公开(公告)号：US20250168326A1

公开(公告)日：2025-05-22

申请号：US18945164

申请日：2024-11-12

Applicant: Axis AB

Inventor： Viktor EDPALM ,  Johan EKENSTIERNA ,  Martin GREN

IPC: H04N19/107 ,  H04N19/124 ,  H04N19/136 ,  H04N19/167 ,  H04N19/176

Abstract: There is provided a method and an encoder for inter-encoding an image frame in a sequence of image frames. The method comprises obtaining a compression level for each pixel block of the image frame, inter-encoding the image frame in a first encoding pass using the obtained compression level and identifying pixel blocks in the image frame that were intra-coded in the first encoding pass and for which the obtained compression level exceeds a compression level threshold. The method further comprises lowering the compression level for the identified pixel blocks, and inter-encoding the image frame in a second encoding pass using the lowered compression level for the identified pixel blocks and the obtained compression level for each remaining pixel block.

公开(公告)号：US12278970B2

公开(公告)日：2025-04-15

申请号：US17942592

申请日：2022-09-12

Applicant: Axis AB

Inventor： Mattias Pettersson ,  Björn Völcker ,  Malte Johansson

IPC: H04N19/15 ,  H04N19/107 ,  H04N19/136 ,  H04N19/177 ,  H04N19/184 ,  H04N19/423

Abstract: A computer implemented method for controlling a transmission of a video stream is provided. The method comprises estimating a number of bits for a group of pictures, GOP, of the video stream to be transmitted, setting a latency requirement for the transmission of the video stream, determining an average minimum video bitrate across the GOP based on the estimated number of bits and a time corresponding to a time period represented by a duration of the GOP, for video frames in the GOP setting an output bitrate for transmission of a video frame based on the latency requirement and the average minimum video bitrate, and transmitting the video frame using the output bitrate.

公开(公告)号：USD1067893S1

公开(公告)日：2025-03-25

申请号：US29913093

申请日：2023-09-27

Applicant: AXIS AB

Designer： Jonas Sjögren ,  Mariano Vozzi ,  Dan Carlberg ,  Sebastian Engwall ,  Sandra Larsson ,  Magnus Persson ,  Nina Ohlin ,  Mathias Walter ,  Gustav Stafström ,  Stefan Y. Johansson ,  Hannes Rylander

公开(公告)号：USD1065296S1

公开(公告)日：2025-03-04

申请号：US29896227

申请日：2023-06-30

Applicant: AXIS AB

Designer： Jonna Lagerblad ,  Tobias Karenil ,  Sebastian Engwall ,  Jonas Sjögren ,  Mariano Vozzi

公开(公告)号：USD1055885S1

公开(公告)日：2024-12-31

申请号：US29781404

申请日：2021-04-29

Applicant: Axis AB

Designer： Jonas Sjögren ,  Sebastian Engwall ,  Mariano Vozzi ,  Ilhan Veli

公开(公告)号：US20240422362A1

公开(公告)日：2024-12-19

申请号：US18734460

申请日：2024-06-05

Applicant: Axis AB

Inventor： Axel KESKIKANGAS ,  Viktor EDPALM

IPC: H04N19/91 ,  H04N19/156 ,  H04N19/70

Abstract: A method of processing digital video data comprises continuously capturing digital video data representing image frames. While capturing the digital video data, the digital video data is encoded into a sequence of encoded image frames, the sequence comprising key frames and delta frames, and storing the sequence of encoded image frames. It is then determined that the stored sequence of encoded image frames is to be entropy coded and, as a consequence, entropy coding the sequence of encoded image frames into an entropy coded sequence of image frames and storing the entropy coded sequence of image frames.

公开(公告)号：US20240420372A1

公开(公告)日：2024-12-19

申请号：US18653356

申请日：2024-05-02

Applicant: Axis AB

Inventor： Jiandan CHEN ,  Johan STERNBY ,  Joel SJÖBOM ,  Ruben BERGENGRIP ,  Max JOKI

IPC: G06T7/90 ,  G06T7/246

Abstract: A method, system and software for determine a color of a tracked object. Using a first video sequence and foreground objects detected therein, a color rendering metric may be determined for each area of a plurality of areas in the scene. Such color rendering metrics may then be used in case a tracked object is determined to have different colors in different images of a second video sequence, such that the colors detected in an area associated with a higher color rendering metric is selected over an area associated with a lower color rendering metric.

公开(公告)号：US20240404083A1

公开(公告)日：2024-12-05

申请号：US18653343

申请日：2024-05-02

Applicant: Axis AB

Inventor： Niclas DANIELSSON ,  Anton ÖHRN

IPC: G06T7/246 ,  G06V10/75

Abstract: A method of detecting a change of ratio of occlusion of a tracked object in a video sequence. For each of a plurality of image frames, a bounding box of the tracked object is determined and for each pair of successive image frames, an intersection over union (IoU) of a first bounding box in a first image frame and a second bounding box in a second image frame is calculated. Similarly, for a further pair of successive image frames, a further IoU of a first bounding box in a first image frame of the further pair of successive image frames and a second bounding box in a second image frame of the further pair of successive image frames is calculated. If the further IoU differs from the calculated IoUs by more than a threshold amount, the ratio of occlusion of the tracked object has changed.

公开(公告)号：US20240386611A1

公开(公告)日：2024-11-21

申请号：US18656981

申请日：2024-05-07

Applicant: Axis AB

Inventor： Niclas DANIELSSON ,  Felix Lundström ,  Johan Modin

IPC: G06T7/90 ,  G06T7/20 ,  G06V10/56 ,  G06V10/60 ,  G06V10/74 ,  G06V10/762

Abstract: A method, system and software for searching for an object in a forensic search application comprises: determining a plurality of static areas in the scene; obtaining a first image depicting the scene comprising an object; determining a plurality of candidate color transforms; determining a plurality of candidate color values of the object by applying each of the plurality of candidate color transform to third pixel data from the first image, said third pixel data depicting the object in the first image; searching for an object in a forensic search application using a search request comprising a first color value; determining that the first color value matches one or more candidate color values; and returning a search response based at least in part on the object.

公开(公告)号：US20240368881A1

公开(公告)日：2024-11-07

申请号：US18645937

申请日：2024-04-25

Applicant: Axis AB

Inventor： Alexander Sari ,  Nina Ohlin

IPC: E04B2/72 ,  F16M13/02

Abstract: An arrangement for attachment of devices to a surface, such as a wall, comprises at least one device, and for each device, at least two mounting brackets. Each device has a rear side provided with a recess for each mounting bracket, wherein each mounting bracket has a male connector end and a female connector end, the male connector end being configured to be received by the female connector end of an adjoining mounting bracket associated to a neighbouring device. Each male connector end is provided with a through hole for receiving an attachment means, such as a screw. Each mounting bracket is insertable into its associated recess with an orientation in which the male connector end extends beyond a periphery of the device, and each mounting bracket is insertable into its associated recess with an orientation in which the female connector end is accessible from the periphery of the device.