Apparatus and method of processing image data
    2.
    发明授权
    Apparatus and method of processing image data 有权
    处理图像数据的装置和方法

    公开(公告)号:US06771271B2

    公开(公告)日:2004-08-03

    申请号:US10170604

    申请日:2002-06-13

    IPC分类号: G06F1300

    CPC分类号: G06T1/60

    摘要: A relatively high speed circular memory device, in combination with other processes, improves image processing efficiency. To that end, a method and apparatus of processing image data stored in an initial memory logically divides the image into a plurality of contiguous strips. A first plurality of the strips are stored in a working memory having a circular addressing arrangement, where the working memory is faster than the initial memory and has a plurality of sequential address locations. The first plurality of strips are contiguous and have a start address. In addition, the first plurality of strips are stored in the working memory in a contiguous manner, and processed through the working memory relative to the start address.

    摘要翻译: 与其他工艺相结合的相对高速的圆形存储器件提高了图像处理效率。 为此,将存储在初始存储器中的图像数据进行处理的方法和装置将图像逻辑地划分成多个连续的条带。 第一组多个条被存储在具有圆形寻址布置的工作存储器中,其中工作存储器比初始存储器快,并且具有多个顺序地址位置。 第一组多个条带是连续的并且具有起始地址。 此外,第一多个条以连续的方式存储在工作存储器中,并且通过工作存储器相对于起始地址进行处理。

    Impedance compensation for a cable and connector
    3.
    发明授权
    Impedance compensation for a cable and connector 有权
    电缆和连接器的阻抗补偿

    公开(公告)号:US06356162B1

    公开(公告)日:2002-03-12

    申请号:US09286113

    申请日:1999-04-02

    IPC分类号: H01P500

    CPC分类号: H03H7/383

    摘要: In an interconnection system including a cable and connectors, compensation is provided for stray reactances found in the connector elements. The connector elements may be RJ-style connector plug and jack pairs, which exhibit characteristic capacitive and inductive properties. The compensation is capacitive and/or inductive elements formed in the cable, components of the connectors, or an external printed wiring board. A double &pgr;-network is the preferred circuit topology for the compensated system.

    摘要翻译: 在包括电缆和连接器的互连系统中,为连接器元件中发现的杂散电抗提供补偿。 连接器元件可以是RJ型连接器插头和插座对,其具有特征的电容和电感特性。 补偿是形成在电缆中的电容和/或电感元件,连接器的部件或外部印刷线路板。 双pi网络是补偿系统的优选电路拓扑。

    Half pixel interpolator for video motion estimation accelerator
    4.
    发明授权
    Half pixel interpolator for video motion estimation accelerator 有权
    用于视频运动估计加速器的半像素内插器

    公开(公告)号:US08509567B2

    公开(公告)日:2013-08-13

    申请号:US12136492

    申请日:2008-06-10

    IPC分类号: G06K9/32 G06F7/38 G09G5/00

    摘要: Methods and an apparatus are provided for interpolation of pixels in a pixel array having rows and columns of pixels. The apparatus includes a shift register array to shift pixel values of the pixel array, the shift register array including two or more shift registers; an interpolation filter array interconnected to the shift register array, the interpolation filter array including one or more interpolation filters; and a controller configured to provide pixel values in columns of the pixel array from the shift register array to respective interpolation filters in a first mode and configured to provide pixel values in rows of the pixel array from the shift register array to respective interpolation filters in a second mode. The controller may be configured to supply vertical sub-pixel values from the shift register array to the interpolation filters to generate diagonal sub-pixel values.

    摘要翻译: 提供了用于内插具有行和列像素的像素阵列中的像素的方法和装置。 该装置包括用于移位像素阵列的像素值的移位寄存器阵列,该移位寄存器阵列包括两个或多个移位寄存器; 互连到移位寄存器阵列的插值滤波器阵列,所述插值滤波器阵列包括一个或多个插值滤波器; 以及控制器,被配置为以第一模式将来自移位寄存器阵列的像素阵列的列中的像素值提供给第一模式的各个内插滤波器,并且被配置为将像素阵列中的像素值从移位寄存器阵列提供给相应的内插滤波器 第二模式。 控制器可以被配置为将来自移位寄存器阵列的垂直子像素值提供给内插滤波器以产生对角子像素值。

    Randomly sub-sampled partition voting (RSVP) algorithm for scene change detection
    5.
    发明申请
    Randomly sub-sampled partition voting (RSVP) algorithm for scene change detection 审中-公开
    用于场景变化检测的随机子采样分区投票(RSVP)算法

    公开(公告)号:US20070160288A1

    公开(公告)日:2007-07-12

    申请号:US11638951

    申请日:2006-12-14

    IPC分类号: G06K9/00 G06K9/34

    摘要: A system and method for scene change detection in a video sequence employing a randomly sub-sampled partition voting (RSPV) algorithm is provided. In the video sequence, a current frame is divided into a number of partitions. Each partition is randomly sub-sampled and a histogram of the pixel intensity values is built to determine whether the current partition differs from the corresponding partition in a reference frame. A bin-by-bin absolute histogram difference between a partition in the current frame and a co-located partition in the reference frame is calculated. The histogram difference is compared to an adaptive threshold. If the majority of the examined partitions has significant changes, a scene change is detected. The RSPV algorithm is motion-independent and characterized by a significantly reduced cost of memory access and computations.

    摘要翻译: 提供了一种使用随机子采样分区投票(RSPV)算法的视频序列中的场景变化检测的系统和方法。 在视频序列中,当前帧被划分成多个分区。 每个分区被随机子采样,并且构建像素强度值的直方图以确定当前分区是否与参考帧中的对应分区不同。 计算当前帧中的分区与参考帧中的同位置分区之间的逐位绝对直方图差异。 将直方图差异与自适应阈值进行比较。 如果被检查的大部分分区有显着的变化,则检测到场景变化。 RSPV算法是运​​动无关的,其特征在于显着降低了存储器访问和计算的成本。

    Prismatic toroidal lens and traffic signal light using this lens
    6.
    发明授权
    Prismatic toroidal lens and traffic signal light using this lens 失效
    棱镜环形透镜和交通信号灯使用这个镜头

    公开(公告)号:US5636057A

    公开(公告)日:1997-06-03

    申请号:US386548

    申请日:1995-02-10

    摘要: A traffic signal light comprises an array of light-emitting diodes for producing respective light rays, and an array of lenses for propagating light rays from the light-emitting diodes toward a plurality of predetermined, distinct spatial points. The lenses are each associated with a corresponding one of the light-emitting diodes, and each lens comprises a solid body of light-propagating material defining a light-refracting surface through which the light rays from the corresponding light-emitting diode propagate. The light-refracting surface is divided into distinct light-refracting surface sections each associated to a corresponding one of the spatial points. The light-refracting surface sections have different configurations in view of deviating the light rays propagating therethrough toward the associated spatial points, respectively. Therefore, at each spatial point add the light rays deviated by the associated light-refracting surface sections of the different lenses.

    摘要翻译: 交通信号灯包括用于产生各个光线的发光二极管的阵列和用于将来自发光二极管的光线传播到多个预定的不同空间点的透镜阵列。 透镜各自与相应的一个发光二极管相关联,并且每个透镜包括限定光折射表面的光传播材料的固体,通过该光折射表面来自相应的发光二极管的光线传播。 光折射表面被分成不同的光折射表面部分,每个区域与相应的一个空间点相关联。 鉴于将分别向其传播的光线偏向相关联的空间点,光折射表面部分具有不同的构造。 因此,在每个空间点处增加由不同透镜的相关联的光折射表面部分偏离的光线。

    Double refraction and total reflection solid nonimaging lens
    7.
    发明授权
    Double refraction and total reflection solid nonimaging lens 失效
    双折射和全反射固体非成像透镜

    公开(公告)号:US5343330A

    公开(公告)日:1994-08-30

    申请号:US33794

    申请日:1993-03-18

    摘要: A nonimaging lens consists of a solid body of light-propagating material defining a first light-refracting surface, a second light-reflecting surface and a third light-refracting surface. To redirect the generally parallel light rays of a directional light beam, the first light-refracting surface diverges the light rays of this beam, the second surface reflects the divergent light rays, and the third surface refracts these reflected light rays. To concentrate dispersed light rays into a generally directional light beam, the third surface first refracts the light rays, the second light-reflecting surface converges these refracted light rays, and the first surface refracts the convergent light rays toward the generally directional light beam. In accordance with one embodiment, the first light-refracting surface and the second light-reflecting surface are conical, open out in opposite directions, and respectively define skewed refraction and reflection axes.

    摘要翻译: 非成像透镜由限定第一光折射表面,第二光反射表面和第三光折射表面的光传播材料的固体体组成。 为了重定向光束的大致平行的光线,第一光折射表面分散该光束的光线,第二表面反射发散的光线,并且第三表面折射这些反射的光线。 为了将分散的光线集中到大致定向的光束中,第三表面首先折射光线,第二光反射表面会聚这些折射光线,并且第一表面将会聚光线朝向大致定向的光束折射。 根据一个实施例,第一光折射表面和第二光反射表面是圆锥形的,在相反方向上开口,并且分别限定倾斜的折射和反射轴。

    Motion estimation using prediction guided decimated search
    8.
    发明授权
    Motion estimation using prediction guided decimated search 有权
    运动估计使用预测指导抽取搜索

    公开(公告)号:US08406303B2

    公开(公告)日:2013-03-26

    申请号:US11638838

    申请日:2006-12-14

    IPC分类号: H04N11/04

    摘要: A method and apparatus utilizing a prediction guided decimated search motion estimation algorithm are provided. The prediction guided decimated search motion estimation algorithm generates a motion vector used to encode a macroblock in a frame from a video sequence. The algorithm includes generating full-pixel seed vectors, performing a full-pixel search around the generated seed vectors, which is followed by a fractional pixel search. The full-pixel seed vectors generated are a predicted motion vector and a hierarchical motion vector. A fractional pixel search may be conducted around a final motion vector generated by the full-pixel search and may include a half-pixel search and a quarter-pixel search. The prediction guided decimated search motion estimation algorithm can be implemented in both software and hardware. The algorithm is characterized by improved efficiency, scalability, and decreased complexity.

    摘要翻译: 提供了利用预测引导抽取搜索运动估计算法的方法和装置。 预测引导抽取搜索运动估计算法生成用于对来自视频序列的帧中的宏块进行编码的运动矢量。 该算法包括生成全像素种子矢量,围绕生成的种子矢量执行全像素搜索,其后跟分数像素搜索。 生成的全像素种子矢量是预测运动矢量和分层运动矢量。 可以围绕由全像素搜索生成的最终运动矢量进行分数像素搜索,并且可以包括半像素搜索和四分之一像素搜索。 预测引导的抽取搜索运动估计算法可以在软件和硬件两个方面实现。 该算法的特征在于提高效率,可扩展性和降低的复杂性。

    Motion estimation using prediction guided decimated search
    9.
    发明申请
    Motion estimation using prediction guided decimated search 有权
    运动估计使用预测指导抽取搜索

    公开(公告)号:US20070183504A1

    公开(公告)日:2007-08-09

    申请号:US11638838

    申请日:2006-12-14

    IPC分类号: H04N11/02 H04N7/12

    摘要: A method and apparatus utilizing a prediction guided decimated search motion estimation algorithm are provided. The prediction guided decimated search motion estimation algorithm generates a motion vector used to encode a macroblock in a frame from a video sequence. The algorithm includes generating full-pixel seed vectors, performing a full-pixel search around the generated seed vectors, which is followed by a fractional pixel search. The full-pixel seed vectors generated are a predicted motion vector and a hierarchical motion vector. A fractional pixel search may be conducted around a final motion vector generated by the full-pixel search and may include a half-pixel search and a quarter-pixel search. The prediction guided decimated search motion estimation algorithm can be implemented in both software and hardware. The algorithm is characterized by improved efficiency, scalability, and decreased complexity.

    摘要翻译: 提供了利用预测引导抽取搜索运动估计算法的方法和装置。 预测引导抽取搜索运动估计算法生成用于对来自视频序列的帧中的宏块进行编码的运动矢量。 该算法包括生成全像素种子矢量,围绕生成的种子矢量执行全像素搜索,其后跟分数像素搜索。 生成的全像素种子矢量是预测运动矢量和分层运动矢量。 可以围绕由全像素搜索生成的最终运动矢量进行分数像素搜索,并且可以包括半像素搜索和四分之一像素搜索。 预测引导的抽取搜索运动估计算法可以在软件和硬件两个方面实现。 该算法的特征在于提高效率,可扩展性和降低的复杂性。

    Method for efficiently computing a fast fourier transform
    10.
    发明授权
    Method for efficiently computing a fast fourier transform 有权
    用于有效计算快速傅里叶变换的方法

    公开(公告)号:US07062523B1

    公开(公告)日:2006-06-13

    申请号:US09630258

    申请日:2000-08-01

    IPC分类号: G06F15/00

    CPC分类号: G06F17/142

    摘要: A method for computing an out of place FFT in which each stage of the FFT has an identical signal flow geometry. In each stage of the presently disclosed FFT method the group loop has been eliminated, the twiddle factor data is stored in bit-reversed manner, and the output data values are stored with a unity stride.

    摘要翻译: 一种计算不合格FFT的方法,其中FFT的每一级具有相同的信号流几何形状。 在目前公开的FFT方法的每个阶段中,组循环已被消除,旋转因子数据以位反转的方式存储,并且以单位步幅存储输出数据值。