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    Person counting method and person counting system
    3.
    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
    4.
    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.

    Three dimensional image fusion method and device and non-transitory computer-readable medium
    7.
    发明授权
    Three dimensional image fusion method and device and non-transitory computer-readable medium 有权

    公开(公告)号：US10438334B2

    公开(公告)日：2019-10-08

    申请号：US15848692

    申请日：2017-12-20

    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： G06T5/00 ,  G06T5/50 ,  G06T7/30 ,  G06T7/33 ,  G06T3/00 ,  G06T15/20

    摘要： Three dimensional image fusion method and device are disclosed. The method includes steps of obtaining a spherical image and a two dimensional image; projecting the two dimensional image onto a planar surface predetermined in a spherical coordinate system where the spherical image is located, so as to acquire a projected image having a predetermined number of feature points on the spherical surface corresponding to the spherical image; determining multiple mapping points on the spherical surface which correspond to the predetermined number of feature points, letting the predetermined number of feature points superpose on the multiple mapping points, respectively, and carrying out spatial coordinate conversion, so as to attain a converted image; and mapping multiple points except the predetermined number of feature points in the converted image onto the spherical image based on a predetermined mapping relationship, so as to fuse the two dimensional image onto the spherical image.

    THREE DIMENSIONAL IMAGE FUSION METHOD AND DEVICE AND NON-TRANSITORY COMPUTER-READABLE MEDIUM
    8.
    发明申请
    THREE DIMENSIONAL IMAGE FUSION METHOD AND DEVICE AND NON-TRANSITORY COMPUTER-READABLE MEDIUM 审中-公开

    公开(公告)号：US20180240223A1

    公开(公告)日：2018-08-23

    申请号：US15848692

    申请日：2017-12-20

    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： G06T5/50 ,  G06T7/30

    CPC分类号： G06T5/50 ,  G06T3/00 ,  G06T7/30 ,  G06T7/33 ,  G06T15/20 ,  G06T2207/20221

    摘要： Three dimensional image fusion method and device are disclosed. The method includes steps of obtaining a spherical image and a two dimensional image; projecting the two dimensional image onto a planar surface predetermined in a spherical coordinate system where the spherical image is located, so as to acquire a projected image having a predetermined number of feature points on the spherical surface corresponding to the spherical image; determining multiple mapping points on the spherical surface which correspond to the predetermined number of feature points, letting the predetermined number of feature points superpose on the multiple mapping points, respectively, and carrying out spatial coordinate conversion, so as to attain a converted image; and mapping multiple points except the predetermined number of feature points in the converted image onto the spherical image based on a predetermined mapping relationship, so as to fuse the two dimensional image onto the spherical image.

    Relative orientation angle calculation method and device as well as relative positioning method
    9.
    发明授权
    Relative orientation angle calculation method and device as well as relative positioning method 有权

    公开(公告)号：US09772396B2

    公开(公告)日：2017-09-26

    申请号：US15013031

    申请日：2016-02-02

    申请人： Ke Liao ,  Bin Da ,  Wei Wang ,  Haihua Yu ,  Hong Yi

    发明人： Ke Liao ,  Bin Da ,  Wei Wang ,  Haihua Yu ,  Hong Yi

    IPC分类号： H04Q7/10 ,  G01S5/02 ,  G01C21/16

    CPC分类号： G01S5/0289 ,  G01C21/165

    摘要： Disclosed is a relative orientation angle calculation method comprising steps of obtaining inertial sensor data of first and second mobile devices, the first mobile device being capable of sending a first signal to the second mobile device; obtaining a sending frequency that the first signal has when the first mobile device sends the first signal to the second mobile device; obtaining a receipt frequency that the first signal has when the second mobile device receives the first signal sent from the first mobile device, the first signal receiving influence of the Doppler effect in a sending process in which the first signal is sent to the second mobile device from the first mobile device; and calculating, based on the inertial sensor data, the sending frequency, and the receipt frequency, a relative orientation angle between the first and second mobile devices.

    IMAGE MATCHING METHOD AND APPARATUS AND NON-TRANSITORY COMPUTER-READABLE MEDIUM
    10.
    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.