公开(公告)号：US20170186141A1

公开(公告)日：2017-06-29

申请号：US14998189

申请日：2015-12-26

申请人： Hyeong-Seok Victor Ha ,  Yi-Jen Chiu ,  Yi-Chu Wang

发明人： Hyeong-Seok Victor Ha ,  Yi-Jen Chiu ,  Yi-Chu Wang

IPC分类号： G06T5/00 ,  H04N9/64

CPC分类号： G06T5/009 ,  G06T2207/10024 ,  G06T2207/20208 ,  H04N9/646 ,  H04N9/67

摘要： Systems, apparatus, articles, and methods are described below including operations for video tone mapping to convert High Dynamic Range (HDR) content to Standard Dynamic Range (SDR) content.

公开(公告)号：US09665948B2

公开(公告)日：2017-05-30

申请号：US14547380

申请日：2014-11-19

申请人： Quanta Computer Inc.

发明人： Keng-Sheng Lin ,  Chung-Te Li

IPC分类号： G06T7/40 ,  G06T11/00 ,  H04N9/67 ,  H04N9/68

CPC分类号： G06T7/44 ,  G06T11/001 ,  H04N9/67 ,  H04N9/68

摘要： A saturation compensation method is provided. The method includes the steps of: retrieving an input image; performing at least one first image process on the input image to generate a first image; calculating saturation corresponding to each pixel in the input image; and performing a saturation compensation process on the first image according to the input image and the saturation to generate an output image.

公开(公告)号：US09613407B2

公开(公告)日：2017-04-04

申请号：US14755755

申请日：2015-06-30

申请人： Dolby Laboratories Licensing Corporation

发明人： Robin Atkins ,  Samir N. Hulyalkar

IPC分类号： G09G5/10 ,  G09G5/02 ,  G06T5/00 ,  H04N1/60 ,  H04N9/67 ,  G06K9/52 ,  H04N9/68

CPC分类号： G06T5/007 ,  G06K9/52 ,  G06T2207/20208 ,  G09G5/02 ,  G09G5/10 ,  G09G2320/0271 ,  G09G2340/06 ,  G09G2370/04 ,  H04N1/60 ,  H04N1/6027 ,  H04N9/67 ,  H04N9/68

摘要： A display management processor receives an input image with enhanced dynamic range to be displayed on a target display which has a different dynamic range than a reference display. The input image is first transformed into a perceptually-quantized (PQ) color space. A non-linear mapping function generates a tone-mapped intensity image in response to the characteristics of the source and target display and a measure of the intensity of the PQ image. After a detail-preservation step which may generate a filtered tone-mapped intensity image, an image-adaptive intensity and saturation adjustment step generates an intensity adjustment factor and a saturation adjustment factor as functions of the measure of intensity and saturation of the PQ image, which together with the filtered tone-mapped intensity image are used to generate the output image. Examples of the functions to compute the intensity and saturation adjustment factors are provided.

公开(公告)号：US09602709B2

公开(公告)日：2017-03-21

申请号：US14141967

申请日：2013-12-27

申请人： CANON KABUSHIKI KAISHA

发明人： Kotaro Kitajima

IPC分类号： H04N5/232 ,  G11B27/30 ,  H04N9/67

CPC分类号： H04N5/23206 ,  G11B27/3027 ,  H04N9/67

摘要： A control method of an image pickup apparatus has: an output step of outputting a photographed image to an external image processing apparatus; a transmission step of transmitting a transmission request of parameter information of an image processing to the photographed image which is generated by the external image processing apparatus, to the external image processing apparatus; a receiving step of receiving the parameter information from the external image processing apparatus; a recording step of recording the received parameter information in relation the photographed image; a detection step of detecting an operation in the image pickup apparatus; and a control step of executing a processing for transmitting the transmission request of the parameter information to the external image processing apparatus in the transmission step when the predetermined operation is detected in the detection step.

公开(公告)号：US20170032725A1

公开(公告)日：2017-02-02

申请号：US15052220

申请日：2016-02-24

申请人： Xiaomi Inc.

发明人： Guosheng LI ,  Anyu LIU ,  Zhengdong XIAO

IPC分类号： G09G3/20

CPC分类号： G09G3/2003 ,  G09G2320/0242 ,  G09G2320/0613 ,  G09G2320/0666 ,  G09G2340/06 ,  H04N1/6063 ,  H04N9/67

摘要： Aspects of the disclosure provide a method for setting a color gamut mode for driving a display. The method includes acquiring a first picture to be displayed on the display; determining a picture type of the first picture, the picture type being associated with a predetermined color gamut mode; acquiring a current color gamut mode currently adopted for driving the display; and when the picture type of the first picture does not match the current color gamut mode, switching the color gamut mode for driving the display from the current color gamut mode to the predetermined color gamut mode.

摘要翻译： 本公开的方面提供了一种用于设置用于驱动显示器的色域模式的方法。 该方法包括获取要在显示器上显示的第一图像; 确定所述第一图像的图像类型，所述图像类型与预定色域模式相关联; 获取当前用于驱动显示器的当前色域模式; 并且当第一图像的图像类型与当前色域模式不匹配时，将用于将显示器驱动的色域模式从当前色域模式切换到预定色域模式。

公开(公告)号：US09554102B2

公开(公告)日：2017-01-24

申请号：US14133381

申请日：2013-12-18

申请人： STMicroelectronics S.R.L.

发明人： Filippo Naccari ,  Angelo Bosco ,  Mirko Guarnera

IPC分类号： G06T3/00 ,  G06T5/00 ,  G09G5/02 ,  G09G1/28 ,  G09G5/06 ,  H04N1/60 ,  H04N5/58 ,  H04N9/73 ,  H04N3/14 ,  H04N9/31 ,  H04N9/67

CPC分类号： H04N9/3173 ,  H04N9/3182 ,  H04N9/3194 ,  H04N9/67

摘要： An embodiment relates to a method for converting a digital image from a first color space to a second color space. The first color space is associated with an electronic source device, and the second color space is associated with a projection apparatus of digital images on a screen and coupled to the source device. The method includes: performing a first conversion on a first triad of parameters associated to the first color space by a first conversion matrix to map such a first triad in a third triad of parameters; the third triad is representative of a color space independent from the first and the second color spaces; performing a second conversion on the third triad of parameters by a second conversion matrix to map such a third triad of parameters in a second triad of parameters representative of the second color space. An embodiment of the step of performing the second conversion includes a step of computing the coefficients of the second conversion matrix based on at least one first piece of information representative of a variable distance between the projection apparatus and the screen.

摘要翻译： 实施例涉及将数字图像从第一颜色空间转换为第二颜色空间的方法。 第一颜色空间与电子源设备相关联，并且第二颜色空间与屏幕上的数字图像的投影设备相关联并耦合到源设备。 该方法包括：通过第一转换矩阵对与第一颜色空间相关联的参数的第一三元组执行第一转换，以将第三三元组的参数映射到第一三元组; 第三个三元组代表与第一和第二颜色空间无关的颜色空间; 通过第二转换矩阵在第三三元组参数上执行第二转换，以在表示第二颜色空间的参数的第二三元组中映射这样的第三三元组参数。 执行第二转换的步骤的实施例包括基于表示投影设备和屏幕之间的可变距离的至少一个第一信息来计算第二转换矩阵的系数的步骤。

公开(公告)号：US20160373712A1

公开(公告)日：2016-12-22

申请号：US14901870

申请日：2014-07-02

申请人： SONY CORPORATION

发明人： Kazuo Yamamoto ,  Toshiya Hamada ,  Shinobu Hattori ,  Kuniaki Takahashi

IPC分类号： H04N9/82 ,  H04N9/64 ,  G11B20/10 ,  H04N11/24

CPC分类号： H04N9/8205 ,  G11B20/10 ,  G11B27/32 ,  G11B2220/2541 ,  H04N5/76 ,  H04N9/646 ,  H04N9/67 ,  H04N9/69 ,  H04N11/002 ,  H04N19/85 ,  H04N21/4402 ,  H04N21/4854

摘要： The present technology relates to a reproduction device, a reproduction method, and a recording medium that enable graphics with an appropriate brightness to be displayed on a video having a wide dynamic range of brightness. A recording medium, on which the reproduction device of one aspect of the present technology performs reproduction, records coded data of an extended video that is a video having a second brightness range that is wider than a first brightness range, brightness characteristic information that represents a brightness characteristic of the extended video, and graphics data that is superimposed on the extended video and that has the first brightness range. The reproduction device converts a first pixel value of the graphics to a second pixel value in the brightness characteristic of the extended video represented by the brightness characteristic information, the second pixel value representing brightness that is equivalent to brightness represented by the first pixel value in a brightness characteristic of the graphics, and synthesizes the extended video, the extended video being obtained by decoding the coded data, together with graphics having the second pixel value. The present technology can be applied to players that reproduce contents.

摘要翻译： 本技术涉及使具有适当亮度的图形能够显示在具有宽的动态亮度范围的视频上的再现设备，再现方法和记录介质。 本技术的一个方面的再现装置进行再现的记录介质记录作为具有比第一亮度范围宽的第二亮度范围的视频的扩展视频的编码数据，表示 扩展视频的亮度特性和叠加在扩展视频上并且具有第一亮度范围的图形数据。 再现装置将图形的第一像素值转换为由亮度特性信息表示的扩展视频的亮度特性中的第二像素值，表示相当于第一像素值的亮度的第二像素值， 图形的亮度特性，并且合成扩展视频，通过对编码数据进行解码而获得的扩展视频，以及具有第二像素值的图形。 本技术可以应用于播放内容的玩家。

公开(公告)号：US20160366449A1

公开(公告)日：2016-12-15

申请号：US15119000

申请日：2015-02-21

申请人： KONINKLIJKE PHILIPS N.V.

发明人： Jeroen Hubert Christoffel Jacobus STESSEN ,  Renatus Josephus VAN DER VLEUTEN ,  Johannes Gerardus Rijk VAN MOURIK ,  Rutger NIJLAND

IPC分类号： H04N19/98 ,  H04N19/85 ,  H04N9/77 ,  H04N9/67 ,  H04N1/64

CPC分类号： H04N19/98 ,  H04N1/64 ,  H04N1/646 ,  H04N9/67 ,  H04N9/77 ,  H04N19/85

摘要： Because we needed a new improved and very different color encoding space for being able to faithfully encode the presently emerging high dynamic range video for good quality rendering on emerging HDR displays such as the SIM2 display, we present around that new color space various new decoders which allow simplified processing, in particular the handling of all achromatic direction (i.e. luminance) optimization separate from the chromatic processing, and increased quality of the reconstructed HDR images. This is realized by a video decoder (350) having an input (358) for receiving a video signal (S_im) transmitted over a video transmission system or received on a video storage product, in which pixel colors are encoded with an achromatic luma (Y′) coordinate and two chromaticity coordinates (u″,v″), the video decoder comprising a scaling unit (356) arranged to transform the chromaticity colors into a luminance-dependent chrominance color representation, by scaling with the achromatic luma.

摘要翻译： 因为我们需要一个新的改进和非常不同的颜色编码空间，以便能够忠实地编码目前正在出现的高动态范围视频，以便在诸如SIM2显示器的新兴HDR显示器上获得良好的质量渲染，我们围绕着这种新的色彩空间呈现各种新的解码器 允许简化的处理，特别是处理与彩色处理分开的所有消色方向（即，亮度）优化，以及提高重建的HDR图像的质量。 这是由具有输入（358）的视频解码器（350）来实现的，该输入端用于接收通过视频传输系统发送的或在视频存储产品上接收的视频信号（S_im），其中像素颜色用无色亮度（Y '）坐标和两个色度坐标（u“，v”），所述视频解码器包括经缩放单元（356），缩放单元（356）被布置为通过与所述消色差亮度缩放来将色度颜色变换为依赖于亮度的色度颜色表示。

公开(公告)号：US09521380B2

公开(公告)日：2016-12-13

申请号：US14871520

申请日：2015-09-30

申请人： SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC

发明人： Marko Mlinar ,  Brian Keelan

IPC分类号： H04N9/04 ,  G06K9/46 ,  G06T3/40 ,  G06T5/10 ,  G06T11/60 ,  H04N5/63

CPC分类号： H04N9/045 ,  G06K9/46 ,  G06T3/4015 ,  G06T5/10 ,  G06T11/60 ,  G06T2207/10024 ,  H04N5/63 ,  H04N9/67 ,  H04N9/735 ,  H04N2209/041

摘要： An image sensor may have an array of image sensor pixels arranged in color filter unit cells each having one red image pixel that generates red image signals, one blue image pixel that generate blue image signals, and two clear image sensor pixels that generate white image signals. The image sensor may be coupled to processing circuitry that performs filtering operations on the red, blue, and white image signals to increase noise correlations in the image signals that reduce noise amplification when applying a color correction matrix to the image signals. The processing circuitry may extract a green image signal from the white image signal. The processing circuitry may compute a scaling value that includes a linear combination of the red, blue, white and green image signals. The scaling value may be applied to the red, blue, and green image signals to produce corrected image signals having improved image quality.

公开(公告)号：US09520103B2

公开(公告)日：2016-12-13

申请号：US14385992

申请日：2014-07-25

申请人： Shenzhen China Star Optoelectronics Technology Co., Ltd.

发明人： Lixuan Chen

IPC分类号： G09G5/02 ,  G09G3/20 ,  G09G3/32 ,  H01L27/32

CPC分类号： G09G5/02 ,  G09G3/2003 ,  G09G3/3208 ,  G09G3/3648 ,  G09G5/04 ,  G09G2300/0452 ,  G09G2320/0626 ,  G09G2320/0666 ,  G09G2340/06 ,  H01L27/3213 ,  H04N9/67

摘要： A RGB-to-RGBW color converting system includes: a linearization section for linearizing inputted RGB values; a comparing section for comparing the linearized RGB values to obtain maximum and minimum values; a binarization section for performing a brightness binarization on the linearized RGB values to obtain a brightness binarization value; a gain value determining section for comparing a percentage of number of pixels corresponding to the brightness binarization value to all number of pixels in an image with a preset percentage to obtain a gain value; an output value calculating section for calculating RGBW output values according to the linearized RGB values, the maximum value, the minimum value, the gain value and the preset percentage. Accordingly, the addition of W sub-pixel unit would not result in the decrease of RGB output values, so that the color saturation can be improved while the whole brightness of image is maintained.

摘要翻译： RGB-RGBW颜色转换系统包括：线性化部分，用于线性化输入的RGB值; 用于比较线性化RGB值以获得最大值和最小值的比较部分; 二进制化部分，用于对线性化RGB值执行亮度二值化以获得亮度二值化值; 增益值确定部分，用于将与亮度二值化值相对应的像素数量的百分比与预设百分比的图像中的所有像素数比较以获得增益值; 输出值计算部分，用于根据线性化RGB值，最大值，最小值，增益值和预设百分比来计算RGBW输出值。 因此，添加W子像素单元不会导致RGB输出值的减小，从而可以在保持图像的整个亮度的同时提高色彩饱和度。