Printer color correction
    1.
    发明申请
    Printer color correction 有权
    打印机颜色校正

    公开(公告)号:US20050093923A1

    公开(公告)日:2005-05-05

    申请号:US10818883

    申请日:2004-04-06

    IPC分类号: H04N1/60 B41J1/00

    CPC分类号: H04N1/6033

    摘要: Techniques are disclosed for performing color correction in a color printer. An RGB test image is printed to produce a printed calibration image. Colors in the printed calibration image are measured and compared to expected color values. A color corrector generates a printer lookup table (LUT) based on this comparison. The LUT may be generated based on models of the printer's print engine and previous LUTs. The color corrections are applied to subsequent print jobs to improve the quality of color output. Color measurement and correction may be performed using a closed-loop system contained within the printer that includes a color measurement device (such as a scanner) and a computer.

    摘要翻译: 公开了用于在彩色打印机中执行颜色校正的技术。 打印RGB测试图像以产生打印的校准图像。 测量印刷校准图像中的颜色并将其与预期颜色值进行比较。 颜色校正器基于该比较生成打印机查找表(LUT)。 LUT可以基于打印机的打印引擎和先前的LUT的模型生成。 颜色校正应用于后续打印作业,以提高颜色输出的质量。 可以使用包含在包括彩色测量装置(例如扫描仪)和计算机的打印机内的闭环系统来执行颜色测量和校正。

    Digital image exposure correction

    公开(公告)号:US20070036457A1

    公开(公告)日:2007-02-15

    申请号:US11546633

    申请日:2006-10-12

    IPC分类号: G06K9/40

    CPC分类号: H04N1/4072

    摘要: Techniques are disclosed for correcting the exposure of a digital image. An exposure predictor may be generated based on a set of images for which ground truth data are known. After identifying an optimal set of features, the exposure of the digital image may be corrected by extracting values of the selected optimal features from the image, using the predictor to predict a desired exposure correction for the image, and correcting the exposure of the image by the predicted desired amount. Exposure correction is based on a model that relates intensity of light in the world to the RGB digits of the digital image. The model comprises a gamma function that models the response of a typical monitor and a S-shaped curve that compresses the large dynamic range of the world to the small dynamic range of the RGB digit space.

    Method for Estimating Positions Using Absolute Encoders
    5.
    发明申请
    Method for Estimating Positions Using Absolute Encoders 审中-公开
    使用绝对编码器估算位置的方法

    公开(公告)号:US20130204574A1

    公开(公告)日:2013-08-08

    申请号:US13367549

    申请日:2012-02-07

    IPC分类号: G06F15/00

    CPC分类号: G01D5/34792 G01D5/2455

    摘要: A position is determined by sensing a signal corresponding to a subsequence of marks in a non-periodic sequence of the marks on a scale. A coarse position PA is determined by matching the subsequence with all possible subsequences of the non-periodic sequence. Zero-crossings corresponding to rising edges of the signal and zero-crossings corresponding to falling edges of the signal are detected. An incremental position Pi is determined using the zero-crossings. The coarse and the incremental position are summed to obtain the position.

    摘要翻译: 通过感测与标度的标记的非周期性序列中的标记的子序列相对应的信号来确定位置。 通过将子序列与非周期性序列的所有可能子序列匹配来确定粗略位置PA。 检测对应于信号的上升沿的零交叉和对应于信号的下降沿的过零点。 使用过零点确定增量位置Pi。 将粗略和增量位置相加以获得位置。

    System and Method for Determining Poses of Objects
    6.
    发明申请
    System and Method for Determining Poses of Objects 有权
    用于确定物体姿态的系统和方法

    公开(公告)号:US20110123122A1

    公开(公告)日:2011-05-26

    申请号:US12624892

    申请日:2009-11-24

    IPC分类号: G06K9/62 G06K9/46

    CPC分类号: G06T7/74 G06T2207/30164

    摘要: During pre-processing, a 3D model of the object is rendered for various poses by arranging virtual point light sources around the lens of a virtual camera. The shadows are used to obtain oriented depth edges of the object illuminated from multiple directions. The oriented depth edges are stored in a database. A camera acquires images of the scene by casting shadows onto the scene from different directions. The scene can include one or more objects arranged in arbitrary poses with respect to each other. The poses of the objects are determined by comparing the oriented depth edges obtained from the acquired images to the oriented depth edges stored in the database. The comparing evaluates, at each pixel, a cost function based on chamfer matching, which can be speed up using downhill simplex optimization.

    摘要翻译: 在预处理期间,通过在虚拟相机的镜头周围布置虚拟点光源来渲染对象的3D模型用于各种姿势。 阴影用于获得从多个方向照明的物体的定向深度边缘。 定向深度边缘存储在数据库中。 相机通过从不同的方向将阴影投射到场景上来拍摄场景的图像。 场景可以包括相对于彼此以任意姿势布置的一个或多个对象。 通过将从所获取的图像获得的定向深度边缘与存储在数据库中的定向深度边缘进行比较来确定对象的姿态。 该比较在每个像素处评估基于倒角匹配的成本函数,其可以使用下坡单工优化来加快。

    Active badge localization using passive sensors
    7.
    发明授权
    Active badge localization using passive sensors 有权
    使用无源传感器的活动徽章定位

    公开(公告)号:US08284026B2

    公开(公告)日:2012-10-09

    申请号:US12696254

    申请日:2010-01-29

    CPC分类号: G08B5/22

    摘要: A network in an environment includes passive sensors with associated sensor identification numbers. A set of active badges with associated badge identification numbers, wherein each badge is associated with an object, and wherein a particular sensor broadcasts a packet in response to detecting a particular object, wherein the packet includes the sensor identification number and a time, and only if the particular object is associated with a particular badge then the badge appends the badge identification number to the packet and broadcasts the appended packet, and the particular sensor receives and rebroadcasts the appended packet for further processing to passively and actively monitor the environment.

    摘要翻译: 环境中的网络包括具有相关传感器识别号码的无源传感器。 一组具有相关联的徽章识别号码的活动徽章,其中每个徽章与对象相关联,并且其中特定传感器响应于检测到特定对象广播分组,其中所述分组包括传感器标识号和时间,并且仅包括 如果特定对象与特定徽章相关联,则徽章将标识标识号附加到分组并广播所附加的分组,并且特定传感器接收并重播所附加的分组以进一步处理以被动地主动地监视该环境。

    SYSTEM AND METHOD FOR ONLINE SUBMISSION, COLLECTION, AND DISTRIBUTION OF PRODUCT AND SHOPPING RELATED INFORMATION
    8.
    发明申请
    SYSTEM AND METHOD FOR ONLINE SUBMISSION, COLLECTION, AND DISTRIBUTION OF PRODUCT AND SHOPPING RELATED INFORMATION 审中-公开
    用于在线提交,收集和分发产品和购物相关信息的系统和方法

    公开(公告)号:US20140067523A1

    公开(公告)日:2014-03-06

    申请号:US13603517

    申请日:2012-09-05

    IPC分类号: G06Q30/02

    CPC分类号: G06Q30/0277 G06Q50/01

    摘要: A method includes receiving and storing, at a server, a project listing associated with a project that includes at least one shopping-related activity and providing access to the project listing to users. The method also includes receiving, at the server, a request for participation in the project from a user and receiving, at the server, approval for an approved user to participate in the project, based on the request. The method also includes receiving, at the server, a link to content generated by the approved user, the content being associated with the approved user's performance of the at least one shopping-related activity and the content including at least one of text content, image content, and video content. The method also includes providing, at the server, access to the link to the users.

    摘要翻译: 一种方法包括在服务器处接收和存储与项目相关联的项目列表,该项目包括至少一个购物相关活动并且向用户提供对项目列表的访问。 该方法还包括在服务器处接收来自用户的参与项目的请求,并根据请求在服务器处接收批准的用户参与项目的批准。 该方法还包括在服务器处接收到由被批准的用户生成的内容的链接,所述内容与所述批准的用户对所述至少一个购物相关活动的性能相关联,并且所述内容包括文本内容,图像中的至少一个 内容和视频内容。 该方法还包括在服务器处提供对用户的链接的访问。

    Method for Identifying Faces in Images with Improved Accuracy Using Compressed Feature Vectors
    9.
    发明申请
    Method for Identifying Faces in Images with Improved Accuracy Using Compressed Feature Vectors 有权
    使用压缩特征向量在提高精度的图像中识别图像的方法

    公开(公告)号:US20100166266A1

    公开(公告)日:2010-07-01

    申请号:US12345919

    申请日:2008-12-30

    IPC分类号: G06K9/00

    摘要: A method identifies an unknown face in an input image using reference images of known faces. A Haar-like feature vector is extracted from each image. The vectors are compressed. An L1 norm is determined between the compressed feature vector of the input image and each compressed feature vector from the set of reference images to determine a most similar reference image. The identity of the face associated with the most similar reference image is assigned as the identity of the unknown face in the input image.

    摘要翻译: 一种方法使用已知面的参考图像识别输入图像中的未知面。 从每个图像中提取一个类哈特征特征向量。 向量被压缩。 在输入图像的压缩特征向量和来自参考图像集合的每个压缩特征向量之间确定L1范数,以确定最相似的参考图像。 将与最相似的参考图像相关联的面部的身份分配为输入图像中的未知脸部的身份。

    Structured light projection and acquisition
    10.
    发明授权
    Structured light projection and acquisition 有权
    结构光投射和采集

    公开(公告)号:US08634020B2

    公开(公告)日:2014-01-21

    申请号:US13436201

    申请日:2012-03-30

    申请人: Jay Thornton

    发明人: Jay Thornton

    IPC分类号: H04N5/222

    摘要: A structured light pattern is projected onto a scene using pulses of light emitted by light emitting diodes (LEDs) of the projector, wherein during the pulses of the LEDs, the LEDs are driven at an overdrive current when the LEDS are ON. A sensor of a camera only integrates light from the scene during the pulses to acquire images of the scene.

    摘要翻译: 使用由投影仪的发光二极管(LED)发射的光的脉冲将结构化光图案投影到场景上,其中在LED的脉冲期间,当LEDS导通时,LED以过驱动电流驱动。 照相机的传感器仅在脉冲期间集成来自场景的光,以获取场景的图像。