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    System and method for locating an object in an image using models
    1.
    发明授权
    System and method for locating an object in an image using models 失效
    使用模型在图像中定位对象的系统和方法

    公开(公告)号：US06792144B1

    公开(公告)日：2004-09-14

    申请号：US09518028

    申请日：2000-03-03

    Applicant: Yong Yan ,  Kiran Challapali ,  Richard Y. Chen

    Inventor： Yong Yan ,  Kiran Challapali ,  Richard Y. Chen

    IPC: G06K900

    CPC classification number: G06K9/00221

    Abstract: A method and image processing system are disclosed that extract feature information from an image using a model. An object in the image is first identified. The model is used at the front-end to quickly determine/define the approximate location/position of specific features of the object. Based in this modeling information, the location/position of the specific features are then determined. A feedback process may also be used to update/customize the model and improve performance.

    Abstract translation: 公开了一种使用模型从图像中提取特征信息的方法和图像处理系统。 首先识别图像中的对象。 该模型用于前端快速确定/定义对象的特定特征的大致位置/位置。 基于此建模信息，确定特定特征的位置/位置。 反馈过程也可用于更新/定制模型并提高性能。

    Region-based image archiving and retrieving system
    2.
    发明授权
    Region-based image archiving and retrieving system 有权
    基于区域的图像归档和检索系统

    公开(公告)号：US06502105B1

    公开(公告)日：2002-12-31

    申请号：US09232896

    申请日：1999-01-15

    Applicant: Yong Yan ,  Cedric Y. Caron ,  Kiran Challapali

    Inventor： Yong Yan ,  Cedric Y. Caron ,  Kiran Challapali

    IPC: G06F1700

    CPC classification number: G06F17/30259 ,  Y10S707/99945 ,  Y10S707/99948

    Abstract: The system disclosed herein builds a database of image-related data by inputting a plurality of images, and for each image: dividing the image into N1 (N1≧1) regions which are substantially homogenous with respect to at least one attribute of the image, generating a graph based on M1 (M1≧1) of the N1 regions, and storing data for the graph in the database. The database may then be used to determine whether a query image is similar to one or more of the plurality of images. To this end, the system inputs the query image, and divides the query image into N2 (N2≧1) regions which are substantially homogenous with respect to at least one attribute of the query image. The system then generates a graph based on M2 (M2≧1) of the N2 regions, and compares the generated graph to other graphs in the database that correspond to the plurality of images. Thereafter, an image is retrieved from memory that has a graph that is substantially similar to the generated graph.

    Abstract translation: 本文所公开的系统通过输入多个图像构建图像相关数据的数据库，并且对于每个图像：将图像分割成相对于图像的至少一个属性基本均匀的N1（N1> = 1）个区域 生成基于N1区域的M1（M1> = 1）的图形，并将图形的数据存储在数据库中。 然后可以使用数据库来确定查询图像是否类似于多个图像中的一个或多个。 为此，系统输入查询图像，并将查询图像划分成相对于查询图像的至少一个属性基本均匀的N2（N2> = 1）区域。 然后，该系统基于N2区域的M2（M2> = 1）生成图形，并且将生成的图形与数据库中对应于多个图像的其他图形进行比较。 此后，从具有基本上类似于生成的图形的图形的存储器中检索图像。

    System and method for performing region-based image retrieval using color-based segmentation
    3.
    发明授权
    System and method for performing region-based image retrieval using color-based segmentation 失效
    使用基于颜色的分割来执行基于区域的图像检索的系统和方法

    公开(公告)号：US06577759B1

    公开(公告)日：2003-06-10

    申请号：US09375951

    申请日：1999-08-17

    Applicant: Cedric Y. Caron ,  Yong Yan ,  Kiran Challapali

    Inventor： Cedric Y. Caron ,  Yong Yan ,  Kiran Challapali

    IPC: G06K934

    CPC classification number: G06K9/342 ,  G06F17/3025 ,  G06K9/4652 ,  G06T7/11 ,  G06T2207/10016

    Abstract: There is disclosed an image retrieval system for analyzing an image in a first color model format and detecting and retrieving from the image a selected image portion. The image retrieval system comprises an image processor for converting pixels in the image from the first color model format to a (Yr&thgr;) color model format, where Y is an intensity component indicating a total amount of light, r is a saturation component indicating an amount of white light mixed with a color of each pixel, and &thgr; is a hue component indicating the color of each pixel. The image processor groups spatially adjacent pixels into image regions according to hue components of the adjacent pixels and performs a merging process wherein a first image region and an adjacent second image region are merged into a composite region if a hue difference between the first and second image regions is less than a predetermined hue difference threshold. The process is repeated to continually merge regions of similar hue until no further merges can be performed.

    Abstract translation: 公开了一种图像检索系统，用于分析第一颜色模型格式的图像，并从图像中检测和检索所选择的图像部分。 图像检索系统包括用于将图像中的像素从第一颜色模型格式转换为（Yrtheta）颜色模型格式的图像处理器，其中Y是指示总光量的强度分量，r是指示量的饱和分量 的白色光与每个像素的颜色混合，θ是表示每个像素的颜色的色调分量。 图像处理器根据相邻像素的色调分量将空间相邻像素组合成图像区域，并且执行合并处理，其中如果第一图像和第二图像之间的色调差异，则第一图像区域和相邻第二图像区域被合并到复合区域中 区域小于预定色调差值阈值。 重复该过程以连续合并相似色调的区域，直到不能进一步合并为止。

    Distortion quantizer model for video encoding
    4.
    发明授权
    Distortion quantizer model for video encoding 失效
    用于视频编码的失真量化器模型

    公开(公告)号：US06687294B2

    公开(公告)日：2004-02-03

    申请号：US09844457

    申请日：2001-04-27

    Applicant: Yong Yan ,  Kiran Challapali

    Inventor： Yong Yan ,  Kiran Challapali

    IPC: H04N712

    CPC classification number: H04N19/126 ,  H04N19/147 ,  H04N19/154 ,  H04N19/60

    Abstract: A video encoder that allows for the selection of a distortion level, comprising: a selection system for selecting a target distortion level; and a system for determining a quantization parameter q that will ensure compliance with the selected target distortion level, wherein the system includes an algorithm for calculating distortion that utilizes a Gaussian distribution having a variance that is a function of the quantization parameter q. The algorithm is based on a distortion model D(q)=N(a1q2+a2q+a3, b1q2+b2q+b3), wherein N is a Gaussian distribution and a1, a2, a3, b1, b2 and b3 are distortion model parameters.

    Abstract translation: 一种允许选择失真电平的视频编码器，包括：选择系统，用于选择目标失真电平; 以及用于确定将确保符合所选择的目标失真级别的量化参数q的系统，其中所述系统包括用于计算使用具有作为量化参数q的函数的方差的高斯分布的失真的算法。 该算法基于失真模型D（q）= N（a1q2 + a2q + a3，b1q2 + b2q + b3），其中N是高斯分布，a1，a2，a3，b1，b2 b3是失真模型参数。

    MAC protocol for multi-channel wireless networks
    5.
    发明授权
    MAC protocol for multi-channel wireless networks 有权
    用于多通道无线网络的MAC协议

    公开(公告)号：US09025578B2

    公开(公告)日：2015-05-05

    申请号：US12937025

    申请日：2009-04-24

    Applicant: Carlos Cordeiro ,  Bong-Jun Ko ,  Kiran Challapali

    Inventor： Carlos Cordeiro ,  Bong-Jun Ko ,  Kiran Challapali

    IPC: H04J3/00 ,  H04W48/10 ,  H04W88/18

    CPC classification number: H04W48/10 ,  H04W88/182

    Abstract: A distributed coordination of a wireless network operating on different channels is provided by dispatching a device on each ‘home’ channel to regularly visit other ‘foreign’ channels to propagate and listen to broadcast information on these channels. The information in the broadcast packets transmitted on the home channel is relayed to the devices on the foreign channels by the dispatched device, as a ‘proxy device’ that operates on behalf of the other devices in the home channel. In a preferred embodiment, various aspects of this proxy process are optimized to reduce overhead and delays. Each channel is configured to distinguish home devices from foreign devices, to avoid contention between home and foreign devices. Acquired beacon slots on foreign channels are reserved to facilitate returning proxy devices. At the home channel, an anchor device alerts other devices of the proxy device's temporary absence and preserves the proxy device's beacon slot on the home channel.

    Abstract translation: 通过在每个“家庭”频道上发送设备来定期访问其他“外部”频道来传播和收听这些频道上的广播信息，来提供在不同频道上操作的无线网络的分布式协调。 在归属信道上发送的广播分组中的信息被分配的设备中继到外部信道上的设备，作为代表家庭信道中的其他设备操作的“代理设备”。 在优选实施例中，优化该代理过程的各个方面以减少开销和延迟。 每个通道被配置为将家用设备与外部设备区分开，以避免家庭和外部设备之间的争用。 保留在外国频道上获取的信标插槽，以方便退回代理设备。 在家庭通道，锚设备向其他设备通知代理设备暂时不存在，并在家庭通道上保留代理设备的信标时隙。

    MAC PROTOCOL FOR MULTI-CHANNEL WIRELESS NETWORKS
    6.
    发明申请
    MAC PROTOCOL FOR MULTI-CHANNEL WIRELESS NETWORKS 有权
    用于多通道无线网络的MAC协议

    公开(公告)号：US20110032912A1

    公开(公告)日：2011-02-10

    申请号：US12937025

    申请日：2009-04-24

    Applicant: Carlos Cordeiro ,  Bong-Jun Ko ,  Kiran Challapali

    Inventor： Carlos Cordeiro ,  Bong-Jun Ko ,  Kiran Challapali

    IPC: H04W48/02 ,  H04W72/04

    CPC classification number: H04W48/10 ,  H04W88/182

    Abstract: A distributed coordination of a wireless network operating on different channels is provided by dispatching a device on each ‘home’ channel to regularly visit other ‘foreign’ channels to propagate and listen to broadcast information on these channels. The information in the broadcast packets transmitted on the home channel is relayed to the devices on the foreign channels by the dispatched device, as a ‘proxy device’ that operates on behalf of the other devices in the home channel. In a preferred embodiment, various aspects of this proxy process are optimized to reduce overhead and delays. Each channel is configured to distinguish home devices from foreign devices, to avoid contention between home and foreign devices. Acquired beacon slots on foreign channels are reserved to facilitate returning proxy devices. At the home channel, an anchor device alerts other devices of the proxy device's temporary absence and preserves the proxy device's beacon slot on the home channel.

    Abstract translation: 通过在每个“家庭”频道上发送设备来定期访问其他“外部”频道来传播和收听这些频道上的广播信息，来提供在不同频道上操作的无线网络的分布式协调。 在归属信道上发送的广播分组中的信息被分配的设备中继到外部信道上的设备，作为代表家庭信道中的其他设备操作的“代理设备”。 在优选实施例中，优化该代理过程的各个方面以减少开销和延迟。 每个通道被配置为将家用设备与外部设备区分开，以避免家庭和外部设备之间的争用。 保留在外国频道上获取的信标插槽，以方便退回代理设备。 在家庭通道，锚设备向其他设备通知代理设备暂时不存在，并在家庭通道上保留代理设备的信标时隙。

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