Invention Grant
US09357197B2 Multi-layer backwards-compatible video delivery for enhanced dynamic range and enhanced resolution formats
有权
多层向后兼容的视频传输,用于增强动态范围和增强的分辨率格式
- Patent Title: Multi-layer backwards-compatible video delivery for enhanced dynamic range and enhanced resolution formats
- Patent Title (中): 多层向后兼容的视频传输,用于增强动态范围和增强的分辨率格式
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Application No.: US13891997Application Date: 2013-05-10
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Publication No.: US09357197B2Publication Date: 2016-05-31
- Inventor: Tao Chen , Samir N. Hulyalkar
- Applicant: Dolby Laboratories Licensing Corporation
- Applicant Address: US CA San Francisco
- Assignee: Dolby Laboratories Licensing Corporation
- Current Assignee: Dolby Laboratories Licensing Corporation
- Current Assignee Address: US CA San Francisco
- Main IPC: H04N13/00
- IPC: H04N13/00 ; H04N15/00 ; H04N19/597 ; H04N19/33

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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