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1. 发明公开

EP3731532A1 CONVERSION OF HIGH DYNAMIX RANGE (HDR) LUMINANCE 无效
公开(公告)号：EP3731532A1
公开(公告)日：2020-10-28
申请号：EP20179890.7
申请日：2016-02-08
申请人： Panasonic Intellectual Property Corporation of America
发明人： KOZUKA, Masayuki , HIGASHIDA, Takashi , MORI, Yoshihiro , HIRAKAWA, Haruyasu , TOMA, Tadamasa
IPC分类号： H04N21/431 , H04N21/435
摘要： Provided is a display method of displaying, on a display device, video of video data where luminance of video is defined by a first EOTF (Electro-Optical Transfer Function) corresponding to HDR (High Dynamic Range). The method includes: acquiring the video data; performing first conversion where the luminance of the video is converted to a luminance corresponding to a dynamic range of a third EOTF, where, with regard to a second EOTF that is part of the first EOTF and is the part of a luminance range where the peak luminance indicated by the peak luminance information included in the acquired video data is the maximum luminance, the dynamic range of luminance of the second EOTF is reduced with the maximum luminance of the second EOTF matching the displayable luminance of the display device, while maintaining the relative relationship of luminance of the second EOTF; and displaying the video on the display device using the result of the first conversion.

2. 发明授权

EP3306944B1 DISPLAY METHOD AND DISPLAY DEVICE 有权
公开(公告)号：EP3306944B1
公开(公告)日：2019-09-04
申请号：EP16799494.6
申请日：2016-02-08
申请人： Panasonic Intellectual Property Corporation of America
发明人： KOZUKA, Masayuki , HIGASHIDA, Takashi , MORI, Yoshihiro , HIRAKAWA, Haruyasu , TOMA, Tadamasa , NAKANISHI, Hirokazu
IPC分类号： H04N21/431 , H04N21/435 , H04N9/69 , G09G5/10 , G09G5/00

3. 发明公开

EP3297288A1 DISPLAY METHOD AND DISPLAY DEVICE 有权
标题翻译：显示方法和显示设备
公开(公告)号：EP3297288A1
公开(公告)日：2018-03-21
申请号：EP16792319.2
申请日：2016-02-08
申请人： Panasonic Intellectual Property Corporation of America
发明人： KOZUKA, Masayuki , HIGASHIDA, Takashi , MORI, Yoshihiro , HIRAKAWA, Haruyasu , TOMA, Tadamasa
IPC分类号： H04N21/431 , H04N21/435
CPC分类号： H04N5/57 , H04N5/20 , H04N9/646 , H04N11/002 , H04N21/431 , H04N21/435
摘要： Provided is a display method of displaying, on a display device, video of video data where luminance of video is defined by a first EOTF (Electro-Optical Transfer Function) corresponding to HDR (High Dynamic Range). The method includes: acquiring the video data; performing first conversion where the luminance of the video is converted to a luminance corresponding to a dynamic range of a third EOTF, where, with regard to a second EOTF that is part of the first EOTF and is the part of a luminance range where the peak luminance indicated by the peak luminance information included in the acquired video data is the maximum luminance, the dynamic range of luminance of the second EOTF is reduced with the maximum luminance of the second EOTF matching the displayable luminance of the display device, while maintaining the relative relationship of luminance of the second EOTF; and displaying the video on the display device using the result of the first conversion.
摘要翻译：提供一种在显示设备上显示视频数据的视频的显示方法，其中视频的亮度由对应于HDR（高动态范围）的第一EOTF（电光传输功能）定义。该方法包括：获取视频数据; 执行第一转换，其中视频的亮度被转换为与第三EOTF的动态范围相对应的亮度，其中关于作为第一EOTF的一部分的第二EOTF并且是第一EOTF的亮度范围的一部分由所获取的视频数据中包括的峰值亮度信息指示的亮度是最大亮度，第二EOTF的亮度的动态范围随着第二EOTF的最大亮度与显示装置的可显示亮度相匹配而减小，同时保持相对第二个EOTF的亮度关系; 以及使用第一转换的结果在显示设备上显示视频。

4. 发明公开

EP3595322A1 DISPLAY METHOD AND DISPLAY DEVICE 有权
公开(公告)号：EP3595322A1
公开(公告)日：2020-01-15
申请号：EP19187293.6
申请日：2016-02-08
申请人： Panasonic Intellectual Property Corporation of America
发明人： KOZUKA, Masayuki , HIGASHIDA, Takashi , MORI, Yoshihiro , HIRAKAWA, Haruyasu , TOMA, Tadamasa , NAKANISHI, Hirokazu
IPC分类号： H04N21/431 , H04N21/435 , H04N9/69 , G09G5/10 , G09G5/00
摘要： Provided is a display method of displaying, on a display device, video of video data where luminance of video is defined by a first EOTF (Electro-Optical Transfer Function) indicating a correlation of HDR (High Dynamic Range) luminance and code values. The method includes: acquiring the video data; performing, regarding each of a plurality of pixels making up the video included in the acquired video data, first determining of determining whether or not luminance of that pixel exceeds a first predetermined luminance; performing, regarding each of the plurality of pixels, dual tone mapping where luminance of that pixel is reduced by a different format in a case of the luminance of the pixel being found to exceed the first predetermined luminance as a result of the first determining, and a case of the luminance of the pixel being found to be equal to or lower than the first predetermined luminance; and displaying the video on the display device using the results of the dual tone mapping.

5. 发明公开

EP3306944A1 DISPLAY METHOD AND DISPLAY DEVICE 有权
标题翻译：显示方法和显示设备
公开(公告)号：EP3306944A1
公开(公告)日：2018-04-11
申请号：EP16799494.6
申请日：2016-02-08
申请人： Panasonic Intellectual Property Corporation of America
发明人： KOZUKA, Masayuki , HIGASHIDA, Takashi , MORI, Yoshihiro , HIRAKAWA, Haruyasu , TOMA, Tadamasa , NAKANISHI, Hirokazu
IPC分类号： H04N21/431 , H04N21/435
CPC分类号： G06T5/009 , G06T5/50 , G06T2207/10016 , G06T2207/10024 , G06T2207/20208 , G09G5/00 , G09G5/10 , G09G2320/0613 , G09G2320/0673 , G09G2360/16 , G09G2370/12 , H04N9/69 , H04N21/431 , H04N21/435
摘要： Provided is a display method of displaying, on a display device, video of video data where luminance of video is defined by a first EOTF (Electro-Optical Transfer Function) indicating a correlation of HDR (High Dynamic Range) luminance and code values. The method includes: acquiring the video data; performing, regarding each of a plurality of pixels making up the video included in the acquired video data, first determining of determining whether or not luminance of that pixel exceeds a first predetermined luminance; performing, regarding each of the plurality of pixels, dual tone mapping where luminance of that pixel is reduced by a different format in a case of the luminance of the pixel being found to exceed the first predetermined luminance as a result of the first determining, and a case of the luminance of the pixel being found to be equal to or lower than the first predetermined luminance; and displaying the video on the display device using the results of the dual tone mapping.
摘要翻译：提供一种在显示装置上显示视频数据的视频的显示方法，其中视频的亮度由指示HDR（高动态范围）亮度和代码值的相关性的第一EOTF（电光传输功能）定义。该方法包括：获取视频数据; 关于构成包括在所获取的视频数据中的视频的多个像素中的每一个，执行确定该像素的亮度是否超过第一预定亮度的第一确定; 针对所述多个像素中的每一个，执行双色调映射，其中，在作为第一确定的结果，发现像素的亮度超过第一预定亮度的情况下，该像素的亮度以不同的格式减小，以及发现像素的亮度等于或低于第一预定亮度的情况; 以及使用双色调映射的结果在显示设备上显示视频。

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