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    Systems and methods for determining noise statistics of image data
    1.
    发明授权
    Systems and methods for determining noise statistics of image data 有权
    用于确定图像数据噪声统计的系统和方法

    公开(公告)号：US08953882B2

    公开(公告)日：2015-02-10

    申请号：US13485299

    申请日：2012-05-31

    申请人： Suk Hwan Lim ,  D. Amnon Silverstein ,  Mark A. Zimmer ,  Guy Cote

    发明人： Suk Hwan Lim ,  D. Amnon Silverstein ,  Mark A. Zimmer ,  Guy Cote

    IPC分类号： G06K9/00 ,  H04N5/217

    CPC分类号： G06T1/20 ,  H04N17/002

    摘要： The present disclosure generally relates to systems and methods for image data processing. In certain embodiments, an image processing pipeline may compute noise statistics associated with image data by receiving a frame of the image data having a plurality of pixels. The image processing pipeline may then identify a plurality of portions of the frame of the image data such that each portion of the plurality of portions has a flat surface. The image processing pipeline may then calculate a plurality of gradients for each portion of the plurality of portions, determine one or more dominant gradient orientations for each portion of the plurality of portions, and generate a histogram that represents a plurality of dominant gradient orientations that corresponds to the plurality of portions. After generating the histogram, the image processing pipeline may store the histogram, which may represent the noise statistics, in a memory.

    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具有多个像素的图像数据的帧来计算与图像数据相关联的噪声统计。 然后，图像处理流水线可以识别图像数据的帧的多个部分，使得多个部分的每个部分具有平坦表面。 然后，图像处理流水线可以为多个部分的每个部分计算多个梯度，为多个部分的每个部分确定一个或多个主要梯度取向，并且生成表示对应于多个部分的多个主要梯度取向的直方图 到多个部分。 在生成直方图之后，图像处理流水线可以将可以表示噪声统计的直方图存储在存储器中。

    SYSTEMS AND METHODS FOR HIGHLIGHT RECOVERY IN AN IMAGE SIGNAL PROCESSOR
    2.
    发明申请
    SYSTEMS AND METHODS FOR HIGHLIGHT RECOVERY IN AN IMAGE SIGNAL PROCESSOR 有权
    图像信号处理器中亮度恢复的系统和方法

    公开(公告)号：US20130321679A1

    公开(公告)日：2013-12-05

    申请号：US13485199

    申请日：2012-05-31

    申请人： Suk Hwan Lim ,  David Hayward ,  D. Amnon Silverstein

    发明人： Suk Hwan Lim ,  David Hayward ,  D. Amnon Silverstein

    IPC分类号： H04N9/68

    CPC分类号： H04N5/23229 ,  H04N5/2355 ,  H04N9/045 ,  H04N2209/046

    摘要： Image sensors have finite ranges of illuminance that may be captured. When the sensors for particular pixels receive an amount of light exceeding these finite ranges, the pixel values clip to the maximum pixel value. Systems and methods for estimating pixel values that are clipped or near clipping are provided. In one example, a method for processing image data includes determining that a first channel of the image data is saturated or near saturation. The method further includes computing a highlight recovery value for the first channel based upon alternative channels in the image data that are not saturated or near saturation. The highlight recovery value is applied to the first channel.

    摘要翻译： 图像传感器有可能被捕获的有限的照度范围。 当特定像素的传感器接收到超过这些有限范围的光量时，像素值将剪切到最大像素值。 提供了用于估计被裁剪或接近裁剪的像素值的系统和方法。 在一个示例中，用于处理图像数据的方法包括确定图像数据的第一通道饱和或接近饱和。 该方法还包括基于不饱和或接近饱和的图像数据中的替代信道来计算第一信道的高亮恢复值。 高亮恢复值应用于第一个通道。

    SYSTEMS AND METHODS FOR LENS SHADING CORRECTION
    3.
    发明申请
    SYSTEMS AND METHODS FOR LENS SHADING CORRECTION 有权
    镜头校正校正系统及方法

    公开(公告)号：US20130321678A1

    公开(公告)日：2013-12-05

    申请号：US13485235

    申请日：2012-05-31

    申请人： Guy Cote ,  Joseph Anthony Petolino, JR. ,  Suk Hwan Lim ,  D. Amnon Silverstein

    发明人： Guy Cote ,  Joseph Anthony Petolino, JR. ,  Suk Hwan Lim ,  D. Amnon Silverstein

    IPC分类号： H04N9/64 ,  G06K9/00

    CPC分类号： H04N9/64 ,  H04N5/142 ,  H04N5/23229 ,  H04N5/23254 ,  H04N5/365 ,  H04N5/367 ,  H04N9/045 ,  H04N9/735

    摘要： Systems and methods for correcting intensity drop-offs due to geometric properties of lenses are provided. In one example, a method includes receiving an input pixel of the image data, the image data acquired using an image sensor. A color component of the input pixel is determined. A gain grid is determined by pointing to the gain grid in external memory. Each of the plurality of grid points is associated with a lens shading gain selected based upon the color of the input pixel. A nearest set of grid points that enclose the input pixel is identified. Further, a lens shading gain is determined by interpolating the lens shading gains associated with each of the set of grid points and is applied to the input pixel.

    摘要翻译： 提供了由于透镜的几何特性来校正强度降低的系统和方法。 在一个示例中，一种方法包括接收图像数据的输入像素，使用图像传感器获取的图像数据。 确定输入像素的颜色分量。 通过指向外部存储器中的增益栅格来确定增益栅格。 多个网格点中的每一个都与基于输入像素的颜色选择的透镜阴影增益相关联。 识别包围输入像素的最近的一组网格点。 此外，通过内插与该组网格点中的每一个相关联的透镜遮蔽增益来确定透镜阴影增益，并将其应用于输入像素。

    SYSTEMS AND METHOD FOR REDUCING FIXED PATTERN NOISE IN IMAGE DATA
    4.
    发明申请
    SYSTEMS AND METHOD FOR REDUCING FIXED PATTERN NOISE IN IMAGE DATA 审中-公开
    用于减少图像数据中固定图案噪声的系统和方法

    公开(公告)号：US20130321671A1

    公开(公告)日：2013-12-05

    申请号：US13485101

    申请日：2012-05-31

    申请人： Guy Cote ,  D. Amnon Silverstein ,  Suk Hwan Lim ,  Sheng Lin ,  Haitao Guo

    发明人： Guy Cote ,  D. Amnon Silverstein ,  Suk Hwan Lim ,  Sheng Lin ,  Haitao Guo

    IPC分类号： H04N5/217

    CPC分类号： 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.

    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被配置为接收具有使用数字图像传感器获取的多个像素的图像数据的帧。 然后，图像处理流水线可以被配置为确定可修正多个像素中的每个像素以用于固定模式噪声的第一多个校正因子。 可以至少部分地基于对应于图像数据的帧的固定模式噪声统计来确定第一多个校正因子。 在确定了第一多个校正因子之后，图像处理流水线可以被配置为将多个第一校正因子应用于多个像素，从而减少存在于多个像素中的固定模式噪声。

    System and method of aligning images
    5.
    发明授权
    System and method of aligning images 有权
    系统和图像对齐方法

    公开(公告)号：US07756358B2

    公开(公告)日：2010-07-13

    申请号：US11000660

    申请日：2004-11-30

    申请人： Yining Deng ,  D. Amnon Silverstein

    发明人： Yining Deng ,  D. Amnon Silverstein

    IPC分类号： G06K9/32

    CPC分类号： G06T3/0075 ,  G06T7/30 ,  G06T2207/20016

    摘要： A method performed by a processing system. The method includes receiving a sequence of frames, each frame comprising a sequence of at least two images, each image at a different image position in the sequence and each pair of adjacent images having an overlap region. A local alignment value is determined for the images of each pair of adjacent image positions of each frame based on minimizing a difference of a desired parameter between the images in the overlap region. Global alignment values are determined for all images at corresponding pairs of adjacent image positions of each frame based on the local alignment values for the images at the corresponding pair of adjacent image positions of each frame. Each global alignment value is applied to at least one image of the images of the corresponding pair of adjacent image positions of each frame.

    摘要翻译： 一种由处理系统执行的方法。 该方法包括接收帧序列，每个帧包括至少两个图像的序列，序列中不同图像位置处的每个图像和每对相邻图像具有重叠区域。 基于最小化重叠区域中的图像之间的期望参数的差异，确定每帧的每对相邻图像位置的图像的局部对准值。 基于每个帧的相应对相邻图像位置对上的图像的局部对准值，为每帧的相应对的相邻图像位置的所有图像确定全局对准值。 每个全局对准值被应用于每帧相应的一对相邻图像位置的图像的至少一个图像。

    Remote high resolution photography and video recording using a streaming video as a view-finder
    7.
    发明授权
    Remote high resolution photography and video recording using a streaming video as a view-finder 有权
    使用流式视频作为取景器进行远程高分辨率摄影和录像

    公开(公告)号：US07450157B2

    公开(公告)日：2008-11-11

    申请号：US10023951

    申请日：2001-12-21

    申请人： Pere Obrador ,  Daniel Tretter ,  D. Amnon Silverstein

    发明人： Pere Obrador ,  Daniel Tretter ,  D. Amnon Silverstein

    IPC分类号： H04N5/225

    CPC分类号： H04N21/478 ,  G06Q10/10 ,  H04N21/235 ,  H04N21/23614 ,  H04N21/2543 ,  H04N21/2747 ,  H04N21/4348 ,  H04N21/6377 ,  H04N21/658 ,  H04N21/6587 ,  H04N21/8153

    摘要： Using a joint video and still image pipeline technology, a network may be deployed through the Internet so that a user may acquire a remote high resolution photograph using a low resolution video streamed from a remote camera as a view-finder. The remote camera may enable the user to exercise control from a remote device through the network or other communication channels. A network server may store the video and the high resolution photograph, and either sends the video and the high resolution photograph to the user upon payment or posts the video and the high resolution photograph on a web page.

    摘要翻译： 使用联合视频和静止图像流水线技术，可以通过因特网部署网络，使得用户可以使用从远程相机流传输的低分辨率视频作为查阅器来获取远程高分辨率照片。 远程摄像机可以使得用户能够通过网络或其他通信信道从远程设备进行控制。 网络服务器可以存储视频和高分辨率照片，并且在付款时将视频和高分辨率照片发送给用户，或者在网页上张贴视频和高分辨率照片。

    System and method of aligning images
    8.
    发明申请
    System and method of aligning images 有权
    系统和图像对齐方法

    公开(公告)号：US20060115181A1

    公开(公告)日：2006-06-01

    申请号：US11000660

    申请日：2004-11-30

    申请人： Yining Deng ,  D. Amnon Silverstein

    发明人： Yining Deng ,  D. Amnon Silverstein

    IPC分类号： G06K9/36

    CPC分类号： G06T3/0075 ,  G06T7/30 ,  G06T2207/20016

    摘要： A method performed by a processing system. The method includes receiving a sequence of frames, each frame comprising a sequence of at least two images, each image at a different image position in the sequence and each pair of adjacent images having an overlap region. A local alignment value is determined for the images of each pair of adjacent image positions of each frame based on minimizing a difference of a desired parameter between the images in the overlap region. Global alignment values are determined for all images at corresponding pairs of adjacent image positions of each frame based on the local alignment values for the images at the corresponding pair of adjacent image positions of each frame. Each global alignment value is applied to at least one image of the images of the corresponding pair of adjacent image positions of each frame.

    摘要翻译： 一种由处理系统执行的方法。 该方法包括接收帧序列，每个帧包括至少两个图像的序列，序列中不同图像位置处的每个图像和每对相邻图像具有重叠区域。 基于最小化重叠区域中的图像之间的期望参数的差异，确定每帧的每对相邻图像位置的图像的局部对准值。 基于每个帧的相应对相邻图像位置对上的图像的局部对准值，为每帧的相应对的相邻图像位置的所有图像确定全局对准值。 每个全局对准值被应用于每帧相应的一对相邻图像位置的图像的至少一个图像。

    Palmtop computer stand
    10.
    发明授权
    Palmtop computer stand 有权

    公开(公告)号：US06590764B2

    公开(公告)日：2003-07-08

    申请号：US09987678

    申请日：2001-11-15

    申请人： D. Amnon Silverstein

    发明人： D. Amnon Silverstein

    IPC分类号： G06F116

    CPC分类号： G06F1/166 ,  G06F1/1626 ,  G06F1/1686 ,  G06F2200/1634 ,  Y10S248/92

    摘要： A palmtop computer stand is provided. The palmtop computer stand includes a computing device, an imaging device and a cover. The imaging device pivotally couples with the computing device to capture an image of an object placed in close proximity to the computing device. The cover pivotally couples with the computing device such that the cover moves from a closed position into a lockable position. The cover supports the computing device and the imaging device at a fixed location relative to the cover in order to ensure precise image capturing of the object with the palmtop computer stand. Likewise, the cover supports a lens of the imaging device such that the lens is a fixed distance from a surface upon which the object rests.