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公开(公告)号：US10403214B2
公开(公告)日：2019-09-03
申请号：US15814262
申请日：2017-11-15
Applicant: Apple Inc.
Inventor： Teun R. Baar , Nicolas P. Bonnier , Jiaying Wu , Marc Albrecht
Abstract: An electronic device may be provided with a display. Standard and high dynamic range content may be produced by content generators operating on control circuitry. In a first mode of operation, standard dynamic range content is displayed. In a second mode of operation, high dynamic range content is displayed. In a third mode of operation, standard dynamic range content and high dynamic range content are simultaneously displayed. Tone mapping parameters may be produced by a tone mapping engine for use in displaying the standard and high dynamic range content. The tone mapping parameters may be selected based on factors such as ambient light level, user brightness setting, content statistics, and display characteristics. Tone mapping parameters may be selected to accommodate simultaneous display of standard and high dynamic range content and to accommodate transitions between standard and high dynamic range content.
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公开(公告)号：US10402952B2
公开(公告)日：2019-09-03
申请号：US15667099
申请日：2017-08-02
Applicant: Apple Inc.
Inventor： Teun R. Baar , Jiaying Wu , Nicolas P. Bonnier , Garrett M. Johnson , Paul M. Hubel
Abstract: Systems, methods, and computer readable media to improve the operation of electronic display systems. Techniques for inverse tone mapping operations for selected standard dynamic range (SDR) images are described. The converted images may be presented on high dynamic range (HDR) displays so as to increase a user's viewing experience (through an expanded dynamic range) while preserving the artistic content of the displayed information. Techniques disclosed herein selectively transform SDR images to HDR images by determining if the SDR images were created from HDR images (e.g., through the fusion of multiple SDR images) and if their quality is such as to permit the conversion without introducing unwanted visual artifacts. The proposed techniques apply a sigmoidal inverse tone mapping function configured to provide a perceptual-based tone mapping. Values for the function's tuning parameters may be set based on what may be determined about the original HDR-to-SDR mapping operation.
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公开(公告)号：US10379612B1
公开(公告)日：2019-08-13
申请号：US15826367
申请日：2017-11-29
Applicant: Apple Inc.
Inventor： Nicolas P. Bonnier , William Riedel , Jiaying Wu , Martin P. Grunthaner , Seyed Hesameddin Najafi Shoushtari
Abstract: An electronic device may have a display and a gaze tracking system. Control circuitry in the electronic device can produce a saliency map in which items of visual interest are identified among content that has been displayed on a display in the electronic device. The saliency map may identify items such as selectable buttons, text, and other items of visual interest. User input such as mouse clicks, voice commands, and other commands may be used by the control circuitry in identifying when a user is gazing on particular items within the displayed content. Information on a user's actual on-screen point of gaze that is inferred using the saliency map information and user input can be compared to measured eye position information from the gaze tracking system to calibrate the gaze tracking system during normal operation of the electronic device.
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公开(公告)号：US20180350322A1
公开(公告)日：2018-12-06
申请号：US15621459
申请日：2017-06-13
Applicant: Apple Inc.
Inventor： Gabriel Marcu , Kenneth Greenebaum , Lu Zhang , Jiaying Wu , Ian Hendry
IPC: G09G5/02
CPC classification number: G09G5/06 , G09G2340/06 , G09G2360/144
Abstract: Scalable color balancing techniques for processing images to be presented on displays are described. One technique includes receiving ambient light color information from an ambient light sensor and input image data to be presented via a display coincident with receiving the ambient light color information. The display may have a first white point at a time prior to receiving the input image data. The technique may include determining a second white point for the display based on the input image data and the ambient light color information. The first and second white points may differ from each other. The technique may also include generating one or more chromatic adaptation transforms (CATs) based on the white points. Output image data may be generated based on applying the one or more CATs to the input image data. The output image data may be presented via the display. Other embodiments are described.
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公开(公告)号：US20180350047A1
公开(公告)日：2018-12-06
申请号：US15667099
申请日：2017-08-02
Applicant: Apple Inc.
Inventor： Teun R. Baar , Jiaying Wu , Nicolas P. Bonnier , Garrett M. Johnson , Paul M. Hubel
IPC: G06T5/00
CPC classification number: G06T5/009 , G06T5/20 , G06T5/50 , G06T2207/10024 , G06T2207/20028 , G06T2207/20208
Abstract: Systems, methods, and computer readable media to improve the operation of electronic display systems are disclosed. Techniques for inverse tone mapping operations for selected standard dynamic range (SDR) images are described. The converted images may be presented on high dynamic range (HDR) displays so as to increase a user's viewing experience (through an expanded dynamic range) while preserving the artistic content of the displayed information. Techniques disclosed herein selectively transform SDR images to HDR images by determining if the SDR images were created from HDR images (e.g., through the fusion of multiple SDR images) and if their quality is such as to permit the conversion without introducing unwanted visual artifacts. The proposed techniques apply a sigmoidal inverse tone mapping function configured to provide a perceptual-based tone mapping. Values for the function's tuning parameters may be set based on what may be determined about the original HDR-to-SDR mapping operation.
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Patent Agency Ranking
公开(公告)号：US20160370231A1
公开(公告)日：2016-12-22
申请号：US14862026
申请日：2015-09-22
Applicant: Apple Inc.
Inventor： Farnaz Agahian , Jiaying Wu , Zhang Jia , Cheng Chen
CPC classification number: G09G3/2003 , G01J1/4204 , G01J3/50 , G01J3/505 , G01J2003/467 , G09G2320/0233 , G09G2320/0242 , G09G2320/0693 , G09G2340/06 , G09G2360/144
Abstract: An electronic device may be provided with a display mounted in a housing. A color sensing ambient light sensor may measure the color of ambient light. The color sensing ambient light sensor may produce sensor output signals in a device-dependent color space. Control circuitry in the electronic device may convert the sensor output signals from the device-dependent color space to a device-independent color space using a color converting matrix. The color converting matrix may be determined using stored training data. The training data may include color data for different training light sources. The training data may be weighted to selectively control the influence of the training data on the color converting matrix. The training data may be weighted based on a distance between the training color data and a target color in the detected ambient light.
Abstract translation: 电子设备可以设置有安装在壳体中的显示器。 颜色感测环境光传感器可以测量环境光的颜色。 颜色感测环境光传感器可以在依赖于设备的色彩空间中产生传感器输出信号。 电子设备中的控制电路可以使用颜色转换矩阵将来自设备相关颜色空间的传感器输出信号转换为与设备无关的颜色空间。 可以使用存储的训练数据来确定颜色转换矩阵。 训练数据可以包括用于不同训练光源的颜色数据。 训练数据可以被加权以选择性地控制训练数据对颜色转换矩阵的影响。 可以基于检测到的环境光中的训练颜色数据和目标颜色之间的距离来加权训练数据。
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27.发明申请公开(公告)号：US20160293085A1
公开(公告)日：2016-10-06
申请号：US14848769
申请日：2015-09-09
Applicant: Apple Inc.
Inventor： Adria Fores Herranz , Cheng Chen , Jiaying Wu , Nicholas G. Roland
CPC classification number: G09G3/2003 , G09G3/2092 , G09G3/3607 , G09G3/3648 , G09G5/003 , G09G5/02 , G09G2320/0242 , G09G2320/0252 , G09G2320/0261 , G09G2340/16
Abstract: An electronic device may generate content that is to be displayed on a display. The display may have an array of pixels each of which includes subpixels of different colors. The content that is to be displayed on the display may include an object such as a black object that is moved across a background. Due to differences in subpixel values in the background for subpixels of different colors, there is a potential for color motion blur to develop along a trailing edge portion of the object as the object is moved across the background. The electronic device may have a blur abatement image processor that processes the content to reduce color motion blur. The blur abatement image processor may identify which pixels are located in the trailing edge and may adjust subpixel values for pixels in the trailing edge.
Abstract translation: 电子设备可以产生要显示在显示器上的内容。 显示器可以具有像素阵列，每个像素包括不同颜色的子像素。 要显示在显示器上的内容可以包括诸如黑色物体之类的物体，该物体在背景上移动。 由于不同颜色的子像素的背景中的子像素值的差异，当物体在背景上移动时，存在沿对象的后缘部分发展颜色运动模糊的可能性。 电子设备可以具有处理内容以减少颜色运动模糊的模糊消除图像处理器。 模糊消除图像处理器可以识别哪些像素位于后沿，并且可以调整后沿中的像素的子像素值。
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公开(公告)号：US20160140889A1
公开(公告)日：2016-05-19
申请号：US14673685
申请日：2015-03-30
Applicant: Apple Inc.
Inventor： Jiaying Wu , Lu Zhang , Cheng Chen , Gabriel Marcu , Chaohao Wang , Ming Xu , Ricardo Motta , Wei Chen , John Z. Zhong
IPC: G09G3/20
CPC classification number: G09G3/2003 , G09G3/3413 , G09G5/02 , G09G2320/0242 , G09G2320/0261 , G09G2320/0666 , G09G2360/144 , G09G2360/145
Abstract: An electronic device may include a display having an array of display pixels and having display control circuitry that controls the operation of the display. The display control circuitry may adaptively adjust the display output based on ambient lighting conditions. For example, in cooler ambient lighting conditions such as those dominated by daylight, the display may display neutral colors using a relatively cool white. When the display is operated in warmer ambient lighting conditions such as those dominated by indoor light sources, the display may display neutral colors using a relatively warm white. Adapting to the ambient lighting conditions may ensure that the user does not perceive color shifts on the display as the user's vision chromatically adapts to different ambient lighting conditions. Adaptively adjusting images in this way can also have beneficial effects on the human circadian rhythm by displaying warmer colors in the evening.
Abstract translation: 电子设备可以包括具有显示像素阵列并具有控制显示器的操作的显示控制电路的显示器。 显示控制电路可以基于环境照明条件自适应地调整显示输出。 例如，在较冷的环境照明条件下，例如由日光控制的环境照明条件下，显示器可以使用相当冷的白色显示中性色。 当显示器在诸如由室内光源所主导的那些的温暖的环境照明条件下操作时，显示器可以使用相对温暖的白色显示中性色。 适应环境照明条件可以确保用户在视觉色彩适应不同的环境照明条件时不会察觉显示器上的色彩偏移。 以这种方式自适应调整图像也可以通过在晚上显示温暖的颜色对人类昼夜节律有益。
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29.发明授权High accuracy imaging colorimeter by special designed pattern closed-loop calibration assisted by spectrograph 有权高精度成像色度计通过特殊设计的模式闭环校准辅助光谱仪公开(公告)号：US08988682B2
公开(公告)日：2015-03-24
申请号：US14058055
申请日：2013-10-18
Applicant: Apple Inc.
Inventor： Ye Yin , Gabriel G. Marcu , Jiaying Wu
CPC classification number: G01J3/28 , G01J3/0218 , G01J3/0243 , G01J3/0291 , G01J3/0294 , G01J3/0297 , G01J3/462 , G01J3/465 , G01J3/50 , G01J3/502 , G01J3/506 , G01J3/51 , G01J3/513 , G01J3/524
Abstract: This specification describes various embodiments that relate to methods for providing a wideband colorimeter that can include more accurate outputs. In one embodiment, a narrowband instrument, such as a spectrometer or spectrograph, can be used for calibration of a wideband colorimeter, so that more accurate outputs can be provided. In one embodiment, an optical test equipment, which consists of both a wideband colorimeter and a narrowband spectrograph, can be used for providing a more accurately calibrated wideband colorimeter. As an example, a spectra-camera, which is a hybrid system consisting of both a wideband colorimeter and a narrowband spectrograph, can be used for simultaneous testing by both the wideband colorimeter and the narrowband spectrograph. By doing simultaneous testing, accurate calibration of the wideband colorimeter can be achieved. This specification further describes a mathematical model to characterize a wideband three channel colorimeter with a narrowband multiple channel spectrometer.
Abstract translation: 本说明书描述了涉及用于提供宽带色度计的方法的各种实施例，其可以包括更精确的输出。 在一个实施例中，诸如光谱仪或光谱仪的窄带仪器可以用于宽带色度计的校准，从而可以提供更精确的输出。 在一个实施例中，由宽带色度计和窄带光谱仪组成的光学测试设备可用于提供更准确校准的宽带色度计。 作为示例，作为由宽带色度计和窄带光谱仪组成的混合系统的光谱相机可以用于宽带色度计和窄带光谱仪的同时测试。 通过同时测试，可以实现宽带色度计的精确校准。 该说明书进一步描述了用窄带多通道光谱仪来表征宽带三通道色度计的数学模型。
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公开(公告)号：US08937719B2
公开(公告)日：2015-01-20
申请号：US14058055
申请日：2013-10-18
Applicant: Apple Inc.
Inventor： Ye Yin , Gabriel G. Marcu , Jiaying Wu
Abstract: This specification describes various embodiments that relate to methods for providing a wideband colorimeter that can include more accurate outputs. In one embodiment, a narrowband instrument, such as a spectrometer or spectrograph, can be used for calibration of a wideband colorimeter, so that more accurate outputs can be provided. In one embodiment, an optical test equipment, which consists of both a wideband colorimeter and a narrowband spectrograph, can be used for providing a more accurately calibrated wideband colorimeter. As an example, a spectra-camera, which is a hybrid system consisting of both a wideband colorimeter and a narrowband spectrograph, can be used for simultaneous testing by both the wideband colorimeter and the narrowband spectrograph. By doing simultaneous testing, accurate calibration of the wideband colorimeter can be achieved. This specification further describes a mathematical model to characterize a wideband three channel colorimeter with a narrowband multiple channel spectrometer.
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