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    Lossless Image Compression using Differential Transfer
    41.
    发明申请
    Lossless Image Compression using Differential Transfer 有权
    使用差分传输的无损图像压缩

    公开(公告)号：US20140161367A1

    公开(公告)日：2014-06-12

    申请号：US14035682

    申请日：2013-09-24

    Applicant: Apple Inc.

    Inventor： Robert L. Ridenour ,  Jeffrey E. Frederiksen ,  Ian C. Hendry

    IPC: G06T9/00

    CPC classification number: H04N19/137 ,  H04N19/107 ,  H04N19/115 ,  H04N19/12 ,  H04N19/15 ,  H04N19/176 ,  H04N19/30 ,  H04N19/46 ,  H04N19/547 ,  H04N19/63

    Abstract: Lossless image compression using differential transfers may involve an image compression unit receiving image data for an image in a sequence of images and transmitting the image data such that image data for at least some image tiles is transmitted using lossy compression due to resource limitations. The image compression unit may then receive image data for a subsequent image in the sequence and determine that the image data for at least some tiles does not change relative to the image data for corresponding tiles of the previous image. The image compression unit may then transmit image data in a manner sufficient to create lossless versions of tiles for which lossily compressed image data was sent previously.

    Abstract translation: 使用差分传送的无损图像压缩可以涉及图像压缩单元，其接收图像序列中的图像的图像数据，并发送图像数据，使得由于资源限制，使用有损压缩来传送至少一些图像块的图像数据。 然后，图像压缩单元可以接收序列中的后续图像的图像数据，并且确定用于至少一些瓦片的图像数据相对于先前图像的相应瓦片的图像数据不会改变。 然后，图像压缩单元可以以足以创建先前发送有损压缩图像数据的瓦片的无损版本的方式来发送图像数据。

    Automatic display adaptation based on environmental conditions
    42.
    发明授权
    Automatic display adaptation based on environmental conditions 有权

    公开(公告)号：US11386875B2

    公开(公告)日：2022-07-12

    申请号：US16887621

    申请日：2020-05-29

    Applicant: Apple Inc.

    Inventor： Kenneth I. Greenebaum ,  Travis W. Brown ,  Ian C. Hendry

    IPC: G09G3/20 ,  G09G5/393 ,  G09G5/06

    Abstract: A device comprises memory, a display characterized by a characteristic, and processors coupled to the memory. The processors receive data indicative of a preferred adaptation technique and intended display parameter. The processors adapt the content item to a display color space and the intended display parameter based on the preferred adaptation technique. The processors modify the intended display parameter based at least in part on the display characteristic to obtain a modified display parameter and cause the adapted content item to be displayed on the display according to the modified display parameter. In some embodiments, the processors obtain data indicative of ambient light conditions and adjust the modified display parameter based on the data indicative of ambient light conditions. In some embodiments, the processors cause the adapted content item to be displayed according to the adjusted and modified display parameter.

    Rendering information into images
    43.
    发明授权
    Rendering information into images 有权

    公开(公告)号：US11062435B2

    公开(公告)日：2021-07-13

    申请号：US16680120

    申请日：2019-11-11

    Applicant: Apple Inc.

    Inventor： Ian C. Hendry ,  John C. Gnaegy

    IPC: G06T11/00 ,  G06T11/60 ,  G06T5/00 ,  G06T7/90 ,  G06T7/11 ,  G09G5/37 ,  G06K9/32 ,  H04N5/45 ,  H04N5/57

    Abstract: Systems, methods, and computer readable media to improve the operation of a display system are disclosed. Techniques disclosed herein selectively darken a region of an image so that when text or other information is rendered into that region, the contrast between the text or other information and the underlying image in that area is sufficient to ensure the text or other information is visible and readable. In one embodiment, a region into which information is to be rendered may be combined or blended with tone mapped values of those same pixels in accordance with a given function, where the function gives more weight to the tone mapped pixel values the closer those pixels are to the midline of the region and more weight to untone-mapped image pixel values the further those pixels are from the midline of the region.

    Color Matching for Output Devices
    46.
    发明申请
    Color Matching for Output Devices 审中-公开

    公开(公告)号：US20190213974A1

    公开(公告)日：2019-07-11

    申请号：US15868552

    申请日：2018-01-11

    Applicant: Apple Inc.

    Inventor： Gabriel Marcu ,  Ian C. Hendry

    IPC: G09G5/06

    CPC classification number: G09G5/06 ,  G06F3/0482 ,  G06F3/04847 ,  G09G2320/0666 ,  G09G2354/00

    Abstract: Systems, methods, and computer readable media to perform color matching between a source color profile and a user-selected color profile are described. Various embodiments receive user input to select a color profile to output source content to an output device, where the source content is associated with a source color profile. Various embodiments set the selected color profile as a target color profile and subsequently perform a first device-dependent color space conversion that converts the source color profile to the target color profile and uses the conversion to generate a target content from the source content. A second device-dependent color space conversion can then be performed to convert the target color profile to a device color profile and uses the conversion to generate output device content from the target content.

    Rendering and displaying high dynamic range content
    48.
    发明授权
    Rendering and displaying high dynamic range content 有权

    公开(公告)号：US10249263B2

    公开(公告)日：2019-04-02

    申请号：US15173425

    申请日：2016-06-03

    Applicant: Apple Inc.

    Inventor： Ian C. Hendry ,  Kenneth I. Greenebaum ,  Eric L. Dacquay

    IPC: G06T1/20 ,  G09G5/02 ,  G06T11/00 ,  G09G5/10 ,  G06F3/0484 ,  H04N5/58 ,  H04N1/60 ,  H04N5/202 ,  H04N19/46 ,  H04N19/98

    Abstract: Methods and apparatus for rendering and displaying high dynamic range (HDR) digital image content. An HDR rendering and display system may support the rendering and display of standard dynamic range (SDR) and HDR content to both HDR-enabled and standard displays. The HDR rendering and display system renders digital image content into the HDR space and maps the rendered HDR content into the display space of HDR or standard displays using display processing techniques that may preserve at least some of the HDR content even for standard displays. The HDR rendering and display system may take into account various information including but not limited to display characteristics such as size, control inputs, current image characteristics such as image brightness, and environmental information such as viewer position and ambient lighting levels to dynamically adapt the rendering and display of the digital image content according to ambient viewing conditions at the target display.

    Rendering information into images
    49.
    发明授权
    Rendering information into images 有权

    公开(公告)号：US10032263B2

    公开(公告)日：2018-07-24

    申请号：US15620514

    申请日：2017-06-12

    Applicant: Apple Inc.

    Inventor： Ian C. Hendry ,  John C. Gnaegy

    IPC: G06T5/00 ,  G06T11/00 ,  G06T7/11 ,  G06T11/60 ,  G06K9/46 ,  G06K9/52 ,  G06T7/90

    Abstract: Systems, methods, and computer readable media to improve the operation of a display system are disclosed. Techniques disclosed herein selectively darken a region of an image so that when text or other information is rendered into that region, the contrast between the text or other information and the underlying image in that area is sufficient to ensure the text or other information is visible and readable. In one embodiment, a region into which information is to be rendered may be combined or blended with tone mapped values of those same pixels in accordance with a given function, where the function gives more weight to the tone mapped pixel values the closer those pixels are to the midline of the region and more weight to untone-mapped image pixel values the further those pixels are from the midline of the region.

    System and method for display mirroring
    50.
    发明授权
    System and method for display mirroring 有权

    公开(公告)号：US10031712B2

    公开(公告)日：2018-07-24

    申请号：US15413328

    申请日：2017-01-23

    Applicant: Apple Inc.

    Inventor： Geoffrey G. Stahl ,  Ian C. Hendry ,  Kenneth C. Dyke ,  Patrick L. Coffman ,  Steve S. Ko ,  Nathaniel C. Begeman

    IPC: G06F13/12 ,  G06F13/38 ,  G06F3/14 ,  G06T3/40 ,  G06T11/00 ,  G09G5/00

    Abstract: A computing system that supports the use of multiple displays in display mirroring mode and extended display mode may automatically determine a display mode in which to configure the system (with little or no user input) based on various characteristics of the displays in the system. For example, the system may determine that a television, projector, or other presentation type display is connected in the system, and in response, may determine that the system should be configured in a display mirroring mode, rather than in an extended display mode. The system may also determine that the presentation type display is the preferred display, and may render image content in a best (or preferred) mode for that display using its native resolution, aspect ratio or color profile. The system may then scale the rendered image content for display on other (non-preferred) displays, such as an internal display, without re-rendering it.

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