Invention Application
US20130314495A1 Multi-Layer Backwards-Compatible Video Delivery for Enhanced Dynamic Range and Enhanced Resolution Formats 有权
多层向后兼容视频传输,增强动态范围和增强分辨率格式

  • Patent Title: Multi-Layer Backwards-Compatible Video Delivery for Enhanced Dynamic Range and Enhanced Resolution Formats
  • Patent Title (中): 多层向后兼容视频传输,增强动态范围和增强分辨率格式
  • Application No.: US13891997
    Application Date: 2013-05-10
  • Publication No.: US20130314495A1
    Publication Date: 2013-11-28
  • Inventor: Tao ChenSamir N. Hulyalkar
  • Applicant: Dolby Laboratories Licensing Corporation
  • Main IPC: H04N13/00
  • IPC: H04N13/00
Multi-Layer Backwards-Compatible Video Delivery for Enhanced Dynamic Range and Enhanced Resolution Formats
Abstract:
A sequence of enhanced dynamic range (EDR) images and a sequence of standard dynamic range images are encoded using a backwards-compatible SDR high-definition (HD) base layer and one or more enhancement layers. The EDR and SDR video signals may be of the same resolution (e.g., HD) or at different resolutions (e.g., 4K and HD) and are encoded using a dual-view-dual-layer (DVDL) encoder to generate a coded base layer (BL) and a coded enhancement layer (EL). The DVDL encoder includes a reference processing unit (RPU) which is adapted to compute a reference stream based on the coded BL stream. The RPU operations include post-processing, normalization, inverse normalization, and image registration. Decoders for decoding the coded BL and EL streams to generate a backwards compatible 2D SDR stream and additional 2D or 3D SDR or EDR streams, are also described.
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