164 ,  H04N19/46 ,  H04N19/597 ,  H04N21/21805 ,  H04N21/440245 ,  H04N21/44218 ,  H04N21/816 ,  H04N5/23238

Abstract: The embodiments relate to a method comprising generating a bitstream defining a presentation comprising an omnidirectional visual media content (710); encoding into the bitstream a parameter to indicate viewport-control options for viewing the presentation, wherein the viewport-control options comprises options controllable by a receiving device and options not-controllable by the receiving device and sending the bitstream to the receiver device (720); receiving one of the indicated viewport-control options from the receiver device as a response (730); streaming the presentation to the receiver device (740); when the response has comprised an indication on a viewport-control controllable by the receiving device, the method also comprises receiving information on viewport definitions from the receiver device during streaming of the presentation and adapting the presentation accordingly (750); when the response has comprised an indication on a viewport-control not- controllable by the receiving device, the presentation is streamed to the receiver device according to the viewport-control specified in the response (750).

公开(公告)号：WO2021248462A1

公开(公告)日：2021-12-16

申请号：PCT/CN2020/095849

申请日：2020-06-12

Applicant: INTEL CORPORATION ,  TONG, Xiaofeng ,  LI, Qiang ,  LI, Wenlong ,  LING, Chen ,  WANG, Yumeng

Inventor： TONG, Xiaofeng ,  LI, Qiang ,  LI, Wenlong ,  LING, Chen ,  WANG, Yumeng

IPC: H04N21/234 ,  H04N13/243 ,  G06T7/70 ,  H04N21/21805 ,  H04N21/2187 ,  H04N21/23418 ,  H04N21/2343 ,  H04N21/816 ,  H04N5/232

Abstract: A system (600) includes multiple cameras (104) disposed about an area (102), a processor (606), and a memory (608) communicatively coupled to the processor. The memory stores instructions that cause the processor to receive a set of video data (602) associated with a first change in acceleration and a second image frame (628) associated with a second change in acceleration. In an embodiment, the operations include generating a set of virtual camera actions (630) based on the first image frame and the second image frame.

公开(公告)号：WO2021202206A1

公开(公告)日：2021-10-07

申请号：PCT/US2021/023970

申请日：2021-03-24

Applicant: SONY INTERACTIVE ENTERTAINMENT INC. ,  STAFFORD, Jeffrey

Inventor： ADAMS, Justice ,  SARRIA, Jr., Mario ,  ARROYO PALACIOS, Jorge ,  RAJKUMAR, Nirmal ,  CHOW, Michael

IPC: A63F13/86 ,  A63F13/67 ,  A63F13/79 ,  H04N21/466 ,  H04N21/25 ,  A63F13/497 ,  A63F13/5375 ,  A63F13/55 ,  A63F13/69 ,  A63F13/85 ,  H04N21/21805 ,  H04N21/251 ,  H04N21/25841 ,  H04N21/25883 ,  H04N21/25891 ,  H04N21/44224 ,  H04N21/4781

Abstract: A method is provided, including the following operations: monitoring gameplay activity in a plurality of game sessions, wherein the monitoring includes, for each game session, analyzing the gameplay activity in said game session to predict future gameplay activity in said game session; identifying one or more characteristics of a plurality of spectators interacting with a virtual character, wherein each of the spectators interacting with the virtual character accesses, over a network, a channel that is attributed to the virtual character; through the channel, providing access to the spectators to spectate a selected game session that is one of the plurality of game sessions, selected based on the predicted future gameplay activity and based on the characteristics of the plurality of spectators.

公开(公告)号：WO2021144139A1

公开(公告)日：2021-07-22

申请号：PCT/EP2020/088035

申请日：2020-12-30

Applicant: NOKIA TECHNOLOGIES OY

Inventor： AHSAN, Saba ,  CURCIO, Igor Danilo Diego

IPC: H04N21/218 ,  H04N21/242 ,  H04N21/43 ,  H04N21/6587 ,  H04N21/81 ,  G02B2027/0138 ,  G02B2027/014 ,  G02B2027/0187 ,  G02B27/0172 ,  H04N21/21805 ,  H04N21/4302 ,  H04N21/816

Abstract: A method, apparatus, and computer program product provide for signaling of viewport orientation timing, such as in panoramic video delivery. In the context of a method, the method receives a first stream comprising panoramic video content based on a first viewport orientation. The method generates a feedback message comprising one or more updated parameters of a second viewport orientation and causes transmission of the feedback message. The method also receives a second stream comprising panoramic video content based on the second viewport orientation of the client device. The method further comprises determining a motion to high-quality delay value based on timestamps associated with the first and second streams and causing transmission of the motion to high-quality delay value.