公开(公告)号：US12225178B2

公开(公告)日：2025-02-11

申请号：US17641843

申请日：2020-09-10

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Bart Kroon

IPC: H04N13/00 ,  H04N13/128 ,  H04N13/161 ,  H04N13/178 ,  H04N19/00 ,  H04N19/136 ,  H04N19/42 ,  H04N19/86

Abstract: Methods of encoding and decoding depth data are disclosed. In an encoding method, depth values and occupancy data are both encoded into a depth map. The method adapts how the depth values and occupancy data are converted to map values in the depth map. For example, it may adaptively select a threshold, above or below which all values represent unoccupied pixels. By adapting how the depth and occupancy are encoded, based on analysis of the depth values, the method can enable more effective encoding and transmission of the depth data and occupancy data. The encoding method outputs metadata defining the adaptive encoding. This metadata can be used by a corresponding decoding method, to decode the map values. Also provided are an encoder and a decoder for depth data, and a corresponding bitstream, comprising a depth map and its associated metadata.

公开(公告)号：US12147730B2

公开(公告)日：2024-11-19

申请号：US18136902

申请日：2023-04-20

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Christiaan Varekamp ,  Jeroen Gerardus Henricus Koppens ,  Bart Kroon ,  Nathan Souviraa-Labastie ,  Arnoldus Werner Johannes Oomen

IPC: G06F3/16 ,  H04L12/18 ,  H04S7/00

Abstract: A distribution system comprises an audio server (101) for receiving incoming audio from remote clients (103) and for transmitting audio derived from the incoming audio to the remote clients (103). An audio apparatus comprises an audio a receiver (401) which receives data comprising: audio data for a plurality of audio components representing audio from a remote client of the plurality of remote clients; and proximity data for at least one of the audio components. The proximity data is indicative of proximity between remote clients. A generator (403) of the apparatus generates an audio mix from the audio components in response to the proximity data. For example, an audio component indicated to be proximal to a remote client may be excluded from an audio mix for that remote client.

公开(公告)号：US20240340398A1

公开(公告)日：2024-10-10

申请号：US18290838

申请日：2022-08-01

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Christiaan Varekamp ,  Bart Kroon

IPC: H04N13/178 ,  H04N13/111 ,  H04N13/156 ,  H04N13/194 ,  H04N13/271 ,  H04N13/282 ,  H04N19/46

CPC classification number: H04N13/178 ,  H04N13/111 ,  H04N13/156 ,  H04N13/194 ,  H04N13/271 ,  H04N13/282 ,  H04N19/46

Abstract: A method for transmitting multi-view image frame data. The method comprises obtaining multi-view components representative of a scene generated from a plurality of sensors, wherein each multi-view component corresponds to a sensor and wherein at least one of the multi-view components includes a depth component and at least one of the multi-view components does not include a depth component. A virtual sensor pose is obtained for each sensor in a virtual scene, wherein the virtual scene is a virtual representation of the scene and wherein the virtual sensor pose is a virtual representation of the pose of the sensor in the scene when generating the corresponding multi-view component. Sensor parameter metadata is generated for the multi-view components, wherein the sensor parameter metadata contains extrinsic parameters for the multi-view components and the extrinsic parameters contain at least the virtual sensor pose of a sensor for each of the corresponding multi-view components. The extrinsic parameters enable the generation of additional depth components by warping the depth components based on their corresponding virtual sensor pose and a target position in the virtual scene. The multi-view components and the sensor parameter metadata is thus transmitted.

公开(公告)号：US12069334B2

公开(公告)日：2024-08-20

申请号：US18038719

申请日：2021-12-03

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Bart Kroon ,  Bartolomeus Wilhelmus Damianus Van Geest

IPC: H04N21/437 ,  H04N21/2343 ,  H04N21/431 ,  H04N21/81

CPC classification number: H04N21/437 ,  H04N21/234363 ,  H04N21/431 ,  H04N21/816

Abstract: A method for transitioning from a first set of video tracks, VT1, to a second set of video tracks, VT2, when rendering a multi-track video, wherein each video track has a corresponding rendering priority. The method comprises receiving an instruction to transition from a first set of first video tracks VT1 to a second set of second video tracks VT2, obtaining the video tracks VT2 and, if the video tracks VT2 are different to the video tracks VT1, applying a lowering function to the rendering priority of one or more of the video tracks in the first set of video tracks VT1 and/or an increase function to the rendering priority of one or more video tracks in the second set of video tracks VT2. The lowering function and the increase function decrease and increase the rendering priority over time respectively. The rendering priority is used in the determination of the weighting of a video track and/or elements of a video track used to render a multi-track video.

公开(公告)号：US11823323B2

公开(公告)日：2023-11-21

申请号：US17435066

申请日：2020-02-29

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Bart Kroon

IPC: G06T15/20 ,  G06T17/00

CPC classification number: G06T15/205 ,  G06T17/005 ,  G06T2210/61

Abstract: An image source (407) provides an image divided into segments of different sizes with only a subset of these comprising image data. A metadata generator (409) generates metadata structured in accordance with a tree data structure where each node is linked to a segment of the image. Each node is a branch node linking the parent node to child nodes linked to segments that are subdivisions of the parent node, or a leaf node which has no children. A leaf node is either an unused leaf node linked to a segment for which the first image comprises no image data or a used leaf node linked to a segment for which the first image comprises image data. The metadata indicates whether each node is a branch node, a used leaf node, or an unused leaf node. An image signal generator (405) generates an image signal comprising the image data of the first image and the metadata.

公开(公告)号：US20220394229A1

公开(公告)日：2022-12-08

申请号：US17641843

申请日：2020-09-10

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Bart Kroon

IPC: H04N13/161 ,  H04N13/178 ,  H04N13/128 ,  H04N19/136 ,  H04N19/42 ,  H04N19/86

Abstract: Methods of encoding and decoding depth data are disclosed. In an encoding method, depth values and occupancy data are both encoded into a depth map. The method adapts how the depth values and occupancy data are converted to map values in the depth map. For example, it may adaptively select a threshold, above or below which all values represent unoccupied pixels. By adapting how the depth and occupancy are encoded, based on analysis of the depth values, the method can enable more effective encoding and transmission of the depth data and occupancy data. The encoding method outputs metadata defining the adaptive encoding. This metadata can be used by a corresponding decoding method, to decode the map values. Also provided are an encoder and a decoder for depth data, and a corresponding bitstream, comprising a depth map and its associated metadata.

公开(公告)号：US11314103B2

公开(公告)日：2022-04-26

申请号：US16898825

申请日：2020-06-11

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Mark Thomas Johnson ,  Bart Kroon

IPC: G02B30/27 ,  G02B30/35

Abstract: An autostereoscopic display device uses an electroluminescent display. A set of pixels is provided beneath view forming elements (such as lenses), with a plurality of pixels across the view forming element width direction. The pixels are arranged with at least two different angular orientations with respect to the substrate. The out-coupling performance is improved by arranging for the light emission direction to be substantially perpendicular to the desired emitting surface of the view forming elements.

公开(公告)号：US11218690B2

公开(公告)日：2022-01-04

申请号：US16623838

申请日：2018-06-21

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Bart Kroon ,  Wiebe De Haan

IPC: H04N13/302

Abstract: An apparatus for generating an image comprises a receiver (101) which receives 3D image data providing an incomplete representation of a scene. A view vector source (103) provides a rendering view vector indicative of a rendering viewpoint for the image. A renderer (105) renders a first region of an intermediate image for the rendering view vector based on image data from the 3D image data. An extrapolator (107) extrapolates the 3D image data into a second adjoining region of the intermediate image with the 3D image not comprising image data for the second region. A blur processor (109) generates the image in response to applying a spatially varying blurring to the intermediate image where a degree of blurring is higher in a transitional region between the first region and the second region than in an internal area of the first region.

公开(公告)号：US10931928B2

公开(公告)日：2021-02-23

申请号：US16497498

申请日：2018-03-02

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Christiaan Varekamp ,  Bart Kroon

IPC: H04N13/117 ,  G06K9/00 ,  G06K9/20

Abstract: An apparatus comprising a store (101) for storing route data for a set of routes in an N-dimensional space where each route of the set of routes is associated with a video item including frames comprising both image and depth information. An input (105) receives a viewer position indication and a selector (107) selects a first route of the set of routes in response to a selection criterion dependent on a distance metric dependent on the viewer position indication and positions of the routes of the set of routes. A retriever (103, 109) retrieves a first video item associated with the first route from a video source (203). An image generator (111) generates at least one view image for the viewer position indication from a first set of frames from the first video item. In the system, the selection criterion is biased towards a currently selected route relative to other routes of the set of routes.

公开(公告)号：US10459238B2

公开(公告)日：2019-10-29

申请号：US15532131

申请日：2015-12-21

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Olexandr Valentynovych Vdovin ,  Bart Kroon ,  Mark Thomas Johnson ,  Eibert Gerjan Van Putten

IPC: G02B27/22 ,  H04N13/305 ,  H04N13/324 ,  H04N13/317 ,  H04N13/307

Abstract: An autostereoscopic display comprises a pixelated display panel comprising an array of single color pixels or an array of sub-pixels of different colors and a view forming arrangement comprising an array of lens elements. The pixels form a hexagonal grid, and the lenses also repeat in a hexagonal grid. A vector p is defined which relates to a mapping between the pixel grid and the lens grid. Regions in the two dimensional space for this vector p are identified which give good or poor banding performance, and the better banding performance regions are selected.