公开(公告)号：US20230375668A1

公开(公告)日：2023-11-23

申请号：US18364222

申请日：2023-08-02

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xiaoyu Lv ,  Daxin Luo ,  Yongbing Lin ,  Sha Ma

IPC: G01S7/481 ,  G01S17/931 ,  G01S17/89

CPC classification number: G01S7/4811 ,  G01S17/931 ,  G01S17/89

Abstract: A detection apparatus includes a laser transmitter, a laser detector, a beam optical splitter, and an image detector. The laser transmitter is configured to emit a laser signal to a detection area through the beam optical splitter. The laser detector is configured to receive a first signal from a first target object in the detection area through the beam optical splitter. The beam optical splitter is further configured to provide a second signal from the first target object in the detection area for the image detector. The image detector is configured to perform imaging using the second signal.

公开(公告)号：US20210281754A1

公开(公告)日：2021-09-09

申请号：US17330133

申请日：2021-05-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Daxin Luo ,  Fenglong Song ,  Songcen Xu ,  Yi Liu ,  Youliang Yan ,  Jianzhuang Liu ,  Li Qian

IPC: H04N5/232 ,  G06T7/00 ,  G06T7/246

Abstract: In a method for selecting pictures from a sequence of pictures of an object in motion, a computerized user device determines, for each picture in the sequence of pictures, a value of a motion feature of the object. Based on analyzing the values of the motion feature of the pictures in the sequence, the device identifies a first subset of pictures from the pictures in the sequence. The device then selects, based on a second selection criterion, a second subset of pictures from the first subset of pictures. The pictures in the second subset are displayed to a user for further selection.

公开(公告)号：US11758285B2

公开(公告)日：2023-09-12

申请号：US17330133

申请日：2021-05-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Daxin Luo ,  Fenglong Song ,  Songcen Xu ,  Yi Liu ,  Youliang Yan ,  Jianzhuang Liu ,  Li Qian

IPC: G06T7/246 ,  H04N23/80 ,  G06T7/00 ,  H04N23/63

CPC classification number: H04N23/80 ,  G06T7/0002 ,  G06T7/246 ,  H04N23/63 ,  G06T2207/10016 ,  G06T2207/30168

Abstract: In a method for selecting pictures from a sequence of pictures of an object in motion, a computerized user device determines, for each picture in the sequence of pictures, a value of a motion feature of the object. Based on analyzing the values of the motion feature of the pictures in the sequence, the device identifies a first subset of pictures from the pictures in the sequence. The device then selects, based on a second selection criterion, a second subset of pictures from the first subset of pictures. The pictures in the second subset are displayed to a user for further selection.

公开(公告)号：US09882650B2

公开(公告)日：2018-01-30

申请号：US15189719

申请日：2016-06-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Daxin Luo ,  Tongtong Cao

IPC: H04B10/00 ,  H04B10/548 ,  H04B10/516 ,  H04B10/67 ,  G02F1/01 ,  G02F1/225 ,  H04B10/25 ,  H04B10/50 ,  G02F1/21

CPC classification number: H04B10/548 ,  G02F1/011 ,  G02F1/225 ,  G02F2001/212 ,  H04B10/25 ,  H04B10/503 ,  H04B10/516 ,  H04B10/677

Abstract: A system for transmitting optical differential signal includes: an optical source configured to generate two channels of optical signals having different wavelengths; an input end for a to-be-modulated electrical signal configured to input a to-be-modulated electrical signal; a unique optical modulator configured to perform optical modulation on the two channels of optical signals using the to-be-modulated electrical signal, to obtain two channels of modulated optical differential signals; an optical sending unit, configured to send the two channels of modulated optical differential signals to optical transmission media; an optical receiving unit, configured to receive the two channels of optical differential signals; an optical detector, configured to perform optical-to-electrical conversion separately on the two channels of modulated optical differential signals, to obtain two channels of electrical signals; and a comparator configured to perform a differential operation to obtain one channel of electrical signal.