Method and electronic device for increased dynamic range of an image

    公开(公告)号:US11956552B2

    公开(公告)日:2024-04-09

    申请号:US17505682

    申请日:2021-10-20

    申请人: Axis AB

    发明人: Axel Thuresson

    IPC分类号: H04N23/741 G06T5/70 H04N23/74

    摘要: A method includes controlling a light source to output a first intensity of light while an image-capturing device captures a scene in a first upcoming image frame with a first exposure value setting, controlling the light source to switch from the first to a second intensity of light so the light source outputs the second intensity of light while capturing the scene with a second upcoming image frame with a second exposure value setting, wherein the second intensity of light is higher than the first intensity of light when the second exposure value setting is higher than the first exposure value setting, and the second intensity of light is lower than the first when the second exposure value setting is lower than the first exposure value setting, and stitching the first upcoming image frame with the second upcoming image frame into a high-dynamic range image frame.

    Shield for camera
    23.
    外观设计

    公开(公告)号:USD1013761S1

    公开(公告)日:2024-02-06

    申请号:US29747619

    申请日:2020-08-24

    申请人: Axis AB

    摘要: FIG. 1 is a front, left side, top perspective view of a shield for camera showing our new design;
    FIG. 2 is a front view thereof;
    FIG. 3 is a rear view thereof;
    FIG. 4 is a left side view thereof;
    FIG. 5 is a right side view thereof;
    FIG. 6 is a top view thereof; and,
    FIG. 7 is a bottom view thereof.
    The broken lines in the drawings illustrate portions of the shield for camera that form no part of the claimed design.

    Controller, method, and computer program for reading of an RS485 data signal and a Wiegand data signal

    公开(公告)号:US11875671B2

    公开(公告)日:2024-01-16

    申请号:US17570450

    申请日:2022-01-07

    申请人: Axis AB

    发明人: Daniel Björkman

    IPC分类号: G08C19/00 G08C25/00

    CPC分类号: G08C19/00 G08C25/00

    摘要: A controller for reading both an RS485 data signal and a Wiegand data signal from a user connector having two output ports. The controller comprises an RS485 transceiver with two input ports, each of which is connected to a respective one of the two output ports of the user connector or reading one data signal on each of the output ports from the user connector, and an output port for providing an RS485 data signal that is defined by the data signals read on the two output ports. The controller comprises an RS485 interface for receiving the RS485 data signal, and a Wiegand interface for receiving the RS485 data signal and a data ready port connected to the two input ports via a first logic circuit for determining whether the RS485 data signal is to be read as a Wiegand data signal or not on the Wiegand data port.

    DEVICE AND A METHOD FOR SIGNING A METADATA FRAME CORRESPONDING TO AN IMAGE FRAME OF A SEQUENCE OF IMAGE FRAMES

    公开(公告)号:US20240007299A1

    公开(公告)日:2024-01-04

    申请号:US18142582

    申请日:2023-05-03

    申请人: Axis AB

    摘要: A device, a non-transitory computer-readable storage medium, and a method of signing a metadata frame corresponding to an image frame of a sequence of image frames are disclosed. The metadata frame comprises metadata of one or more detected objects in the image frame, and the metadata of each detected object comprises coordinates defining a location in the image frame of the detected object. A digital signature is generated based on at least a subset of the metadata in the metadata frame, and additional metadata are added to the metadata frame. The additional metadata comprise the digital signature and predefined coordinates which define that the additional metadata comprise the digital signature. Furthermore, a device, a non-transitory computer-readable storage medium, and method of authenticating a digitally signed metadata frame corresponding to an image frame of a sequence of image frames are disclosed.

    OBJECT TRACKING USING SCENE-, OBJECT- AND LOCATION SPECIFIC TRACKING PARAMETERS

    公开(公告)号:US20240005516A1

    公开(公告)日:2024-01-04

    申请号:US18341004

    申请日:2023-06-26

    申请人: Axis AB

    IPC分类号: G06T7/20 G06V10/764

    摘要: A method for tracking an object in a scene is provided, including receiving a first image frame of a first image stream capturing a scene; detecting or tracking a first object in the first image frame, and determining that the first object is in a first part of the first image frame; determining, using object detection, that the first object belongs to a first object class; determining, based on multiple values of a tracking parameter each specific for different parts of the first image frame and for different object classes, a first value of the tracking parameter for the first part of the first image and for the first object class, and tracking the first object in a second image frame of the first image stream subsequent to the first image frame, based on the first value of the tracking parameter.

    METHOD AND A DEVICE FOR PROVIDING DATA FROM A NETWORK CAMERA

    公开(公告)号:US20230403462A1

    公开(公告)日:2023-12-14

    申请号:US18327348

    申请日:2023-06-01

    申请人: Axis AB

    发明人: Mats LUND

    IPC分类号: H04N23/661 H04L9/40

    CPC分类号: H04N23/661 H04L63/083

    摘要: A method for providing data from a network camera performed in a processing unit of a portable device having a physical communication interface, whereby the portable device has been associated with the network camera. The method comprises: upon detecting a connection to a connected client device at the physical communication interface, establishing a connection to the associated network camera using association data that have been received from the associated network camera when the portable device became associated with the network camera; receiving data from the network camera via the established connection; and transmitting the received data to the connected client device. A portable device and a system of a portable device and a network camera are also disclosed.

    CABLE RETENTION ARRANGEMENT AND ELECTRONIC DEVICE COMPRISING SUCH CABLE RETENTION ARRANGEMENT

    公开(公告)号:US20230397357A1

    公开(公告)日:2023-12-07

    申请号:US18312137

    申请日:2023-05-04

    申请人: Axis AB

    IPC分类号: H05K7/12 G08B13/196

    CPC分类号: H05K7/12 G08B13/1963

    摘要: A cable retention arrangement for an electronic device, such as a surveillance camera, comprises a base member and an attachment member releasably attachable to the base member. The base member is provided with a channel configured to receive a cable and arranged in a surface of the base member configured to face the attachment member in an assembled state of the cable retention arrangement in which the attachment member is attached to the base member. The channel extends between a cable entry and a cable exit and the attachment member is provided with a slit which, in the assembled state of the cable retention arrangement, is configured to extend in a direction traversing the channel such that the cable exit of the channel is defined at the intersection of the channel and the slit. The disclosure further relates to an electronic device comprising such a cable retention arrangement.

    SYSTEM AND METHOD FOR IMAGE CODING USING DUAL IMAGE MODELS

    公开(公告)号:US20230328260A1

    公开(公告)日:2023-10-12

    申请号:US18295556

    申请日:2023-04-04

    申请人: Axis AB

    摘要: A method of encoding an image comprises establishing whether objects constituting one or more predefined object types or performing one or more predefined event types are visible in the image; in response to establishing that the objects are visible, encoding at least one region-of-interest of the image using a non-generative image model, thereby obtaining first image data; and encoding any remainder of the image using a generative image model, thereby obtaining second image data, wherein use of the non-generative image model enables decoding of the first image data without relying on information derived from images other than the encoded image or, if the image is a frame in a video sequence, enables decoding of the first image data without relying on information derived from images outside the video sequence.