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    System and method for locating an object in an image using models
    15.
    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
    16.
    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。

    Method of chroma-keying for a digital video compression system
    17.
    发明授权
    Method of chroma-keying for a digital video compression system 失效
    数字视频压缩系统色度键控方法

    公开(公告)号：US6084982A

    公开(公告)日：2000-07-04

    申请号：US992291

    申请日：1997-12-17

    Applicant: Kiran Challapali ,  Yingwei Chen

    Inventor： Kiran Challapali ,  Yingwei Chen

    IPC: H04N9/75 ,  H04N7/26 ,  H04N11/04

    CPC classification number: H04N9/75 ,  H04N19/124 ,  H04N19/14 ,  H04N19/152 ,  H04N19/176 ,  H04N19/186 ,  H04N19/20

    Abstract: A method of performing chroma-key coding including the steps of defining color regions and quantifying the number of pixels in the regions, classifying macroblocks in accordance with the number of pixels thus quantified, assigning chroma complexity weights for use in the computation of quantization step-size based on the classification of the macroblocks, computing the quantization step-size, performing quantization and performing variable length coding.

    Abstract translation: 一种执行色键编码的方法，包括定义颜色区域和量化该区域中的像素数量的步骤，根据如此量化的像素数量对宏块进行分类，分配用于计算量化步长的色度复杂度权重， 基于宏块的分类，计算量化步长，执行量化和执行可变长度编码。

    Method and apparatus for decoding digital video using parallel processing
    18.
    发明授权
    Method and apparatus for decoding digital video using parallel processing 失效
    使用并行处理对数字视频进行解码的方法和装置

    公开(公告)号：US5532744A

    公开(公告)日：1996-07-02

    申请号：US294124

    申请日：1994-08-22

    Applicant: Olu Akiwumi-Assani ,  Carlo Basile ,  Alan Cavallerano ,  Kiran Challapali ,  Richard Shen ,  Karl Wittig

    Inventor： Olu Akiwumi-Assani ,  Carlo Basile ,  Alan Cavallerano ,  Kiran Challapali ,  Richard Shen ,  Karl Wittig

    IPC: H04N7/26 ,  H04N7/50

    CPC classification number: H04N19/436 ,  H04N19/61 ,  H04N19/30

    Abstract: A method and decoder for decoding a hierarchically coded digital video bitstream which can process a high resolution television picture in real time and which is made, up of a number of individual decoder modules, connected in parallel, which each have less real time processing power than is necessary, but which when combined, have at least the necessary processing power needed to process the bitstream in real time. The decoder includes a system controller which detects the hierarchical code indicating bits and slices and communicates this information to a slice parser which dynamically allocates the bitstream among the digital modules as needed on a per slice basis.

    Abstract translation: 一种分层编码的数字视频比特流的解码方法和解码器，其可以实时处理高分辨率电视图像，并且由并行连接的多个单独的解码器模块构成，每个解码器模块的实时处理能力都比 是必要的，但是当组合时，至少具有实时处理比特流所需的必要处理能力。 解码器包括系统控制器，其检测指示比特和片段的分层代码，并将该信息传送到片分析器，根据需要在每个片基的基础上动态地分配数字模块中的比特流。

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