- 专利标题: Video display system and video display method
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申请号: US16331456申请日: 2018-02-26
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公开(公告)号: US11032448B2公开(公告)日: 2021-06-08
- 发明人: Masaya Yamamoto , Masayuki Kozuka , Yoshiichiro Kashiwagi , Toshiroh Nishio , Kazuhiko Kouno , Hiroshi Yahata , Takeshi Hirota , Yoshihiro Mori
- 申请人: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- 申请人地址: JP Osaka
- 专利权人: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- 当前专利权人: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- 当前专利权人地址: JP Osaka
- 代理机构: McDermott Will and Emery LLP
- 国际申请: PCT/JP2018/006856 WO 20180226
- 国际公布: WO2018/235337 WO 20181227
- 主分类号: H04N5/445
- IPC分类号: H04N5/445 ; H04N5/20 ; H04N21/431 ; H04N21/4402 ; H04N9/82 ; H04N5/66 ; H04N21/47 ; G06T5/00 ; G06T5/20 ; H04N9/793
摘要:
A video display system includes: a tone mapping processor that performs a tone mapping process of converting a luminance of a video by using conversion characteristics according to a maximum luminance of the video; and a display that displays the video that has undergone the tone mapping process. The tone mapping processor switches between a first tone mapping process of dynamically changing the conversion characteristics according to a time-dependent change in the maximum luminance of the video and a second tone mapping process that is performed using constant conversion characteristics irrespective of the time-dependent change in the maximum luminance of the video.
公开/授权文献
- US20190222721A1 VIDEO DISPLAY SYSTEM AND VIDEO DISPLAY METHOD 公开/授权日:2019-07-18
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