Systems and method for reducing fixed pattern noise in image data

    公开(公告)号:US11089247B2

    公开(公告)日:2021-08-10

    申请号:US13485101

    申请日:2012-05-31

    IPC分类号: H04N5/217 H04N5/365

    摘要: The present disclosure generally relates to systems and methods for image data processing. In certain embodiments, an image processing pipeline may be configured to receive a frame of the image data having a plurality of pixels acquired using a digital image sensor. The image processing pipeline may then be configured to determine a first plurality of correction factors that may correct each pixel in the plurality of pixels for fixed pattern noise. The first plurality of correction factors may be determined based at least in part on fixed pattern noise statistics that correspond to the frame of the image data. After determining the first plurality of correction factors, the image processing pipeline may be configured to configured to apply the first plurality of correction factors to the plurality of pixels, thereby reducing the fixed pattern noise present in the plurality of pixels.

    Selecting web page content based on user permission for collecting user-selected content
    32.
    发明授权
    Selecting web page content based on user permission for collecting user-selected content 有权
    根据用户收集用户选择内容的用户权限选择网页内容

    公开(公告)号:US09448695B2

    公开(公告)日:2016-09-20

    申请号:US13817725

    申请日:2010-12-14

    IPC分类号: G06F3/0484 G06Q30/02

    CPC分类号: G06F3/0484 G06Q30/0269

    摘要: A method, system, and computer program product for selecting web page content based on user permission for collecting user-selected content within web pages (FIG. 4, 400) may comprise accessing web page data associated with a currently viewed web page (FIG. 4, 400), the web page data comprising a popular selection of content on the currently viewed web page (FIG. 4, 408) (505), with an electronic client device, presenting the popular selection of content of the currently viewed web page (FIG. 4, 400) to a user (535), and prompting the user to agree to the use of the user's selected content within a number of web pages in exchange for use of the popular selection of content on the web page (FIG. 4, 400). The web page content is selected, based on the user's response.

    摘要翻译: 用于基于在网页内收集用户选择的内容的用户许可来选择网页内容的方法,系统和计算机程序产品(图4,400)可以包括访问与当前浏览的网页相关联的网页数据(图4)。 4,400),网页数据包括当前浏览的网页(图4,408)(505)上的流行的内容选择与电子客户端设备,呈现当前浏览网页的内容的流行选择 (图4,400)发送给用户(535),并且提示用户同意在多个网页内使用用户选择的内容,以换取在网页上使用流行的内容选择(图4 4,400)。 基于用户的响应选择网页内容。

    Method and system for providing print content to a client
    33.
    发明授权
    Method and system for providing print content to a client 有权
    用于向客户端提供打印内容的方法和系统

    公开(公告)号:US09152357B2

    公开(公告)日:2015-10-06

    申请号:US13032824

    申请日:2011-02-23

    IPC分类号: G06F3/12

    摘要: A request for print content is received at a network server system. The request includes variable user input. Webpage content is obtained based at least in part on the variable user input. A subset of the webpage content is identified as print content. A print-ready layout of the print content is formed and the print content in the print-ready layout is provided, via network connection, to a client in response to the request.

    摘要翻译: 在网络服务器系统处接收到对打印内容的请求。 该请求包括可变用户输入。 至少部分基于可变用户输入获得网页内容。 网页内容的一部分被标识为打印内容。 形成打印内容的打印准备布局,并且响应于该请求,通过网络连接向客户端提供打印就绪布局中的打印内容。

    Systems and methods for luma sharpening
    34.
    发明授权
    Systems and methods for luma sharpening 有权
    亮度锐化的系统和方法

    公开(公告)号:US09031319B2

    公开(公告)日:2015-05-12

    申请号:US13485341

    申请日:2012-05-31

    IPC分类号: G06K9/00 G06T7/40 H04N5/213

    CPC分类号: G06T7/408 H04N5/213

    摘要: Systems, methods, and devices for sharpening image data are provided. One example of an image signal processing system includes a YCC processing pipeline that includes luma sharpening logic. The luma sharpening logic may sharpen the luma component while avoiding sharpening some noise. Specifically, a multi-scale unsharp mask filter may obtain unsharp signals by filtering an input luma component, and sharp component determination logic may determine sharp signals representing differences between the unsharp signals and the luma component. Sharp lookup tables may “core” the sharp signals, which may prevent some noise from being sharpened. Output logic may determine a sharpened output luma signal by combining the sharp signals with, for example, luma component or one of the unsharp signals.

    摘要翻译: 提供了用于锐化图像数据的系统,方法和设备。 图像信号处理系统的一个示例包括包括亮度锐化逻辑的YCC处理流水线。 亮度锐化逻辑可以锐化亮度分量,同时避免锐化某些噪声。 具体地说,多尺度钝化掩模滤波器可以通过对输入亮度分量进行滤波来获得钝化信号,并且尖锐分量确定逻辑可以确定表示不清晰信号和亮度分量之间差异的尖锐信号。 锐度查找表可能会“清除”尖锐的信号,这可能会阻止某些噪点的锐化。 输出逻辑可以通过将尖锐信号与例如亮度分量或钝化信号之一组合来确定锐化的输出亮度信号。

    Systems and methods for raw image processing
    35.
    发明授权
    Systems and methods for raw image processing 有权
    原始图像处理的系统和方法

    公开(公告)号:US08872946B2

    公开(公告)日:2014-10-28

    申请号:US13485056

    申请日:2012-05-31

    IPC分类号: H04N5/217

    摘要: Systems and methods for processing raw image data are provided. One example of such a system may include memory to store image data in raw format from a digital imaging device and an image signal processor to process the image data. The image signal processor may include data conversion logic and a raw image processing pipeline. The data conversion logic may convert the image data into a signed format to preserve negative noise from the digital imaging device. The raw image processing pipeline may at least partly process the image data in the signed format. The raw image processing pipeline may also include, among other things, black level compensation logic, fixed pattern noise reduction logic, temporal filtering logic, defective pixel correction logic, spatial noise filtering logic, lens shading correction logic, and highlight recovery logic.

    摘要翻译: 提供了处理原始图像数据的系统和方法。 这种系统的一个示例可以包括存储器,以存储来自数字成像设备的原始格式的图像数据和图像信号处理器来处理图像数据。 图像信号处理器可以包括数据转换逻辑和原始图像处理流水线。 数据转换逻辑可以将图像数据转换为带符号格式以保护来自数字成像装置的负噪声。 原始图像处理流水线可以至少部分地以签名格式处理图像数据。 原始图像处理流水线还可以包括黑电平补偿逻辑,固定图案噪声降低逻辑,时间滤波逻辑,缺陷像素校正逻辑,空间噪声滤波逻辑,透镜阴影校正逻辑和高亮恢复逻辑。

    Context-aware image processing
    36.
    发明授权
    Context-aware image processing 有权
    上下文感知图像处理

    公开(公告)号:US08818109B2

    公开(公告)日:2014-08-26

    申请号:US11481346

    申请日:2006-07-04

    摘要: In one respect, provided are systems, methods and techniques in which local regions within an image are processed to provide fuzzy classification scores, which are calculated by determining changes in pixel values along a number of different directions. The resulting fuzzy classification scores are then used to detect or identify edge-containing or texture-containing regions, or to otherwise process the image regions differentially according to their fuzzy classification score. In another respect, provided are systems, methods and techniques for differential processing of different areas in an image. The differential processing in this case is based on calculated measures of local activity, which indicate features in corresponding local regions, and also based on calculated measures of local pixel-value variations, which indicate an amount of variation in pixel values across the corresponding local regions.

    摘要翻译: 在一方面,提供了一种系统,方法和技术,其中处理图像内的局部区域以提供模糊分类分数,其通过确定沿多个不同方向的像素值的变化来计算。 然后使用所得到的模糊分类分数来检测或识别含边缘或含纹理的区域,或者根据其模糊分类分数以不同方式处理图像区域。 在另一方面,提供了用于图像中不同区域的差分处理的系统,方法和技术。 在这种情况下的差分处理是基于计算的局部活动度量,其指示相应局部区域中的特征,并且还基于计算的局部像素值变化的度量,其指示跨越相应局部区域的像素值的变化量 。

    Pattern of color codes
    37.
    发明授权
    Pattern of color codes 有权
    颜色代码图案

    公开(公告)号:US08687068B2

    公开(公告)日:2014-04-01

    申请号:US12885528

    申请日:2010-09-19

    IPC分类号: H04N17/00 H04N17/02

    摘要: A pattern includes a spatial configuration of color codes. Each color code is a unique configuration of colors selected from a number of basis colors. The color codes each include the same number of colors.

    摘要翻译: 模式包括颜色代码的空间配置。 每个颜色代码是从多种基本颜色中选择的颜色的独特配置。 颜色代码各自包含相同数量的颜色。

    SYSTEMS AND METHODS FOR COLLECTING FIXED PATTERN NOISE STATISTICS OF IMAGE DATA
    39.
    发明申请
    SYSTEMS AND METHODS FOR COLLECTING FIXED PATTERN NOISE STATISTICS OF IMAGE DATA 有权
    用于收集图像数据的固定图形噪声统计的系统和方法

    公开(公告)号:US20130321672A1

    公开(公告)日:2013-12-05

    申请号:US13485124

    申请日:2012-05-31

    IPC分类号: H04N5/228 H04N5/00

    CPC分类号: G06T5/005 H04N5/365

    摘要: The present disclosure generally relates to systems and methods for image data processing. In certain embodiments, an image processing pipeline may collect statistics associated with fixed pattern noise of image data by receiving a first frame of the image data comprising a plurality of pixels. The image processing pipeline may then determine a sum of a first plurality of pixel values that correspond to at least a first portion of the plurality of pixels such that each pixel in at least the first portion of the plurality of pixels is disposed along a first axis within the frame of the image data. After determining the sum of the first plurality of pixel values, the image processing pipeline may store the sum of the first plurality of pixel values in a memory such that the sum of the first plurality of pixel values represent the statistics.

    摘要翻译: 本公开通常涉及用于图像数据处理的系统和方法。 在某些实施例中,图像处理流水线可以通过接收包括多个像素的图像数据的第一帧来收集与图像数据的固定模式噪声相关联的统计信息。 然后,图像处理流水线可以确定对应于多个像素的至少第一部分的第一多个像素值的和,使得至少第一部分中的每个像素沿着第一轴设置 在图像数据的帧内。 在确定第一多个像素值的和之后,图像处理流水线可以将第一多个像素值的和存储在存储器中,使得第一多个像素值的和代表统计。

    Ordinal and spatial local feature vector based image representation
    40.
    发明授权
    Ordinal and spatial local feature vector based image representation 失效
    有序和空间局部特征向量的图像表示

    公开(公告)号:US08548237B2

    公开(公告)日:2013-10-01

    申请号:US12906831

    申请日:2010-10-18

    IPC分类号: G06K9/00

    CPC分类号: G06K9/4642

    摘要: A local image patch identified in an image is divided into respective sub-patches of respective image forming elements. For each of the respective image forming elements in the local image patch, a respective ordinal rank of the image forming element is determined, and respective contributions of the image forming element to a particular one of the respective sub-patches containing the image forming element and to one or more other ones of the respective sub-patches neighboring the particular sub-patch are ascertained. Each ordinal rank corresponds to a respective dimension of an ordinal rank feature space. For each of the respective sub-patches of the local image patch, a respective histogram of ascertained contributions of the image forming elements in the ordinal rank feature space is built. A respective feature vector representing the local image patch is generated from the respective histograms built for the sub-patches of the local image.

    摘要翻译: 在图像中识别的局部图像块被分成各个图像形成元件的各个子块。 对于局部图像贴片中的各个图像形成元件中的每一个,确定图像形成元件的相应序数等级,并且确定图像形成元件对包含图像形成元件的各个子贴片中的特定一个的各自贡献,以及 确定与特定子贴片相邻的相应子贴片中的一个或多个其他贴片。 每个序数等级对应于序数秩特征空间的相应维度。 对于局部图像贴片的各个子贴片中的每一个,构建了排序特征空间中图像形成元素的确定贡献的相应直方图。 从针对本地图像的子片段构建的各个直方图生成表示本地图像片段的相应特征矢量。