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公开(公告)号：US09977986B2
公开(公告)日：2018-05-22
申请号：US15323911
申请日：2015-11-19
发明人： Baohua Deng , Wentao Liu
CPC分类号： G06K9/4661 , G06K9/00791 , G06K9/2054 , G06K9/3233 , G06K9/4642 , G06T7/11 , H04N5/2351 , H04N5/2353 , H04N5/3454 , H04N5/3535 , H04N5/35554
摘要： A method of vehicle monitoring includes: obtaining a frame of an image before exposure; outputting a luminance value of each partition of the image, accumulation number of pixels lower than a first set threshold, accumulation number of pixels higher than a second set threshold, to generate an evaluation data; generating eigenvalues of a plurality of illuminance evaluation areas based on the evaluation data and the preset illuminance evaluation area distribution table; estimating the illuminance of an environment of a vehicle according to the eigenvalues of the plurality of illuminance evaluation areas and differentiation characteristics between normal illuminance and low illuminance; switching the region of interest of a current exposing image based on the estimating results, generating a weight table based on the content of the current exposing image and the switched region of interest, controlling the exposing of the region of interest based on the weight table.
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2.发明授权公开(公告)号：US12126711B2
公开(公告)日：2024-10-22
申请号：US17544528
申请日：2021-12-07
发明人： Jun Xia , Bin Wang , Guoqiang Zheng
IPC分类号： H04L9/06 , H04N21/2347
CPC分类号： H04L9/065 , H04L9/0643 , H04N21/2347
摘要： The present application provides a method and a device for encryption of a video stream, a communication equipment, and a storage media. The method for encryption of a video stream includes: acquiring a video stream, encrypting a data part of an I frame by using a first encryption algorithm to obtain a first encrypted data, and encrypting an encryption key of the first encrypted data by using a second encryption algorithm to obtain a second encrypted data, and storing the second encrypted data in a frame header of the I frame to obtain an encrypted I frame.
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3.发明申请公开(公告)号：US20220345292A1
公开(公告)日：2022-10-27
申请号：US17544528
申请日：2021-12-07
发明人： Jun XIA , Bin WANG , Guoqiang ZHENG
IPC分类号： H04L9/06 , H04N21/2347
摘要： The present application provides a method and a device for encryption of a video stream, a communication equipment, and a storage media. The method for encryption of a video stream includes: acquiring a video stream, encrypting a data part of an I frame by using a first encryption algorithm to obtain a first encrypted data, and encrypting an encryption key of the first encrypted data by using a second encryption algorithm to obtain a second encrypted data, and storing the second encrypted data in a frame header of the I frame to obtain an encrypted I frame.
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公开(公告)号：US11967228B2
公开(公告)日：2024-04-23
申请号：US16754094
申请日：2020-02-12
CPC分类号： G08G1/0175 , G06T3/40 , G06T7/20 , G06T7/70 , G06V20/58 , G06V20/625 , G06T2207/30236 , G06T2207/30252 , G06V2201/08
摘要： A peccancy monitoring system and a peccancy monitoring method are provided in the present application. The peccancy monitoring system includes: a first camera, configured to monitor whether a peccancy vehicle is present in a designated area and generate alarm message when the peccancy vehicle is present; a control unit, connected to the first camera and configured to trigger the second camera to shoot according to the alarm message; a second camera, connected to the control unit and configured to shoot the peccancy vehicle to acquire a video of the vehicle and an image of the vehicle, here the video of the vehicle is a video containing a license plate of the peccancy vehicle and the image of the vehicle is an image containing the license plate of the peccancy vehicle. By using the technical solutions in the present application, the road can be monitored after the school bus is docked.
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公开(公告)号：US20220358769A1
公开(公告)日：2022-11-10
申请号：US17619881
申请日：2019-08-05
发明人： Rui WANG , Yipeng GAO
摘要： A vehicle monitoring system and a vehicle monitoring method, the vehicle monitoring system comprising: a camera module, used for photographing one or more first images and one or more second images after a vehicle starts, the first images being obtained by photographing embarking passengers, the second images being obtained by photographing disembarking passengers; a processing module, connected to the camera module, and used for performing facial analysis on the first images to determine the passengers embarking the vehicle, performing facial analysis on the second images to determine the passengers disembarking the vehicle, and sequentially matching the embarking passengers with the disembarking passengers; a reminder module, connected to the processing module, and used for pushing a left-behind passenger message to a driver if there is an embarking passenger who cannot be matched with a disembarking passenger, to warn the driver that there is a passenger currently left behind in the vehicle.
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公开(公告)号：US20220375341A1
公开(公告)日：2022-11-24
申请号：US16754094
申请日：2020-02-12
摘要： A peccancy monitoring system and a peccancy monitoring method are provided in the present application. The peccancy monitoring system includes: a first camera, configured to monitor whether a peccancy vehicle is present in a designated area and generate alarm message when the peccancy vehicle is present; a control unit, connected to the first camera and configured to trigger the second camera to shoot according to the alarm message; a second camera, connected to the control unit and configured to shoot the peccancy vehicle to acquire a video of the vehicle and an image of the vehicle, here the video of the vehicle is a video containing a license plate of the peccancy vehicle and the image of the vehicle is an image containing the license plate of the peccancy vehicle. By using the technical solutions in the present application, the road can be monitored after the school bus is docked.
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7.发明申请公开(公告)号：US20220207889A1
公开(公告)日：2022-06-30
申请号：US17555835
申请日：2021-12-20
IPC分类号： G06V20/62 , G06T7/70 , G06V30/148 , G06V30/19 , G06V30/18
摘要： A method for recognizing vehicle license plate is provided, the method includes: performing vehicle license plate detection on a Nth image frame in a video stream to obtain a first vehicle license plate detection result which is used to indicate a position of the first vehicle license plate in the Nth image frame if the first vehicle license plate is included in the Nth image frame; segmenting a character region and a number region from the first vehicle license plate according to the position of the first vehicle license plate in the Nth image frame and content information of the first vehicle license plate if the first vehicle license plate is included in the Nth image frame; and recognizing the character region and the number region segmented from the first vehicle license plate to obtain a first recognition result of the first vehicle license plate.
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公开(公告)号：US10332392B2
公开(公告)日：2019-06-25
申请号：US15325691
申请日：2015-07-16
发明人： Xuheng Niu
摘要： The present invention provides a method and system for segmentally limiting the speed of a vehicle. The method comprises: receiving characteristic parameters of a route sent by a vehicle monitoring platform, and respectively expanding a plurality of road segments of the route into a plurality of rectangles; dividing the plurality of rectangles into blocks sequentially; calculating a minimum enclosing rectangle of the at least two rectangles, and counting vertex information of the minimum enclosing rectangle of each block so as to establish a hash table; obtaining an instant longitude and latitude of a moving vehicle, searching in the hash table so as to determine a block where the vehicle is located, and judging a road segment where the vehicle is currently located; and comparing a current speed of the vehicle with a limiting speed of the road segment where the vehicle is currently located, judging whether the vehicle exceeds the limiting speed.
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公开(公告)号：US20180019659A1
公开(公告)日：2018-01-18
申请号：US15323866
申请日：2016-02-18
发明人： Geng YUAN , Mancheng XIAO , Mingyang LIU
摘要： A DC-DC power supply control circuit includes: a voltage stabilizing diode, a first resistor, a second resistor, a third resistor, a first triode and a second triode. Two ends of the first resistor are connected with an input end and an enable end of the DC-DC power supply respectively. Two ends of the second resistor are connected with the enable end and a collector of the second triode. A base electrode and an emitting electrode of the second triode are connected with a collector of the first triode and ground respectively. A negative electrode end and a positive electrode end of the voltage stabilizing diode are connected with an output end of the DC-DC power supply and a base electrode of the first triode respectively. Two ends of the third resistor are connected with the base electrode and the ground respectively. An emitting electrode of the first triode is grounded.
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公开(公告)号：US12046076B2
公开(公告)日：2024-07-23
申请号：US17619881
申请日：2019-08-05
发明人： Rui Wang , Yipeng Gao
CPC分类号： G06V40/172 , B60W50/14 , G06V20/56 , G06V20/593 , B60Q1/5035
摘要： A vehicle monitoring system and a vehicle monitoring method, the vehicle monitoring system comprising: a camera module, used for photographing one or more first images and one or more second images after a vehicle starts, the first images being obtained by photographing embarking passengers, the second images being obtained by photographing disembarking passengers; a processing module, connected to the camera module, and used for performing facial analysis on the first images to determine the passengers embarking the vehicle, performing facial analysis on the second images to determine the passengers disembarking the vehicle, and sequentially matching the embarking passengers with the disembarking passengers; a reminder module, connected to the processing module, and used for pushing a left-behind passenger message to a driver if there is an embarking passenger who cannot be matched with a disembarking passenger, to warn the driver that there is a passenger currently left behind in the vehicle.
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