发明申请
- 专利标题: Graphics Blending for High Dynamic Range Video
- 专利标题(中): 图形混合高动态范围视频
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申请号: US14631950申请日: 2015-02-26
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公开(公告)号: US20150256860A1公开(公告)日: 2015-09-10
- 发明人: Timo Kunkel , Robin Atkins , Tao Chen , Samir N. Hulyalkar , Jaclyn Anne Pytlarz
- 申请人: Dolby Laboratories Licensing Corporation
- 申请人地址: US CA San Francisco
- 专利权人: Dolby Laboratories Licensing Corporation
- 当前专利权人: Dolby Laboratories Licensing Corporation
- 当前专利权人地址: US CA San Francisco
- 主分类号: H04N21/2365
- IPC分类号: H04N21/2365 ; G06T11/60 ; G06T7/40 ; G06T5/00
摘要:
A method for merging graphics and high dynamic range video data is disclosed. In a video receiver, a display management process uses metadata to map input video data from a first dynamic range into the dynamic range of available graphics data. The remapped video signal is blended with the graphics data to generate a video composite signal. An inverse display management process uses the metadata to map the video composite signal to an output video signal with the first dynamic range. To alleviate perceptual tone-mapping jumps during video scene changes, a metadata transformer transforms the metadata to transformed so that on a television (TV) receiver metadata values transition smoothly between consecutive scenes. The TV receiver receives the output video signal and the transformed metadata to generate video data mapped to the dynamic range of the TV's display.
公开/授权文献
- US09230338B2 Graphics blending for high dynamic range video 公开/授权日:2016-01-05
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