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公开(公告)号：US20220375025A1
公开(公告)日：2022-11-24
申请号：US17713285
申请日：2022-04-05
Applicant: Axis AB
Inventor： Håkan ARDÖ
Abstract: An image processor and a method therein to provide a target image for evaluation with an object detector. The method comprises: obtaining a source image captured by a camera and depicting an object, and applying an inverse pixel transform to each target pixel of a target image to determine one or more source pixels located at a position in the source image corresponding to a position of each target pixel in the target image. The method further comprises assigning, to each target pixel, a target pixel value determined based on one or more source pixel values of the determined one or more source pixels located at the corresponding position, thereby is a size c in the target image of the depicted object of a specific object type normalized in at least one size dimension. Thereafter, the target image is fed to an object detector for evaluation.
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公开(公告)号：US11477459B2
公开(公告)日：2022-10-18
申请号：US17488349
申请日：2021-09-29
Applicant: Axis AB
Inventor： Fredrik Pihl , Mats Lund
IPC: H04N19/146 , H04N19/103 , H04N19/172 , H04N19/176 , H04N7/18
Abstract: An image processing device, a camera and a method of encoding a sequence of video images into a single video stream with dynamic bitrate are provided. The sequence of video images is encoded into frames of a base layer of the single video stream using a base layer resolution and a base layer compression level. Video images of the sequence of video images corresponding to respective times before detecting an event trigger are encoded into a first set of frames of an extended layer of the single video stream. The event trigger is detected and upon detecting the event trigger, video images of the sequence of video images corresponding to respective times after detecting the event trigger are encoded into a second set of frames of the extended layer using a higher resolution than the base layer resolution or a lower compression level than the base layer compression level.
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公开(公告)号：USD965459S1
公开(公告)日：2022-10-04
申请号：US29825713
申请日：2022-02-04
Applicant: Axis AB
Designer： Theodor Wahlgren , Felix Carlsson , Jonas Sjögren , Sebastian Engwall , Mariano Vozzi , Mathias Walter , Oskar Odén
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公开(公告)号：US11454806B2
公开(公告)日：2022-09-27
申请号：US17107085
申请日：2020-11-30
Applicant: Axis AB
Inventor： Hiroyuki Ide
Abstract: A camera having a heating arrangement comprising a heater arranged to supply heat to a window. A thermally conductive member is arranged in contact with a housing and with the heating arrangement, when a temperature at the conductive member is below a threshold, to transfer heat supplied by the heater to the housing. A thermally insulating member is arranged in proximity with the housing and the heating arrangement. The conductive and/or insulating member is configured to, when the temperature increases above the threshold during heater operation, change its extension to enable contact between the insulating member and the housing and between the insulating member and the heating arrangement, and to disable contact between the conductive member and the housing and between the conductive member and the heating arrangement, thereby thermally insulate the housing from the heater.
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公开(公告)号：US20220245760A1
公开(公告)日：2022-08-04
申请号：US17558594
申请日：2021-12-22
Applicant: Axis AB
Inventor： Björn ARDÖ
Abstract: A method includes aligning a first image frame of a first stream of images from a first image sensor and a further first image frame of a second stream of images from a second image sensor according to a first alignment, aligning a second image frame of the first stream of images and a further second image frame of the second stream of images according to the first alignment, obtaining a first stitched image frame by blending the aligned first image frame and further first image frame in a first blending area according to a first blending function, obtaining second stitched image frame by blending the aligned second image frame and the further second image frame in a second blending area according to a second blending function, and evaluating the first alignment from a difference pattern calculated from pixel values of the first stitched frame and the second stitched frame.
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Patent Agency Ranking
公开(公告)号：US11375159B2
公开(公告)日：2022-06-28
申请号：US17069185
申请日：2020-10-13
Applicant: Axis AB
Inventor： Anders Krüger
IPC: H04N7/18 , G06F3/0484 , G06F3/04845
Abstract: A video management system for displaying video streams from a plurality of monitoring devices arranged in a network in a video display arrangement. Each monitoring device constitutes a node in the network and has a logical connection to at least one other node. The video management system is configured to: in response to a first input, zoom out from a first subset of views from a first monitoring device or a first group of monitoring devices to a second subset of views, by adding views from a predetermined number of monitoring devices having a direct logical connection to the first monitoring device or the group of monitoring devices, to the video display arrangement, thereby increasing a neighbor monitoring level by one; and in response to a second input, zoom in from the second subset of views thereby decreasing the neighbor monitoring level by one.
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公开(公告)号：US11368649B2
公开(公告)日：2022-06-21
申请号：US17155234
申请日：2021-01-22
Applicant: Axis AB
Inventor： Viktor A. Andersson
Abstract: A method for streaming a live video stream in a system comprising a video camera generating the live video stream, a video recorder, and a video. The method comprises: at the video server, receiving, from a client device, a request for the live video stream from the video camera; transmitting from the video server, a push trigger to the video camera, the push trigger instructing the video camera to push the live video stream to the video recorder; upon receiving the push trigger, initiating a push of the live video stream from the video camera to the video recorder; pushing the live video stream from the video camera to the video recorder; pulling, by the video server, the live video stream from the video recorder; and transmitting, by the video server, the live video stream to the client device.
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公开(公告)号：US20220187690A1
公开(公告)日：2022-06-16
申请号：US17522575
申请日：2021-11-09
Applicant: Axis AB
Inventor： Mikael PERSSON , Johan WIDERDAL , Johan DITTLÉN , Leigh COLLINS , Ulf LUNDBERG
Abstract: A device configured for mounting to a surface, comprises a base part and an attachment part, the attachment part being attachable to the base part, wherein the base part is provided with a keyhole-shaped opening for receiving a fastener comprising a head and a shaft for attaching the base part to the surface, the keyhole-shaped opening comprises a first segment permitting passage of the head and shaft and a second segment permitting passage of the shaft but preventing passage of the head.
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公开(公告)号：US20220182591A1
公开(公告)日：2022-06-09
申请号：US17528669
申请日：2021-11-17
Applicant: Axis AB
Inventor： Carl-Axel ALM , Stefan LUNDBERG
Abstract: An image processing device a camera and a method for of encoding images captured by a camera are disclosed. For each image of an image sequence captured by the camera, the image is pre-processed by filtering the image by applying a privacy filter, the privacy filter being configured to distort the image in such a way that privacy is achieved in the filtered image, and, for at least a subset of the filtered images, by colour revising the filtered image by changing colour of pixels of a plurality of scattered areas of the filtered image such that a respective colour of one or more pixels of each area of the plurality of scattered areas represents one or more original colours of one or more pixels before filtering at a location of that area in the filtered image. The pre-processed images are then encoded into an encoded video stream.
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70.发明申请公开(公告)号：US20220180105A1
公开(公告)日：2022-06-09
申请号：US17526126
申请日：2021-11-15
Applicant: Axis AB
Inventor： Jiandan CHEN , Haiyan XIE
Abstract: A tag for indicating a region of interest, ROI, has a predefined format and codes ROI information, which is readable by imaging the tag and which includes a size indication and a relative position indication, the respective indications allowing the ROI's size and position to be determined relative to the tag's size and position. A method for locating a ROI in an image comprises: obtaining an image; searching in the image for a tag with the predefined format; and determining a ROI on the basis of the tag's size and position in the image and the ROI information. A method for generating a tag comprises: obtaining an image including a visible provisional tag of same physical size as the tag to be generated; obtaining operator input identifying a ROI in the image; deriving the size indication and relative position indication; and printing the tag.
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