Patents Assigned to ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
  • IMAGING SYSTEMS AND METHODS
    Publication number: 20220247926
    Abstract: The present disclosure relates to imaging systems and methods. An imaging method may include determining a first remaining power based on a maximum power of a camera and a working power of the camera; determining whether an operation condition of a first load is satisfied based on the first remaining power; and in response to a determination that the operation condition of the first load is satisfied, enabling the first load.
    Type: Application
    Filed: April 21, 2022
    Publication date: August 4, 2022
    Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Jianmiao WANG, Xiaochen ZHAN, Chaojie ZHAO
  • SYSTEMS AND METHODS FOR MOVEMENT CONTROL
    Publication number: 20220245827
    Abstract: The present disclosure may provide a method for movement control. The method may include obtaining at least one tracking parameter associated with a moving object and a control algorithm including a first control algorithm and a second control algorithm associated with a capture device used to track the moving object. The method may also include determining a switching time point with respect to the first control algorithm and the second control algorithm. Further, the method may include accelerating, according to the first control algorithm, a speed of the capture device within a first acceleration time period from a start time point to the switching time point and accelerating, according to the second control algorithm from the switching time point to an acceleration termination time point.
    Type: Application
    Filed: April 19, 2022
    Publication date: August 4, 2022
    Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Mingzhu CHEN, Zengqi YANG, Zhiyong XU, Huimin WU
  • METHODS AND SYSTEMS FOR FACE ALIGNMENT
    Publication number: 20220237944
    Abstract: MMTTTTA method and system for face alignment. The method may include obtaining an image processing model set including M (M?2) candidate models, and obtaining a test image including a target face. The method may also include conducting T (T?1) stages of model set updating operation. Each stage of the T stages of model set updating operation may include conducting a performance evaluation to each candidate model of the image processing model set with respect to the test image, and updating the image processing model set by excluding at least one model from the image processing model set based on the performance evaluation. The method may further include designating, after completing the T stages of model set updating operation, at least one candidate model of the image processing model set as a target model, and determining, based on the target model, a result shape as a shape of the target face.
    Type: Application
    Filed: April 10, 2022
    Publication date: July 28, 2022
    Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Bin WANG, Gang WANG
  • Methods and devices for processing images
    Patent number: 11399167
    Abstract: A system and a method for processing images are provided. The method may include one or more of the following operations. An image including a plurality of channels and a plurality of pixels may be obtained, each pixel having a pixel value corresponding to one of the plurality of channels. One of the plurality of pixels may be selected as a pixel of interest, and the corresponding channel of the pixel value of the pixel of interest may be designated as a target channel. A plurality of pixels proximate to the pixel of interest may include at least two first reference pixels. For each first reference pixel, a pseudo pixel value for the target channel of the first reference pixel may be determined. Whether the image is a deteriorated image may be determined at least based on the pixel value of the pixel of interest and the determined pseudo pixel values.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: July 26, 2022
    Assignee: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Chen Ling, Dan Zhang, Xin Ma, Wei Fang
  • SYSTEMS AND METHODS FOR POWER OUTAGE PROTECTION OF STORAGE DEVICE
    Publication number: 20220229482
    Abstract: The present disclosure relates to systems and methods for power outage protection. The system may obtain a read/write signal of each of a plurality of storage devices. For each of the plurality of storage devices, the system may identify a state of the storage device based on the read/write signal of the storage device. The state of the storage device may include a read/write state or an idle state of the storage device. In response to an interruption of power supply to the plurality of storage devices, the system may selectively provide electric power to the plurality of storage devices using a power source based at least partially on the states of the plurality of storage devices.
    Type: Application
    Filed: April 5, 2022
    Publication date: July 21, 2022
    Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Jing BA, Guobao FENG
  • POSITIONING SYSTEMS AND METHODS
    Publication number: 20220221274
    Abstract: The present disclosure may provide a system for positioning a target scene and/or navigating a detection equipment to the target scene. The system may obtain at least one image captured by at least one camera. The at least one image may include the target scene. The system may also determine a position of the target scene based on the at least one image. Further, the system may plan a travelling route for a detection equipment to the target scene based on the position of the target scene.
    Type: Application
    Filed: March 28, 2022
    Publication date: July 14, 2022
    Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Yongjun FANG, Guoquan ZHANG
  • SYSTEMS AND METHODS FOR ANALYZING DIFFUSION TREND OF DIFFUSIBLE SUBSTANCE
    Publication number: 20220214258
    Abstract: Systems and methods for analyzing a diffusion trend of a diffusible substance. The systems may obtain a plurality of sets of reference information relating to the diffusible substance from a plurality of devices respectively, each of the plurality of sets of reference information at least including a time point when a corresponding device detects the diffusible substance and a location where the device detects the diffusible substance. The plurality of sets of reference information may correspond to a same or a substantially same time domain. The systems may determine the diffusion trend of the diffusible substance based on the plurality of sets reference information.
    Type: Application
    Filed: March 22, 2022
    Publication date: July 7, 2022
    Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Yongjun FANG, Guoquan ZHANG, Zhiji DENG
  • APPARATUSES AND METHODS FOR PACKAGING
    Publication number: 20220204240
    Abstract: The present disclosure provides a packaging apparatus. The packaging apparatus may include a main body. The main body may include a base plate, a first side plate, and a second side plate. The first side plate and the second side plate may be distributed around the base plate. The packaging apparatus may include an elastic sheet disposed above the base plate. The elastic sheet may include a first fixing part and a second fixing part. The first fixing part and the second fixing part may be connected with the first side plate and the second side plate, respectively. A space may be configured between the base plate and the elastic sheet. When the packaging apparatus is used to package a subject, the first side plate and the second side plate may be folded away from a side of the base plate where the subject is located.
    Type: Application
    Filed: March 14, 2022
    Publication date: June 30, 2022
    Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Qiujia FU, Yikun LIANG, Qianli ZHANG
  • APPARATUSES AND METHODS FOR PACKAGING
    Publication number: 20220204242
    Abstract: The present disclosure provides a packaging apparatus. The packaging structure may include a main body including one or more base plates and one or more elastic sheets. Each of the base plates may have two opposite first side edges, two opposite second side edges, and an opening. Each of the one or more elastic sheets may correspond to one of the one or more base plates. The one or more elastic sheets may be physically connected with the main body, and each of the one or more elastic sheets may cover at least a part of the opening. The main body may further include a first side plate disposed beside at least one of the two opposite first side edges and a second side plate disposed beside each of the two opposite second side edges.
    Type: Application
    Filed: March 16, 2022
    Publication date: June 30, 2022
    Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Qiujia FU, Ye YAO, Xiantao ZENG, Qianli ZHANG, Yikun LIANG
  • NETWORK CONNECTION SYSTEMS AND METHODS AND NETWORK ACCESS DEVICES
    Publication number: 20220210117
    Abstract: The present disclosure relates to network connection methods and devices for connecting a terminal device to a network through a network access device. The network access device may include a processor and a connection configuration component. The processor receives a connection request from the terminal device. The processor also authenticates the terminal device based on the connection request, and obtains a verified Internet protocol (IP) address from the connection configuration component. The processor further transmits the verified IP address to the terminal device after the terminal device is authenticated, wherein the terminal device is configured to be connected to the network by using the verified IP address.
    Type: Application
    Filed: March 14, 2022
    Publication date: June 30, 2022
    Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Shenqiu TAN, Hui LI
  • Methods and systems for video surveillance
    Patent number: 11367287
    Abstract: A system for video surveillance includes an image sensor configured capture an image including a reference zone and a memory device that stores instructions. The system also includes one or more processors that are configured to execute the instructions to determine 3D coordinates of a target comprised in the image and determine 3D coordinates of the reference zone. The one or more processors are further configured to identify an event according to the 3D coordinates of the target and the 3D coordinates of the reference zone.
    Type: Grant
    Filed: June 1, 2020
    Date of Patent: June 21, 2022
    Assignee: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Huadong Pan, Miao Cheng, Shizhu Pan, Xingming Zhang
  • SYSTEMS AND METHODS FOR TRAFFIC MONITORING
    Publication number: 20220189297
    Abstract: The present disclosure may provide a system. The system may obtain at least one pair of images from at least one pair of capture devices. Each of the at least one pair of capture devices may include a first capture device and a second capture device, and each of the at least one pair of images may include a first image captured by the first capture device and a second image captured by the second capture device. The system may determine first identification information of at least one first object in the first image and determine second identification information of at least one second object in the second image. Further, the system may determine at least one information pair by correlating at least a part of the first identification information and at least a part of the second identification information.
    Type: Application
    Filed: March 6, 2022
    Publication date: June 16, 2022
    Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Jun Lin, Yayun Wang, Wenbo Chen
  • PACKAGE ASSEMBLY FOR PACKAGING OBJECTS
    Publication number: 20220185563
    Abstract: The present disclosure may provide a package assembly for packaging an object. The package assembly may include a bottom panel, at least one group of side panels, a left panel, a right panel, and at least one fastener. The at least one fastener may correspond to the at least one group of side panels respectively. For each of the at least one fastener, the fastener may be fixedly connected to a portion of a corresponding group of side panels. The portion of the group of side panels can be folded inwardly to make the fastener contact with an object placed on the bottom panel. The left side panel and the right side panel can be folded outwardly to fasten the fastener such that the object is fixed on the bottom panel.
    Type: Application
    Filed: March 6, 2022
    Publication date: June 16, 2022
    Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Qiujia FU, Yikun LIANG
  • Methods and systems for video stabilization
    Patent number: 11363202
    Abstract: A method for video stabilization may include obtaining a target frame of a video; dividing a plurality of pixels of the target frame into a plurality of pixel groups; determining a plurality of first feature points in the target frame; determining first location information of the plurality of first feature points in the target frame; determining second location information of the plurality of first feature points in a frame prior to the target frame in the video; obtaining a global homography matrix; determining an offset of each of the plurality of first feature points; determining a fitting result based on the first location information and the offsets; for each of the plurality of pixel groups, determining a correction matrix; and for each of the plurality of pixel groups, processing the pixels in the pixel group based on the global homography matrix and the correction matrix.
    Type: Grant
    Filed: December 21, 2021
    Date of Patent: June 14, 2022
    Assignee: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventor: Tingniao Wang
  • Methods, systems, and media for image white balance adjustment
    Patent number: 11363244
    Abstract: The present disclosure relates to systems and methods for image white balance adjustment. The systems may perform the methods to obtain a target image; determine a first lighting condition of the target image when the target image is captured; determine, based on the first lighting condition of the target image, a white balance gain of the target image; and adjust, based on the white balance gain, white balance of the target image.
    Type: Grant
    Filed: October 11, 2020
    Date of Patent: June 14, 2022
    Assignee: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventor: Tingniao Wang
  • Methods and systems for fusion display of thermal infrared and visible image
    Patent number: 11354827
    Abstract: A method relating to an image fusion includes acquiring a thermal infrared image and a visible image. The method also includes receiving a fusion parameter corresponding to a color space and generating, based on the fusion parameter, a fused image of the thermal infrared image and the visible image. The method further includes receiving a regulation parameter, the regulation parameter including a color scheme or a partial contrast, and adjusting the fused image according to the regulation parameter.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: June 7, 2022
    Assignee: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Wei Lu, Qiankun Li
  • System and method for establishing connection between devices
    Patent number: 11356515
    Abstract: The present disclosure relates to systems and methods for establishing connection between devices. One or more first parameters relating to a first device may be determined. The first device may have a first operation mode and a second operation mode. The one or more first parameters may include a duration of the first operation mode and a duration of the second operation mode. One or more second parameters relating to a second device may be determined. The second device may have a third operation mode. The one or more second parameters relating to the second device may include a duration of the third operation mode. A connection between the first device and the second device may be established based on the one or more first parameters and the one or more second parameters.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: June 7, 2022
    Assignee: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventor: Zhiji Deng
  • Systems and methods for noise reduction
    Patent number: 11341618
    Abstract: The present disclosure is related to systems and methods for noise reduction. The method includes determining a first image block in each of a group of continuous frames including a current frame and a plurality of reference frames based on coordinates of a target pixel in the current frame. The method includes determining at least one second image block corresponding to the first image block in each of the group of continuous frames. The method includes determining an average offset between the at least one second image block in the current frame and the second image blocks in the plurality of reference frames. The method includes determining a spatial domain filtering intensity and a temporal domain filtering intensity for the target pixel in the current frame.
    Type: Grant
    Filed: July 13, 2021
    Date of Patent: May 24, 2022
    Assignee: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventor: Keqiang Yu
  • CAMERA DEVICE
    Publication number: 20220155658
    Abstract: The present disclosure provides a camera device. The camera device may include a camera body, a supporting component, and a limiting component. The supporting component may be configured to fix the camera body at a first position relative to the supporting component where the lens works under a normal condition. The limiting component may be mechanically coupled between the camera body and the supporting component. The limiting component may be configured to secure the camera body at a second position relative to the supporting component. The second position relative to the supporting component may be different from the first position relative to the supporting component.
    Type: Application
    Filed: January 28, 2022
    Publication date: May 19, 2022
    Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventor: Yuepeng JIANG
  • Methods and systems for lane line identification
    Patent number: 11335102
    Abstract: The present disclosure provides a method for identifying a plurality of lane lines on a road segment. The method may include obtaining a plurality of images of the road segment having one or more lanes and vehicles, and identifying a plurality of reference straight lines from the images. The method may include determining a vanishing point based on the reference straight lines, and determining a plurality of candidate lane lines among the reference straight lines based on the vanishing point. The method may also include determining at least one travel trajectory of at least one of the vehicles based on the images. The method may further include determining a target travel trajectory among the travel trajectory based on the vanishing point or a count of the lanes, and determining the lane lines among the candidate lane lines based on the target travel trajectory.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: May 17, 2022
    Assignee: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.
    Inventors: Qiankun Li, Wei Lu