公开(公告)号：WO2021123072A1

公开(公告)日：2021-06-24

申请号：PCT/EP2020/086900

申请日：2020-12-17

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： SONNEVELDT, Bartolomeus, Wilhelmus, Damianus ,  VAREKAMP, Christiaan

IPC: H04N21/2343 ,  H04N21/2365 ,  H04N21/4728 ,  H04N21/81 ,  H04N13/139 ,  H04N13/161 ,  H04N13/178 ,  H04N21/218 ,  H04N19/597 ,  H04N21/4402 ,  H04N21/2662 ,  H04N13/243 ,  G06N3/08 ,  H04N19/154 ,  H04N19/59 ,  H04N13/128 ,  G06T5/30 ,  H04N13/271 ,  H04N19/117 ,  G06T9/001 ,  G06T9/002 ,  H04N13/117 ,  H04N13/194 ,  H04N2213/003

Abstract: Methods of encoding and decoding video data are provided. In an encoding method, source video data comprising one or more source views is encoded into a video bitstream. Depth data of at least one of the source views is nonlinearly filtered and downsampled prior to encoding. After decoding, the decoded depth data is up-sampled and nonlinearly filtered.

公开(公告)号：WO2020064376A1

公开(公告)日：2020-04-02

申请号：PCT/EP2019/074606

申请日：2019-09-16

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： SONNEVELDT, Bartolomeus, Wilhelmus, Damianus ,  VAREKAMP, Christiaan

IPC: H04N21/218 ,  H04N19/597

Abstract: An apparatus comprises a processor (301) providing a plurality of reference video streams for a plurality of reference viewpoints for a scene. A receiver (305) receives a viewpoint request from a remote client where the viewpoint request is indicative of a requested viewpoint. A generator (303) generates an output video stream comprising a first video stream with frames from a first reference video stream and a second video stream with frames from a second reference video stream. The frames of the second video stream are differentially encoded relative to the frames of the first video stream. A controller (307) selects the reference video stream for the first and second video streams in response to the viewpoint request and may be arranged to swap the reference video streams between being non-differentially encoded and being differentially encoded when the viewpoint request meets a criterion.

公开(公告)号：WO2013164778A1

公开(公告)日：2013-11-07

申请号：PCT/IB2013/053461

申请日：2013-05-02

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： CHAMBERLIN, Wilhelmus, Hendrikus, Alfonsus, BRULS ,  SONNEVELDT, Bartolomeus, Wilhelmus, Damianus

IPC: H04N13/00 ,  G06T7/00

CPC classification number: H04N13/111 ,  H04N13/128 ,  H04N13/144

Abstract: A 3D video device (50) processes a video signal (41) that has at least a first image to be displayed on a 3D display. The 3D display (63) requires multiple views for creating a 3D effect for a viewer, such as an autostereoscopic display. The 3D video device has a processor (52) for determining a processed view based on the 3D image data adapted by a parameter for targeting the multiple views to the 3D display, and calculating a quality metric indicative of perceived 3D image quality. The quality metric is based on a combination of image values of the processed view and a further view. A preferred value for the parameter is determined based on repeatedly determining and calculating using different values. Advantageously, the quality metric predicts the perceived image quality based on a combination of image content and disparity.

Abstract translation: 3D视频设备（50）处理具有要在3D显示器上显示的至少第一图像的视频信号（41）。 3D显示器（63）需要多个视图来为诸如自动立体显示器的观看者创建3D效果。 3D视频设备具有处理器（52），用于基于由用于将多个视图定向到3D显示器的参数来适应的3D图像数据来确定处理视图，以及计算指示感知的3D图像质量的质量度量。 质量度量基于处理视图的图像值和另一视图的组合。 基于使用不同的值重复确定和计算，确定参数的优选值。 有利地，质量度量基于图像内容和视差的组合来预测所感知的图像质量。