Raw Camera Noise Reduction Using Alignment Mapping
    3.
    发明申请
    Raw Camera Noise Reduction Using Alignment Mapping 有权
    使用对齐映射的原始相机降噪

    公开(公告)号:US20150350576A1

    公开(公告)日:2015-12-03

    申请号:US14726386

    申请日:2015-05-29

    Applicant: Apple Inc.

    Inventor: Mark Zimmer

    Abstract: This disclosure pertains to novel devices, methods, and computer readable media for performing raw camera noise reduction using a novel, so-called “alignment mapping” technique to more effectively separate structure from noise in an image, in order to aid in the denoising process. Alignment mapping allows for the extraction of more structure from the image and also the ability to understand the image structure, yielding information for edge direction, edge length, and corner locations within the image. This information can be used to smooth long edges properly and to prevent tight image details, e.g., text, from being overly smoothed. In alignment maps, the amount of noise may be used to compute thresholds and scaling parameters used in the preparation of the alignment map. According to some embodiments, a feature map may also be created for the image. Finally, the image may be smoothed using the created feature map as a mask.

    Abstract translation: 本公开涉及用于使用新颖的所谓“对准映射”技术来执行原始相机噪声降低的新颖设备,方法和计算机可读介质,以更有效地将结构与图像中的噪声分离,以便有助于去噪处理 。 对齐映射允许从图像中提取更多的结构,并且还能够理解图像结构,产生边缘方向,边缘长度以及图像内的角位置的信息。 该信息可用于适当地平滑长边缘并且防止紧密的图像细节(例如文本)被过度平滑化。 在对齐图中,可以使用噪声量来计算准备对准图中使用的阈值和缩放参数。 根据一些实施例,还可以为图像创建特征图。 最后,可以使用创建的特征图作为掩码来平滑图像。

    System And Method For Computing An Image
    4.
    发明申请
    System And Method For Computing An Image 审中-公开
    用于计算图像的系统和方法

    公开(公告)号:US20140292797A1

    公开(公告)日:2014-10-02

    申请号:US14305523

    申请日:2014-06-16

    Applicant: Apple Inc.

    CPC classification number: G09G5/363 G06F9/451 G06T1/20 G06T11/001 G09G5/14

    Abstract: Disclosed are a system and method for computing a picture. Instead of loading a file that contains the image from memory, the present invention provides for a system and method for opening and retaining a procedural recipe and a small set of instructions that can be executed to compute a picture. The picture can be computed very quickly using a GPU (graphics processing unit), and can be made to move on demand. When a part of the image is needed to composite, that part is computed using a fragment program on the GPU using the procedural recipe and a specially written fragment program into a temporary VRAM buffer. After it is computed and composited, the buffer containing the result of the fragment program may be discarded.

    Abstract translation: 公开了一种用于计算图像的系统和方法。 本发明不是加载来自存储器的包含图像的文件,而是提供了用于打开和保留程序配方的系统和方法以及可以执行以计算图片的一小组指令。 可以使用GPU(图形处理单元)非常快速地计算图像,并且可以根据需要进行移动。 当图像的一部分需要复合时,该部分使用GPU上的片段程序使用过程配方和特殊写入的片段程序计算到临时VRAM缓冲区中。 在计算和合成之后,可能会丢弃包含片段程序结果的缓冲区。

    Three dimensional user interface effects on a display
    6.
    发明授权
    Three dimensional user interface effects on a display 有权
    显示器上的三维用户界面效果

    公开(公告)号:US09411413B2

    公开(公告)日:2016-08-09

    申请号:US14329777

    申请日:2014-07-11

    Applicant: Apple Inc.

    Abstract: The techniques disclosed herein may use various sensors to infer a frame of reference for a hand-held device. In fact, with various inertial clues from accelerometer, gyrometer, and other instruments that report their states in real time, it is possible to track a Frenet frame of the device in real time to provide an instantaneous (or continuous) 3D frame-of-reference. In addition to—or in place of—calculating this instantaneous (or continuous) frame of reference, the position of a user's head may either be inferred or calculated directly by using one or more of a device's optical sensors, e.g., an optical camera, infrared camera, laser, etc. With knowledge of the 3D frame-of-reference for the display and/or knowledge of the position of the user's head, more realistic virtual 3D depictions of the graphical objects on the device's display may be created—and interacted with—by the user.

    Abstract translation: 本文公开的技术可以使用各种传感器来推断用于手持设备的参考帧。 事实上,由于来自加速度计,陀螺仪和其他实时报告其状态的仪器的各种惯性线索,可以实时跟踪设备的Frenet帧,以提供瞬时(或连续)3D帧 - 参考。 除了或代替计算这个瞬时(或连续的)参照系,用户头部的位置可以通过使用设备的一个或多个光学传感器(例如,光学摄像机)来直接推断或计算, 红外摄像机,激光器等。通过了解用于显示和/或用户头部位置的知识的3D参考框架,可以创建设备显示器上的图形对象的更逼真的虚拟3D描绘,以及 与用户进行交互。

    Systems and methods for chroma noise reduction

    公开(公告)号:US09710896B2

    公开(公告)日:2017-07-18

    申请号:US14796916

    申请日:2015-07-10

    Applicant: APPLE INC.

    CPC classification number: G06T5/20 G06T5/002 G06T2207/10024

    Abstract: Systems and methods for reducing chrominance (chroma) noise in image data are provided. In one example of such a method, image data in YCC format may be received into logic of an image signal processor. Using the logic, noise may be filtered from a first chrominance component or a second chrominance component, or both, of the image data, using a sparse filter and a noise threshold. The noise threshold may be determined based at least in part on two of the components of the YCC image data.

    Blind defringing for color images
    9.
    发明授权
    Blind defringing for color images 有权
    盲目排除彩色图像

    公开(公告)号:US09443292B2

    公开(公告)日:2016-09-13

    申请号:US14726356

    申请日:2015-05-29

    Applicant: Apple Inc.

    Inventor: Mark Zimmer

    Abstract: This disclosure pertains to novel devices, methods, and computer readable media for performing “blind” color defringing on images. In one embodiment, the blind defringing process begins with blind color edge alignment. This process largely cancels every kind of fringe, except for axial chromatic aberration. Next, the process looks at the edges and computes natural high and low colors to either side of the edge, attempting to get new pixel colors that aren't contaminated by the fringe color. Next, the process resolves the pixel's estimated new color by interpolating between the low and high colors, based on the green variation across the edge and the amount of green in the pixel that is being repaired. Care is taken to prevent artifacts in areas that generally do not fringe, like red-black boundaries and skin tone. Finally, the process computes the final repaired color by using luminance-scaling of the new pixel color estimate.

    Abstract translation: 本公开涉及用于对图像执行“盲目”着色的新颖设备,方法和计算机可读介质。 在一个实施例中,盲目排除过程以盲色边缘对准开始。 除了轴向色差外,该过程大大抵消了各种边缘。 接下来,该过程查看边缘,并计算边缘任意一侧的自然高低颜色,尝试获取不受边缘颜色污染的新像素颜色。 接下来,该过程基于边缘上的绿色变化和正在修复的像素中的绿色量在低和高颜色之间进行内插来解决像素的估计新颜色。 注意防止通常不会流失的区域的伪像,如红黑色边界和肤色。 最后,该过程通过使用新的像素颜色估计的亮度调整来计算最终修复的颜色。

    Defringing RAW images
    10.
    发明授权
    Defringing RAW images 有权
    排除RAW图像

    公开(公告)号:US09443290B2

    公开(公告)日:2016-09-13

    申请号:US13927638

    申请日:2013-06-26

    Applicant: Apple Inc.

    Inventor: Mark Zimmer

    Abstract: This disclosure pertains to novel devices, methods, and computer readable media for performing color defringing on image data. In photography, particularly RAW images, different artifacts can affect the quality of the edges of objects in the image. This effect is generally more noticeable when the edge has high contrast. One motivation for the described techniques is the understanding that, typically, not all pixels of an image exhibit color fringing. Usually, fringing only occurs in high-contrast edges. Mere masking of the effects of the whole-image operations can improve the result, but further improvements are still possible. This disclosure also pertains to novel devices and computer readable media for performing red-blue color reconstruction on data from a variety of color filter arrays (CFAs).

    Abstract translation: 本公开涉及用于对图像数据执行色彩降级的新颖设备,方法和计算机可读介质。 在摄影中,特别是RAW图像,不同的人造物会影响图像中物体边缘的质量。 当边缘具有高对比度时,这种效果通常更为显着。 所描述的技术的一个动机是理解,通常,并不是图像中的所有像素都显示出色边缘。 通常,边缘仅在高对比度边缘发生。 对整个图像操作的影响的掩盖只能改善结果,但是仍然可以进一步改进。 本公开还涉及用于对来自各种滤色器阵列(CFA)的数据执行红蓝色重建的新颖设备和计算机可读介质。

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