ROBUST FEATURE MATCHING FOR VISUAL SEARCH
    12.
    发明申请
    ROBUST FEATURE MATCHING FOR VISUAL SEARCH 审中-公开
    强大的功能匹配视觉搜索

    公开(公告)号:WO2012142483A1

    公开(公告)日:2012-10-18

    申请号:PCT/US2012/033620

    申请日:2012-04-13

    CPC classification number: G06F17/30247 G06K9/62 G06K9/627

    Abstract: Techniques are disclosed for performing robust feature matching for visual search. An apparatus comprising an interface and a feature matching unit may implement these techniques. The interface receives a query feature descriptor. The feature matching unit then computes a distance between a query feature descriptor and reference feature descriptors and determines a first group of the computed distances and a second group of the computed distances in accordance with a clustering algorithm, where this second group of computed distances comprises two or more of the computed distances. The feature matching unit then determines whether the query feature descriptor matches one of the reference feature descriptors associated with a smallest one of the computed distances based on the determined first group and second group of the computed distances.

    Abstract translation: 公开了用于执行用于视觉搜索的鲁棒特征匹配的技术。 包括接口和特征匹配单元的装置可以实现这些技术。 接口接收查询特征描述符。 特征匹配单元然后计算查询特征描述符和参考特征描述符之间的距离,并且根据聚类算法确定计算出的距离的第一组和所计算的距离的第二组,其中该第二组计算距离包括两个 或更多的计算距离。 特征匹配单元然后基于所确定的计算出的距离的第一组和第二组来确定查询特征描述符是否与与计算出的距离中的最小一个相关联的参考特征描述符之一匹配。

    FAST SUBSPACE PROJECTION OF DESCRIPTOR PATCHES FOR IMAGE RECOGNITION
    13.
    发明申请
    FAST SUBSPACE PROJECTION OF DESCRIPTOR PATCHES FOR IMAGE RECOGNITION 审中-公开
    用于图像识别的描述符的快速替代预测

    公开(公告)号:WO2011069023A2

    公开(公告)日:2011-06-09

    申请号:PCT/US2010/058807

    申请日:2010-12-02

    CPC classification number: G06K9/4671

    Abstract: A method for generating a feature descriptor is provided. A set of pre-generated sparse projection vectors is obtained. A scale space for an image is also obtained, where the scale space having a plurality scale levels. A descriptor for a keypoint in the scale space is then generated based on a combination of the sparse projection vectors and sparsely sampled pixel information for a plurality of pixels across the plurality of scale levels.

    Abstract translation: 提供了一种生成特征描述符的方法。 获得一组预先生成的稀疏投影向量。 也可以获得图像的标度空间,其中刻度空间具有多个刻度级别。 然后,基于稀疏投影矢量和跨越多个比例级别的多个像素的稀疏采样的像素信息的组合来生成缩放空间中的关键点的描述符。

    SIGNAL GENERATOR WITH ADJUSTABLE FREQUENCY
    14.
    发明申请
    SIGNAL GENERATOR WITH ADJUSTABLE FREQUENCY 审中-公开
    具有可调频率的信号发生器

    公开(公告)号:WO2009038587A1

    公开(公告)日:2009-03-26

    申请号:PCT/US2007/079337

    申请日:2007-09-24

    CPC classification number: H03L7/081 H03K7/06 H03L7/00 H03L7/099

    Abstract: Frequency of an oscillating signal is temporarily adjusted to adjust frequency and/or phase of an output signal. For example, the frequency of the oscillating signal may be adjusted for a very short period of time to adjust the phase of the output signal. In addition, the frequency of the oscillating signal may be temporarily adjusted in a repeated manner to adjust the effective frequency of the output signal. In some aspects the frequency of the oscillating signal is adjusted by reconfiguration of reactive circuits associated with an oscillator circuit.

    Abstract translation: 暂时调整振荡信号的频率,调整输出信号的频率和/或相位。 例如,可以在非常短的时间段内调整振荡信号的频率以调整输出信号的相位。 此外,可以以重复的方式暂时调整振荡信号的频率以调节输出信号的有效频率。 在一些方面,振荡信号的频率通过与振荡器电路相关联的无功电路的重新配置来调节。

    MULTIPLE ACCESS TECHNIQUES FOR A WIRELESS COMMUNICATION MEDIUM
    16.
    发明申请
    MULTIPLE ACCESS TECHNIQUES FOR A WIRELESS COMMUNICATION MEDIUM 审中-公开
    无线通信媒体的多种访问技术

    公开(公告)号:WO2008061251A2

    公开(公告)日:2008-05-22

    申请号:PCT/US2007/085029

    申请日:2007-11-16

    CPC classification number: H04B1/71632 H04B1/719 H04B2201/71636

    Abstract: A multiple access technique for a wireless communication system establishes separate channels by defining different time intervals for different channels. In a transmitted reference system different delay periods may be defined between transmitted reference pulses and associated data pulses for different channels. In addition, a multiple access technique may employ a common reference pulse for multiple channels in a transmitted reference system. Another multiple access technique assigns different pulse repetition periods to different channels. One or more of these techniques may be employed in an ultra-wide band system.

    Abstract translation: 用于无线通信系统的多址技术通过为不同的信道定义不同的时间间隔来建立分离的信道。 在发送的参考系统中,可以在发送的参考脉冲和用于不同信道的相关数据脉冲之间定义不同的延迟时间段 另外,多址技术可以在发射的参考系统中为多个信道采用共同的参考脉冲。 另一种多址技术为不同的信道分配不同的脉冲重复周期。 一种或多种这些技术可以用于超宽带系统。

    DELAY LINE CALIBRATION
    17.
    发明申请

    公开(公告)号:WO2008061052A3

    公开(公告)日:2008-05-22

    申请号:PCT/US2007/084400

    申请日:2007-11-12

    Abstract: A tunable delay line is calibrated to maintain the delay of the delay line at a desired value or within a desired range of values. In some aspects a signal is passed through a delay line multiple times so that the cumulative delay of the signal through the delay line (e.g., as indicated by a count) may be calculated over a period of time. The count is compared with an expected count and, based on this comparison, the delay of the delay line is adjusted as necessary. In some aspects the signal may comprise a digital signal. In some aspects a delay through a delay line may be calculated based on analysis of amplitude changes in a signal caused by a phase shift imparted on the signal by the delay line. In some aspects a delay line is incorporated into a transmitted reference system to generate and/or process transmitted reference signals.

    WAVEFORM ENCODING FOR WIRELESS APPLICATIONS
    18.
    发明申请
    WAVEFORM ENCODING FOR WIRELESS APPLICATIONS 审中-公开
    WAVEFORM编码无线应用

    公开(公告)号:WO2007121477A1

    公开(公告)日:2007-10-25

    申请号:PCT/US2007/066888

    申请日:2007-04-18

    CPC classification number: H03F3/217 H04L67/10 H04M1/7253 H04M2250/12 H04W88/02

    Abstract: Processing may be performed by a first device on behalf of a second device to offload processing from the second device. In some aspects a device from which processing has been offloaded may be advantageously adapted to consume less power, have a smaller size, and have less complexity. Offloaded processing may be employed to enable a first device to process data for transmission and then send the data to another device for processing. Offloaded processing may be employed to enable a first device to process data on behalf of a second device and then send the processed data to the second device. In some aspects the data may be waveform encoded for wireless transmission between the devices. Offloaded processing may be implemented in a static manner or in a dynamic manner.

    Abstract translation: 处理可以由代表第二设备的第一设备执行以从第二设备卸载处理。 在一些方面,已经卸载处理的装置可以有利地适于消耗更少的功率,具有更小的尺寸并且具有较小的复杂性。 可以采用卸载处理以使第一设备能够处理用于传输的数据,然后将数据发送到另一设备进行处理。 可以采用卸载处理以使得第一设备能够代表第二设备处理数据,然后将处理的数据发送到第二设备。 在一些方面,数据可以被波形编码用于设备之间的无线传输。 卸载处理可以以静态方式或以动态方式实现。

    METHODS AND APPARATUS TO RENDER COLORS TO A BINARY HIGH-DIMENSIONAL OUTPUT DEVICE
    20.
    发明申请
    METHODS AND APPARATUS TO RENDER COLORS TO A BINARY HIGH-DIMENSIONAL OUTPUT DEVICE 审中-公开
    将颜色的方法和装置应用于二进制高精度输出装置

    公开(公告)号:WO2014126766A1

    公开(公告)日:2014-08-21

    申请号:PCT/US2014/014931

    申请日:2014-02-05

    Abstract: Disclosed are methods and apparatus for color rendering in a binary high-dimensional output device, e.g. an Adjustable Interferometric Modulation Display (AIMOD). The methods and apparatus are configured to receive color data of a source color space e.g. sRGB, and then map the received data to an intermediate color space e.g. CIELAB. From this intermediated space, color rendering is performed using a pre-generated number of extended primary colors (900) for temporal modulation. Each of the pre-generated extended primary colors is made up of a combination of at least two subframes (WWW, KKK, PPP, WKP) with each subframe having a respective primary color, i.e. White (W), Black (K) and another Primary Colour (P). Through use of temporally modulated, pre-generated extended primaries in the color space, the methods and apparatus afford a reduction in the diffusion error (904) for subsequent neighboring pixels yet to be rendered, particularly when using constrained devices such as binary high-dimensional output devices.

    Abstract translation: 公开了用于二进制高维输出设备中的显色的方法和装置,例如, 可调式干涉调制显示(AIMOD)。 方法和装置被配置为接收源颜色空间的颜色数据,例如 sRGB,然后将接收的数据映射到中间颜色空间,例如。 CIELAB。 从该中间空间,使用用于时间调制的预先生成的扩展原色数(900)来执行显色。 每个预生成的扩展原色由至少两个子帧(WWW,KKK,PPP,WKP)的组合组成,每个子帧具有相应的原色,即白色(W),黑色(K)和另一个 原色(P)。 通过在颜色空间中使用时间调制的预先生成的扩展原色,方法和装置降低了后续相邻像素尚未被渲染的扩散误差(904),特别是当使用诸如二维高维度 输出设备。

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