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公开(公告)号：EP3266208B1
公开(公告)日：2019-05-08
申请号：EP16720208.4
申请日：2016-03-01
发明人： FROEHLICH, Jan , SU, Guan-Ming , ATKINS, Robin , DALY, Scott , MILLER, Jon Scott
IPC分类号： H04N19/136 , H04N19/98 , H04N19/182 , H04N19/156 , H04N19/132 , H04N19/124 , H04N19/117
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2.发明公开
公开(公告)号：EP3266208A1
公开(公告)日：2018-01-10
申请号：EP16720208.4
申请日：2016-03-01
发明人： FROEHLICH, Jan , SU, Guan-Ming , ATKINS, Robin , DALY, Scott , MILLER, Jon Scott
IPC分类号： H04N19/136 , H04N19/98
CPC分类号： H04N19/124 , H04N19/117 , H04N19/132 , H04N19/136 , H04N19/154 , H04N19/156 , H04N19/182 , H04N19/98
摘要： A content-adaptive quantizer processor receives an input image with an input bit depth. A noise-mask generation process is applied to the input image to generate a noise mask image which characterizes each pixel in the input image in terms of its perceptual relevance in masking quantization noise. A noise mask histogram is generated based on the input image and the noise mask image. A masking-noise level to bit-depth function is applied to the noise mask histogram to generate minimal bit depth values for each bin in the noise mask histogram. A codeword mapping function is generated based on the input bit depth, a target bit depth, and the minimal bit depth values. The codeword mapping function is applied to the input image to generate an output image in the target bit depth.
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公开(公告)号：EP4416551A1
公开(公告)日：2024-08-21
申请号：EP22800951.0
申请日：2022-10-14
发明人： JACKSON, John David , WAINWRIGHT, Nathan Shawn , PORADISH, Frank Joseph , HENNIGAN, Darren , DEWALD, Duane Scott , PERTIERRA, Juan Pablo , RICHARDS, Martin J. , LIPPEY, Barret , MILLER, Jon Scott , DAVIES, Trevor , VAN KESSEL, Peter Francis , CAMPBELL, Douglas Reid Boyd
CPC分类号： G02B27/1026 , G02B27/18 , G02B9/64 , G02B13/009 , G02B5/04 , G02B27/126 , G02B27/149 , G02B26/008
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公开(公告)号：EP3800542A1
公开(公告)日：2021-04-07
申请号：EP20203561.4
申请日：2012-12-06
摘要： A handheld imaging device has a data receiver that is configured to receive reference encoded image data. The data includes reference code values, which are encoded by an external coding system. The reference code values represent reference gray levels, which are being selected using a reference grayscale display function that is based on perceptual non-linearity of human vision adapted at different light levels to spatial frequencies. The imaging device also has a data converter that is configured to access a code mapping between the reference code values and device-specific code values of the imaging device. The device-specific code values are configured to produce gray levels that are specific to the imaging device. Based on the code mapping, the data converter is configured to transcode the reference encoded image data into device-specific image data, which is encoded with the device-specific code values.
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公开(公告)号：EP3974956A2
公开(公告)日：2022-03-30
申请号：EP21197681.6
申请日：2012-12-06
摘要： A handheld imaging device has a data receiver that is configured to receive reference encoded image data. The data includes reference code values, which are encoded by an external coding system. The reference code values represent reference gray levels, which are being selected using a reference grayscale display function that is based on perceptual non-linearity of human vision adapted at different light levels to spatial frequencies. The imaging device also has a data converter that is configured to access a code mapping between the reference code values and device-specific code values of the imaging device. The device-specific code values are configured to produce gray levels that are specific to the imaging device. Based on the code mapping, the data converter is configured to transcode the reference encoded image data into device-specific image data, which is encoded with the device-specific code values.
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6.发明公开DEVICE AND METHOD OF IMPROVING THE PERCEPTUAL LUMINANCE NONLINEARITY-BASED IMAGE DATA EXCHANGE ACROSS DIFFERENT DISPLAY CAPABILITIES 审中-公开装置和方法用于提高图像数据交换基于以下两者之间不同的显示功能的锻炼相关LUMINANZNICHTLINEARITÄT
公开(公告)号：EP3079055A1
公开(公告)日：2016-10-12
申请号：EP16166823.1
申请日：2012-12-06
CPC分类号： G09G5/10 , G06F3/14 , G09G5/005 , G09G2320/0276 , G09G2320/0285 , G09G2320/04 , G09G2340/0428 , G09G2340/0435 , G09G2340/06 , G09G2340/14 , G09G2370/04 , G09G2370/08 , G09G2380/08 , H04N19/40
摘要： A handheld imaging device has a data receiver that is configured to receive reference encoded image data. The data includes reference code values, which are encoded by an external coding system. The reference code values represent reference gray levels, which are being selected using a reference grayscale display function that is based on perceptual non-linearity of human vision adapted at different light levels to spatial frequencies. The imaging device also has a data converter that is configured to access a code mapping between the reference code values and device-specific code values of the imaging device. The device-specific code values are configured to produce gray levels that are specific to the imaging device. Based on the code mapping, the data converter is configured to transcode the reference encoded image data into device-specific image data, which is encoded with the device-specific code values.
摘要翻译： 一种手持式成像装置具有：数据接收器确实被配置为接收基准数据编码的图像。 该数据包括基准码的值，这是由在外部编码系统编码。参考代码值代表参考灰度级，采用了参考灰度显示功能并基于在不同的光人类视觉angepasst的感知的非线性正为其选择 水平空间频率。 因此，该成像装置具有数据转换器也被配置为访问所述基准代码值和所述成像装置的设备专用代码值之间的代码映射。 特定于设备的代码值被配置成产生灰度级做是特定于成像装置。 基于代码的映射，所述数据转换器被配置为将参考编码的图像数据转码为设备特定的图像数据时，所有这一切都被编码与所述特定于设备的代码值。
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公开(公告)号：EP3514677B1
公开(公告)日：2020-11-04
申请号：EP19155297.5
申请日：2012-12-06
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公开(公告)号：EP3079055B1
公开(公告)日：2019-03-20
申请号：EP16166823.1
申请日：2012-12-06
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公开(公告)号：EP3974956A3
公开(公告)日：2022-08-03
申请号：EP21197681.6
申请日：2012-12-06
摘要： A handheld imaging device has a data receiver that is configured to receive reference encoded image data. The data includes reference code values, which are encoded by an external coding system. The reference code values represent reference gray levels, which are being selected using a reference grayscale display function that is based on perceptual non-linearity of human vision adapted at different light levels to spatial frequencies. The imaging device also has a data converter that is configured to access a code mapping between the reference code values and device-specific code values of the imaging device. The device-specific code values are configured to produce gray levels that are specific to the imaging device. Based on the code mapping, the data converter is configured to transcode the reference encoded image data into device-specific image data, which is encoded with the device-specific code values.
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10.发明公开
公开(公告)号：EP3800543A2
公开(公告)日：2021-04-07
申请号：EP20203810.5
申请日：2012-12-06
摘要： A handheld imaging device has a data receiver that is configured to receive reference encoded image data. The data includes reference code values, which are encoded by an external coding system. The reference code values represent reference gray levels, which are being selected using a reference grayscale display function that is based on perceptual non-linearity of human vision adapted at different light levels to spatial frequencies. The imaging device also has a data converter that is configured to access a code mapping between the reference code values and device-specific code values of the imaging device. The device-specific code values are configured to produce gray levels that are specific to the imaging device. Based on the code mapping, the data converter is configured to transcode the reference encoded image data into device-specific image data, which is encoded with the device-specific code values.
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