Invention Grant
- Patent Title: Dual-layer backwards-compatible progressive video delivery
- Patent Title (中): 双层向后兼容逐行视频传输
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Application No.: US14368640Application Date: 2012-12-13
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Publication No.: US09049445B2Publication Date: 2015-06-02
- Inventor: Tao Chen , Hariharan Ganapathy-Kathirvelu , Samir N. Hulyalkar , Gopi Lakshminarayanan
- 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
- International Application: PCT/US2012/069426 WO 20121213
- International Announcement: WO2013/103490 WO 20130711
- Main IPC: H04N7/12
- IPC: H04N7/12 ; H04N11/02 ; H04N11/04 ; H04N19/172 ; H04N7/01 ; H04N13/00 ; H04N19/30 ; H04N19/112 ; H04N19/187 ; H04N19/85 ; H04N19/59 ; H04N19/34 ; H04N19/597

Abstract:
Given an input progressive sequence, a video encoder creates a dual-layer stream that combines a backwards-compatible interlaced video stream layer with an enhancement layer to reconstruct full-resolution progressive video. Given two consecutive frames in the input progressive sequence, vertical processing generates a top field-bottom field (TFBF) frame in a base layer (BL) TFBF sequence, and horizontal processing generates a side-by-side (SBS) frame in an enhancement layer (EL) SBS video sequence. The BL TFBF and the EL SBS sequences are compressed together to create a coded, backwards compatible output stream.
Public/Granted literature
- US20140376612A1 Dual-Layer Backwards-Compatible Progressive Video Delivery Public/Granted day:2014-12-25
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