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    Face recognition performance using additional image features
    1.
    发明授权
    Face recognition performance using additional image features 有权

    公开(公告)号：US09323979B2

    公开(公告)日：2016-04-26

    申请号：US14562366

    申请日：2014-12-05

    申请人： DigitalOptics Corporation Europe Limited

    发明人： Petronel Bigioi ,  Gabriel Costache ,  Alexandru Drimbarean ,  Peter Corcoran

    IPC分类号： G06K9/00

    CPC分类号： G06K9/00295 ,  G06K9/00248 ,  G06K9/00261 ,  G06K9/4604

    摘要： A technique is provided for recognizing faces in an image stream using a digital image acquisition device. A first acquired image is received from an image stream. A first face region is detected within the first acquired image having a given size and a respective location within the first acquired image. First faceprint data uniquely identifying the first face region are extracted along with first peripheral region data around the first face region. The first faceprint and peripheral region data are stored, and the first peripheral region data are associated with the first face region. The first face region is tracked until a face lock is lost. A second face region is detected within a second acquired image from the image stream. Second peripheral region data around the second face region are extracted. The second face region is identified upon matching the first and second peripheral region data.

    Method and system for correcting a distorted input image
    2.
    发明授权
    Method and system for correcting a distorted input image 有权
    用于校正失真输入图像的方法和系统

    公开(公告)号：US08928730B2

    公开(公告)日：2015-01-06

    申请号：US13541650

    申请日：2012-07-03

    申请人： Piotr Stec ,  Alexei Pososin ,  Mihai Munteanu ,  Corneliu Zaharia

    发明人： Piotr Stec ,  Alexei Pososin ,  Mihai Munteanu ,  Corneliu Zaharia

    IPC分类号： G06T5/00 ,  H04N5/225

    CPC分类号： G06T5/001 ,  G06T5/006 ,  G06T2207/20021 ,  G06T2207/20172 ,  H04N5/23229

    摘要： A method for correcting a distorted input image includes determining a local region of an image to be displayed and dividing the region into an array of rectangular tiles, each tile corresponding to a distorted tile with a non-rectangular boundary within the input image. For each tile of the local region, maximum and minimum memory address locations of successive rows of the input image sufficient to span the boundary of the distorted tile are determined. Successive rows of the distorted input from between the maximum and minimum addresses are read. Distortion of the non-rectangular portion of the distorted input image is corrected to provide a tile of a corrected output image which is stored.

    摘要翻译： 用于校正失真的输入图像的方法包括确定要显示的图像的局部区域，并将该区域划分为矩形瓦片的阵列，每个瓦片对应于输入图像内具有非矩形边界的失真瓦片。 对于局部区域的每个瓦片，确定足够跨越失真瓦片的边界的输入图像的连续行的最大和最小存储器地址位置。 读取从最大和最小地址之间的失真输入的连续行。 纠正失真输入图像的非矩形部分的失真以提供存储的校正输出图像的图块。

    Image defect map creation using batches of digital images
    4.
    发明授权
    Image defect map creation using batches of digital images 有权
    图像缺陷图创建使用批次的数字图像

    公开(公告)号：US08879869B2

    公开(公告)日：2014-11-04

    申请号：US13748584

    申请日：2013-01-23

    申请人： DigitalOptics Corporation Europe Limited

    发明人： Marta Zamfir ,  Eran Steinberg ,  Yury Prilutsky ,  Peter Corcoran ,  Petronel Bigioi ,  Adrian Zamfir

    IPC分类号： G06K9/40 ,  H04N5/217 ,  G06T5/00 ,  H04N5/367

    CPC分类号： G06T5/002 ,  G06T5/005 ,  H04N5/217 ,  H04N5/2171 ,  H04N5/367

    摘要： A method of automatically determining a need to service a digital image acquisition system including a digital camera with a lens assembly includes analyzing pixels within one or more acquired digital images according to probability determinations that such pixels correspond to blemish artifacts. It is automatically determined whether a threshold distribution of blemish artifacts is present within one or more of the digital images. A need for service is indicated when at least the threshold distribution is determined to be present.

    摘要翻译： 一种自动确定包括具有透镜组件的数字照相机的数字图像采集系统的需要的方法包括根据这些像素对应于瑕疵伪影的概率确定来分析一个或多个所获取的数字图像内的像素。 自动确定在一个或多个数字图像内是否存在瑕疵伪影的阈值分布。 当至少确定阈值分布存在时，指示服务需要。

    Automatic detection of vertical gaze using an embedded imaging device
    5.
    发明授权
    Automatic detection of vertical gaze using an embedded imaging device 有权
    使用嵌入式成像装置自动检测垂直注视

    公开(公告)号：US08836777B2

    公开(公告)日：2014-09-16

    申请号：US13035907

    申请日：2011-02-25

    申请人： Sumat Mehra

    发明人： Sumat Mehra

    IPC分类号： H04N9/47 ,  G06K9/46 ,  G09G5/00 ,  G06F3/01 ,  G06K9/00

    CPC分类号： G06F3/013 ,  G06K9/00315 ,  G06K9/00335 ,  G06K9/00597 ,  G09C5/00

    摘要： A method of detecting and applying a vertical gaze direction of a face within a digital image includes analyzing one or both eyes of a face within an acquired image, including determining a degree of coverage of an eye ball by an eye lid within the digital image. Based on the determined degree of coverage of the eye ball by the eye lid, an approximate direction of vertical eye gaze is determined. A further action is selected based on the determined approximate direction of vertical eye gaze.

    摘要翻译： 检测和应用数字图像内的脸部的垂直注视方向的方法包括分析所获取的图像内的脸部的一只眼睛或两只眼睛，包括确定数字图像内的眼睑的眼球的覆盖程度。 根据眼睛眼睛确定的眼球覆盖程度，确定垂直眼睛注视的近似方向。 基于确定的垂直眼睛凝视的近似方向来选择进一步的动作。

    Techniques for reducing noise while preserving contrast in an image
    9.
    发明授权
    Techniques for reducing noise while preserving contrast in an image 有权
    降低噪音同时保留图像对比度的技术

    公开(公告)号：US08723879B2

    公开(公告)日：2014-05-13

    申请号：US12996284

    申请日：2009-06-05

    申请人： Noy Cohen

    发明人： Noy Cohen

    IPC分类号： G09G5/02

    CPC分类号： G06T5/20 ,  G06T5/002 ,  G06T2207/10024

    摘要： A system and method for reducing noise in images is disclosed. The present invention reduces noise and preserves contrast of an image to be displayed, the image having pixels, by (1) comparing a value of a first pixel to values of a set of other pixels; (2) comparing values of pixels neighboring the first pixel to values of further pixels neighboring the set of other pixels; (3) determining, for each pixel in the set of other pixels, a weight based on results of steps (1) and (2); (4) calculating a de-noised pixel value based on the weights of each pixel in the set of other pixels; and (5) replacing the value of the first pixel with the de-noised pixel value.

    摘要翻译： 公开了一种降低图像噪声的系统和方法。 本发明通过（1）将第一像素的值与一组其他像素的值相比较来减少噪声并保持要显示的图像的对比度，具有像素的图像; （2）将与第一像素相邻的像素的值与其余像素的集合相邻的另外的像素的值进行比较; （3）针对所述一组其他像素中的每个像素，确定基于步骤（1）和（2）的结果的权重; （4）基于所述一组其他像素中的每个像素的权重来计算去噪像素值; 和（5）用去噪像素值代替第一像素的值。

    Continuous edge and detail mapping using a weighted monotony measurement
    10.
    发明授权
    Continuous edge and detail mapping using a weighted monotony measurement 有权
    使用加权单调测量的连续边缘和细节映射

    公开(公告)号：US08687894B2

    公开(公告)日：2014-04-01

    申请号：US12905367

    申请日：2010-10-15

    申请人： Orly Liba ,  Noy Cohen ,  Jeffrey Danowitz

    发明人： Orly Liba ,  Noy Cohen ,  Jeffrey Danowitz

    IPC分类号： G06K9/48 ,  G06K9/56

    CPC分类号： G06T7/44

    摘要： In an embodiment, a device comprises a plurality of elements configured to apply a filter to multiple groups of pixels in a neighborhood of pixels surrounding a particular pixel to generate a matrix of filtered values; compute, from the matrix of filtered values, a first set of gradients along a first direction and a second set of gradients along a second and different direction; determine how many directional changes are experienced by the gradients in the first set of gradients and the gradients in the second set of gradients; compute a first weighted value for a first direction and a second weighted value for a second direction; and based, at least in part, upon the first and second weighted values, compute an overall texture characterization value for the particular pixel, wherein the overall texture characterization value indicates a type of image environment in which the particular pixel is located.

    摘要翻译： 在一个实施例中，设备包括多个元件，其被配置为将滤波器应用于围绕特定像素的像素周围的多个像素组，以生成滤波值的矩阵; 从滤波值的矩阵中计算沿着第一方向的第一梯度梯度和沿着第二方向和不同方向的第二梯度集合; 确定第一组梯度中的梯度和第二组梯度中的梯度经历了多少方向变化; 计算第一方向的第一加权值和第二方向的第二加权值; 并且至少部分地基于第一和第二加权值来计算特定像素的总体纹理表征值，其中整体纹理表征值指示特定像素所在的图像环境的类型。