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28 条记录 (耗时 0.022 秒)

    Method, device, and computer-readable medium of object detection
    1.
    发明授权
    Method, device, and computer-readable medium of object detection 有权
    物体检测的方法，设备和计算机可读介质

    公开(公告)号：US08401232B2

    公开(公告)日：2013-03-19

    申请号：US13095128

    申请日：2011-04-27

    申请人： Shengyin Fan ,  Hong Yi ,  Yu Deng ,  Xin Wang

    发明人： Shengyin Fan ,  Hong Yi ,  Yu Deng ,  Xin Wang

    IPC分类号： G06K9/00

    CPC分类号： G06K9/00771 ,  G06T7/215 ,  G06T7/277 ,  G06T2207/10016 ,  G06T2207/20076 ,  G06T2207/30196

    摘要： Disclosed are an object detection method and an object detection device. The object detection method comprises a step of obtaining plural detection results of a current frame according to plural object detection methods; a step of setting initial probabilities of the plural detection results of the current frame; a step of calculating a movement frequency distribution diagram representing movement frequencies of respective pixels in the current frame; a step of obtaining detection results of a previous frame; a step of updating the probabilities of the plural detection results of the current frame; and a step of determining a final list of detected objects based on the updated probabilities of the plural detection results of the current frame.

    摘要翻译： 公开了一种物体检测方法和物体检测装置。 物体检测方法包括根据多个物体检测方法获得当前帧的多个检测结果的步骤; 设定当前帧的多个检测结果的初始概率的步骤; 计算表示当前帧中的各个像素的移动频率的移动频率分布图的步骤; 获取前一帧的检测结果的步骤; 更新当前帧的多个检测结果的概率的步骤; 以及基于当前帧的多个检测结果的更新概率来确定检测对象的最终列表的步骤。

    METHOD, DEVICE, AND COMPUTER-READABLE MEDIUM OF OBJECT DETECTION
    2.
    发明申请
    METHOD, DEVICE, AND COMPUTER-READABLE MEDIUM OF OBJECT DETECTION 有权
    对象检测的方法，设备和计算机可读介质

    公开(公告)号：US20110274315A1

    公开(公告)日：2011-11-10

    申请号：US13095128

    申请日：2011-04-27

    申请人： Shengyin FAN ,  Hong Yi ,  Yu Deng ,  Xin Wang

    发明人： Shengyin FAN ,  Hong Yi ,  Yu Deng ,  Xin Wang

    IPC分类号： G06K9/00

    CPC分类号： G06K9/00771 ,  G06T7/215 ,  G06T7/277 ,  G06T2207/10016 ,  G06T2207/20076 ,  G06T2207/30196

    摘要： Disclosed are an object detection method and an object detection device. The object detection method comprises a step of obtaining plural detection results of a current frame according to plural object detection methods; a step of setting initial probabilities of the plural detection results of the current frame; a step of calculating a movement frequency distribution diagram representing movement frequencies of respective pixels in the current frame; a step of obtaining detection results of a previous frame; a step of updating the probabilities of the plural detection results of the current frame; and a step of determining a final list of detected objects based on the updated probabilities of the plural detection results of the current frame.

    摘要翻译： 公开了一种物体检测方法和物体检测装置。 物体检测方法包括根据多个物体检测方法获得当前帧的多个检测结果的步骤; 设定当前帧的多个检测结果的初始概率的步骤; 计算表示当前帧中的各个像素的移动频率的移动频率分布图的步骤; 获取前一帧的检测结果的步骤; 更新当前帧的多个检测结果的概率的步骤; 以及基于当前帧的多个检测结果的更新概率来确定检测对象的最终列表的步骤。

    IMAGE MATCHING METHOD AND APPARATUS AND NON-TRANSITORY COMPUTER-READABLE MEDIUM
    4.
    发明申请
    IMAGE MATCHING METHOD AND APPARATUS AND NON-TRANSITORY COMPUTER-READABLE MEDIUM 有权

    公开(公告)号：US20220027656A1

    公开(公告)日：2022-01-27

    申请号：US17381414

    申请日：2021-07-21

    申请人： Haijing Jia ,  Hong Yi ,  Liyan Liu ,  Wei Wang

    发明人： Haijing Jia ,  Hong Yi ,  Liyan Liu ,  Wei Wang

    IPC分类号： G06K9/46 ,  G06T7/11 ,  G06T7/55

    摘要： Disclosed are an image matching method and apparatus. The image matching method is inclusive of steps of obtaining a panoramic image of at least one subspace in a 3D space and a 2D image of the 3D space; acquiring a 2D image of the at least one subspace in the 3D space; performing 3D reconstruction on the panoramic image of the at least one subspace, and procuring a projection image corresponding to the panoramic image of the at least one subspace; and attaining a matching relationship between the panoramic image of the at least one subspace and the 2D image of the at least one subspace, and establishing an association relationship between the panoramic image of the at least one subspace and the 2D image of the at least one subspace between which the matching relationship has been generated.

    Person counting method and person counting system
    5.
    发明授权
    Person counting method and person counting system 有权

    公开(公告)号：US11055878B2

    公开(公告)日：2021-07-06

    申请号：US16655496

    申请日：2019-10-17

    申请人： Hong Yi ,  Haijing Jia ,  Weitao Gong ,  Wei Wang

    发明人： Hong Yi ,  Haijing Jia ,  Weitao Gong ,  Wei Wang

    IPC分类号： G06K9/00 ,  G06T7/00 ,  G06K9/62

    摘要： A person counting method and a person counting system are provided. The method includes extracting a group of person images to obtain a first image set; dividing the first image set into first and second subsets based on whether a related image exists in a second image set, and reusing a person ID of the related image; estimating posture patterns of images in the first subset, and storing the images in the first subset into an image library based on person IDs and the posture patterns; and selecting a target image whose similarity to an image in the second subset is highest from the image library, reusing a person ID of the target image when the similarity is greater than a threshold, and assigning a new person ID and incrementing a person counter by 1 when the similarity is not greater than the threshold.

    Dual fisheye, hemispherical image projection and stitching method, device and computer-readable medium
    7.
    发明授权
    Dual fisheye, hemispherical image projection and stitching method, device and computer-readable medium 有权

    公开(公告)号：US10482571B2

    公开(公告)日：2019-11-19

    申请号：US15697606

    申请日：2017-09-07

    申请人： Hong Yi ,  Weitao Gong ,  Haihua Yu ,  Wei Wang

    发明人： Hong Yi ,  Weitao Gong ,  Haihua Yu ,  Wei Wang

    IPC分类号： G06T3/00 ,  H04N5/232

    摘要： An image processing method include projecting first and second images which are captured by two fisheye lenses onto first and second hemispherical projection models, respectively; determining a set of waiting-for-stitching surface region pairs on the first and second hemispherical projection models; extracting feature points from the two fisheye images and determining feature points matching each other to serving as pixels matching each other; determining a set of surface region pairs including the pixels matching each other on the first and second hemispherical projection models as the set of waiting-for-stitching surface region pairs; generating a customized projection model on the grounds of the set of waiting-for-stitching surface region pairs by letting a spherical distance between vertexes of each pair in the set of waiting-for-stitching surface region pairs be zero; and generating a third image by projecting the first and second images onto the customized projection model.

    Method and apparatus for controlling phase delay offset point of modulator
    8.
    发明授权
    Method and apparatus for controlling phase delay offset point of modulator 有权
    用于控制调制器相位延迟偏移点的方法和装置

    公开(公告)号：US08983305B2

    公开(公告)日：2015-03-17

    申请号：US13637181

    申请日：2010-08-17

    申请人： Hong Yi ,  Jianhong Chen

    发明人： Hong Yi ,  Jianhong Chen

    IPC分类号： H04B10/04 ,  H04B10/12 ,  H04L27/20 ,  H04L27/00

    CPC分类号： H04L27/2071 ,  H04B10/5053 ,  H04B10/5057 ,  H04B10/5561 ,  H04L2027/0018 ,  H04L2027/0051

    摘要： The present invention provides a method and an apparatus for controlling a phase delay offset point of a modulator. The method comprises: acquiring backlight detection current signals output from a modulator in different working states, and determining harmonic amplitude values of the backlight detection current signals corresponding to the different working states; determining a detection value of a phase delay offset point corresponding to the modulator according to the determined harmonic amplitude values; comparing the detection value with a set target value of the phase delay offset point, and controlling a position of the phase delay offset point corresponding to the modulator according to the comparison result. The accuracy of controlling the position of the phase delay offset point of the modulator and the performance of the Differential Quadrature Phase Shift Keying (DQPSK) modulation system are improved through the technical solution.

    摘要翻译： 本发明提供一种用于控制调制器的相位延迟偏移点的方法和装置。 该方法包括：获取在不同工作状态下从调制器输出的背光检测电流信号，以及确定对应于不同工作状态的背光检测电流信号的谐波幅度值; 根据确定的谐波振幅值确定与调制器相对应的相位延迟偏移点的检测值; 将检测值与相位延迟偏移点的设定目标值进行比较，并根据比较结果控制与调制器对应的相位延迟偏移点的位置。 通过技术方案，改进了调制器相位延迟偏移点位置的精度和差分正交相移键控（DQPSK）调制系统的性能。

    METHOD AND APPARATUS FOR CONTROLLING BIAS POINT OF DIFFERENTIAL QUADRATURE PHASE SHIFT KEYING DEMODULATOR
    9.
    发明申请
    METHOD AND APPARATUS FOR CONTROLLING BIAS POINT OF DIFFERENTIAL QUADRATURE PHASE SHIFT KEYING DEMODULATOR 有权
    控制差分平移相位移相关调制解调器的方法和装置

    公开(公告)号：US20130044366A1

    公开(公告)日：2013-02-21

    申请号：US13634469

    申请日：2010-08-20

    申请人： Jianhua Chen ,  Hong Yi

    发明人： Jianhua Chen ,  Hong Yi

    IPC分类号： G02F2/00

    CPC分类号： H04B10/69 ,  H04B10/50575 ,  H04B10/50577 ,  H04B10/677

    摘要： Method and apparatus for controlling bias point of DQPSK demodulator are disclosed. The method comprises: step 1: respectively applying first and second bias voltages to I-path and Q-path, and applying identical pilot voltage signals to I-path and Q-path (S202); step 2:executing filtering processing on I-path and Q-path differential current signals collected by balance receiver and determining θIand θQ (S204); step 3: performing feedback control to first and second bias voltages respectively according to θI and θQ so that θI and θQ respectively reaches expected bias point values of I-path and Q-path (S206); executing step 2 and 3 cyclically at preset regular intervals (S208), so that θI and θQ remains consistently the expected bias point values of I-path and Q-path. The solution enables bias point of DQPSK demodulator to be locked at any expected bias point value, facilitates realization of digitization, and is not easily influenced.

    摘要翻译： 公开了用于控制DQPSK解调器偏置点的方法和装置。 该方法包括：步骤1：分别对I路径和Q路径施加第一和第二偏置电压，并向I路径和Q路径施加相同的导频电压信号（S202）; 步骤2：对平衡接收机收集的I路径和Q路径差分电流信号执行滤波处理和确定; Iand＆thetas; Q（S204）; 步骤3：分别根据I和I等级Q对第一和第二偏置电压进行反馈控制，使得I和I等于Q分别达到I路径和Q路径的预期偏置点值（S206）; 以预定的时间间隔循环执行步骤2和3（S208），使得I和＆amp; t; Q保持一致地是I-path和Q-path的预期偏置点值。 该解决方案使DQPSK解调器的偏置点能够被锁定在任何预期的偏置点值，便于数字化的实现，并且不容易受到影响。