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    • 31. 发明授权
    • Moving target detection in the presence of parallax
    • 在存在视差的情况下移动目标检测
    • US08340349B2
    • 2012-12-25
    • US11763559
    • 2007-06-15
    • Garbis SalgianSupun SamarasekeraJiangjian XiaoJames Russell BergenRakesh KumarFeng Han
    • Garbis SalgianSupun SamarasekeraJiangjian XiaoJames Russell BergenRakesh KumarFeng Han
    • G06K9/00
    • G06K9/3241G06K9/209G06T7/285G06T2207/10021G06T2207/30212G06T2207/30252
    • A method for detecting a moving target is disclosed that receives a plurality of images from at least one camera; receives a measurement of scale from one of a measurement device and a second camera; calculates the pose of the at least one camera over time based on the plurality of images and the measurement of scale; selects a reference image and an inspection image from the plurality of images of the at least one camera; and detects a moving target from the reference image and the inspection image based on the orientation of corresponding portions in the reference image and the inspection image relative to a location of an epipolar direction common to the reference image and the inspection image; and displays any detected moving target on a display. The measurement of scale can derived from a second camera or, for example, a wheel odometer. The method can also detect moving targets by combining the above epipolar method with a method based on changes in depth between the inspection image and the reference image and based on changes in flow between the inspection image and the reference image.
    • 公开了一种用于检测移动目标的方法,其从至少一个相机接收多个图像; 从测量装置和第二相机中的一个接收刻度的测量; 基于多个图像和尺度的测量来计算随时间的至少一个相机的姿态; 从所述至少一个照相机的多个图像中选择参考图像和检查图像; 并且基于所述参考图像和所述检查图像中的对应部分相对于所述参考图像和所述检查图像共同的核极方向的位置的取向,从所述参考图像和所述检查图像中检测移动目标; 并在显示器上显示任何检测到的移动目标。 刻度的测量可以从第二相机或例如车轮里程表得到。 该方法还可以通过将上述对极方法与基于检查图像和参考图像之间的深度变化的方法并基于检查图像与参考图像之间的流动变化组合来检测移动目标。
    • 34. 发明授权
    • Method and circuit for de-skewing data in a communication system
    • 用于在通信系统中去偏转数据的方法和电路
    • US07643517B2
    • 2010-01-05
    • US11514358
    • 2006-08-30
    • Andy P. AnnaduraiFeng HanMohammed RahmanChris Tsu
    • Andy P. AnnaduraiFeng HanMohammed RahmanChris Tsu
    • H04J3/06
    • H04L1/242H04J3/047H04J3/0602H04J2203/0089H04L7/10
    • Method and circuitry for de-skewing data in data communication networks such as a SONET. The data is sent from a system chip to a framer chip where the data is de-skewed. To detect data skew, the system chip sends a training sequence to the framer chip. The information bits sent to the framer chip are searched in order to detect the training sequence. The training sequences contain clear transition patterns at which all 16 bits of the transmit data and the TCTL signal line are inverted. If any bit does not invert, this bit must be a skewed bit. Based on the data one clock cycle before and one clock cycle after this transition, the skewed bit can be corrected back. After the data skew is detected, a multiplexing logic circuitry is used to correct the skew based on one clock cycle either before or after the transition. The multiplexing logic circuitry includes at least three registers coupled to the inputs of the multiplexing logic circuitry.
    • 用于在诸如SONET的数据通信网络中去偏斜数据的方法和电路。 数据从系统芯片发送到数据失真的成帧器芯片。 为了检测数据偏移,系统芯片向成帧器芯片发送训练序列。 搜索发送到成帧器芯片的信息比特,以便检测训练序列。 训练序列包含清除的转换模式,在该模式下,发送数据和TCTL信号线的所有16位都被反转。 如果任何位没有反转,则该位必须是倾斜位。 基于前一个时钟周期的数据和该转换之后的一个时钟周期,可以纠正偏移位。 在检测到数据偏移之后,使用复用逻辑电路来在转换之前或之后基于一个时钟周期校正偏斜。 复用逻辑电路包括耦合到多路复用逻辑电路的输入的至少三个寄存器。
    • 36. 发明授权
    • Hardware-efficient CRC generator for high speed communication networks
    • 用于高速通信网络的硬件高效CRC发生器
    • US07318188B1
    • 2008-01-08
    • US11233920
    • 2005-09-22
    • Andy P. AnnaduraiChris TsuFeng HanHon-Ming Li
    • Andy P. AnnaduraiChris TsuFeng HanHon-Ming Li
    • H03M13/00
    • H03M13/091H03M13/6502
    • A cyclic redundancy check (CRC) generator, in accordance with a specific embodiment of the present invention, generates a 32-bit CRC for each packet whose data bytes are carried over a 128-bit bus by first dividing the data bytes by a 123nd degree generator polynomial and subsequently dividing the remainder of the first division by a 32nd degree generator polynomial. Data bytes of a new packet are divided by a different dividing logic than those of a current packet. The remainder of division performed on the bytes of a new packet are supplied to the dividing logic adapted to divide the bytes of a current packet. The division by the 123nd degree generator polynomial is performed on a per byte basis, with the remainder of the division of the (i+1)th byte being used in the division of the ith byte.
    • 根据本发明的具体实施例的循环冗余校验(CRC)生成器通过首先将数据字节除以123 < SUP> rd 度生成多项式,然后将第一除法的剩余部分除以32 度生成多项式。 新分组的数据字节除了与当前分组的分割逻辑不同的分割逻辑。 对新分组的字节执行的除法的剩余部分被提供给适于划分当前分组的字节的分割逻辑。 按照每个字节执行123 nd 度生成多项式的除法,其中在第(i + 1)个第字节的除法余数中 划分第i个字节。
    • 38. 发明申请
    • Method and circuit for de-skewing data in a communication system
    • 用于在通信系统中去偏转数据的方法和电路
    • US20070019685A1
    • 2007-01-25
    • US11514358
    • 2006-08-30
    • Andy AnnaduraiFeng HanMohammed RahmanChris Tsu
    • Andy AnnaduraiFeng HanMohammed RahmanChris Tsu
    • H04J3/06
    • H04L1/242H04J3/047H04J3/0602H04J2203/0089H04L7/10
    • Method and circuitry for de-skewing data in data communication networks such as a SONET. The data is sent from a system chip to a framer chip where the data is de-skewed. To detect data skew, the system chip sends a training sequence to the framer chip. The information bits sent to the framer chip are searched in order to detect the training sequence. The training sequences contain clear transition patterns at which all 16 bits of the transmit data and the TCTL signal line are inverted. If any bit does not invert, this bit must be a skewed bit. Based on the data one clock cycle before and one clock cycle after this transition, the skewed bit can be corrected back. After the data skew is detected, a multiplexing logic circuitry is used to correct the skew based on one clock cycle either before or after the transition. The multiplexing logic circuitry includes at least three registers coupled to the inputs of the multiplexing logic circuitry.
    • 用于在诸如SONET的数据通信网络中去偏斜数据的方法和电路。 数据从系统芯片发送到数据失真的成帧器芯片。 为了检测数据偏移,系统芯片向成帧器芯片发送训练序列。 搜索发送到成帧器芯片的信息比特,以便检测训练序列。 训练序列包含清除的转换模式,在该模式下,发送数据和TCTL信号线的所有16位都被反转。 如果任何位没有反转,则该位必须是倾斜位。 基于前一个时钟周期的数据和该转换之后的一个时钟周期,可以纠正偏移位。 在检测到数据偏移之后,使用复用逻辑电路来在转换之前或之后基于一个时钟周期校正偏斜。 复用逻辑电路包括耦合到多路复用逻辑电路的输入的至少三个寄存器。
    • 39. 发明授权
    • Hardware-efficient CRC generator for high speed communication networks
    • 用于高速通信网络的硬件高效CRC发生器
    • US06968492B1
    • 2005-11-22
    • US10113469
    • 2002-03-28
    • Andy P. AnnaduraiChris TsuFeng HanHon-Ming Li
    • Andy P. AnnaduraiChris TsuFeng HanHon-Ming Li
    • H03M13/00H03M13/09
    • H03M13/091H03M13/6502
    • A cyclic redundancy check (CRC) generator, in accordance with a specific embodiment of the present invention, generates a 32-bit CRC for each packet whose data bytes are carried over a 128-bit bus by first dividing the data bytes by a 123nd degree generator polynomial and subsequently dividing the remainder of the first division by a 32nd degree generator polynomial. Data bytes of a new packet are divided by a different dividing logic than those of a current packet. The remainder of division performed on the bytes of a new packet are supplied to the dividing logic adapted to divide the bytes of a current packet. The division by the 123nd degree generator polynomial is performed on a per byte basis, with the remainder of the division of the (i+1)th byte being used in the division of the ith byte.
    • 根据本发明的具体实施例的循环冗余校验(CRC)生成器通过首先将数据字节除以123 < SUP> nd 度生成多项式,然后将第一除法的剩余部分除以32 度生成多项式。 新分组的数据字节除了与当前分组的分割逻辑不同的分割逻辑。 对新分组的字节执行的除法的剩余部分被提供给适于划分当前分组的字节的分割逻辑。 按照每个字节执行由123 nd 度生成多项式的除法,其中在第(i + 1)个第字节的除法余数中 划分第i个字节。
    • 40. 发明授权
    • System and method for multi-agent event detection and recognition
    • 多代理事件检测和识别的系统和方法
    • US09569531B2
    • 2017-02-14
    • US12489667
    • 2009-06-23
    • Hui ChengChangjiang YanHarpreet Singh SawhneyFeng Han
    • Hui ChengChangjiang YanHarpreet Singh SawhneyFeng Han
    • G06F17/30G06K9/00G06K9/46G06K9/62
    • G06F17/30781G06K9/00771G06K9/4642G06K9/6292
    • A method and system for creating a histogram of oriented occurrences (HO2) is disclosed. A plurality of entities in at least one image are detected and tracked. One of the plurality of entities is designated as a reference entity. A local 2-dimensional ground plane coordinate system centered on and oriented with respect to the reference entity is defined. The 2-dimensional ground plane is partitioned into a plurality of non-overlapping bins, the bins forming a histogram, a bin tracking a number of occurrences of an entity class. An occurrence of at least one other entity of the plurality of entities located in the at least one image may be associated with one of the plurality of non-overlapping bins. A number of occurrences of entities of at least one entity class in at least one bin may be into a vector to define an HO2 feature.
    • 公开了一种用于创建定向事件直方图(HO2)的方法和系统。 检测并跟踪至少一个图像中的多个实体。 多个实体之一被指定为参照实体。 定义以参考实体为中心并定向的局部二维地面坐标系。 二维接地平面被划分成多个不重叠的箱体,该箱体形成一个直方图,一个箱子跟踪一个实体类的出现次数。 位于所述至少一个图像中的所述多个实体中的至少一个其他实体的出现可以与所述多个非重叠区域中的一个相关联。 在至少一个箱中的至少一个实体类的实体的多个出现可以被转换为向量以定义HO2特征。