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公开(公告)号：US20180356496A1
公开(公告)日：2018-12-13
申请号：US16000490
申请日：2018-06-05
Applicant: Axis AB
Inventor： Mazdak Farzone , Madeleine Boström , Tobias Claesson , Aras Papadelis
CPC classification number: G01S7/292 , G01S7/024 , G01S7/414 , G01S13/52 , G01S13/589 , G01S13/726
Abstract: A method for, in a map of background objects, registering presence of a stationary object exhibiting motion at a location in a scene monitored by a radar detector comprising detecting over time radar echoes at a radar detector monitoring a scene. The moving object is one of a true moving object or a stationary object exhibiting motion. The over time detected radar echoes are evaluated for finding a stationary object exhibiting motion. The presence of the stationary object exhibiting motion is registered at a location, corresponding to the location of the stationary object exhibiting motion, in a map of background objects. A method for detecting moving objects using a radar detector is also presented wherein the map of background objects is used as input.
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公开(公告)号：US11455503B2
公开(公告)日：2022-09-27
申请号：US17030700
申请日：2020-09-24
Applicant: Axis AB
Inventor： Andres Vigren , Aras Papadelis , Daniel Ståhl , Arnab Bhattacharjee
Abstract: Apparatus are provided for generating an object classification for an object, the apparatus comprising an image sensor, a radar sensor, and a processing unit, the processing unit configured to perform the steps of: receiving image data for the object from the image sensor, operating an image-based object classifier on the image data to generate an image-based object classification, receiving radar data for the object from the radar sensor, operating a radar-based object classifier on the radar data to generate a radar-based object classification, selecting between the image-based object classification and the radar-based object classification to output as the object classification for the object, determining if a training condition is met by the radar-based object classification, and training the radar-based object classifier using the image-based object classification when the training condition is met by the radar-based object classification.
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Patent Agency Ranking
公开(公告)号：US11016176B2
公开(公告)日：2021-05-25
申请号：US15945457
申请日：2018-04-04
Applicant: AXIS AB
Inventor： Aras Papadelis , Peter Henricsson , Mikael Göransson
IPC: G01S7/48 , G01S13/86 , G01S7/295 , G01S7/40 , G01S17/42 , G01S7/51 , G01S13/42 , G01S7/06 , G01S7/497 , G01S13/88 , G01S17/86 , G06K9/00
Abstract: A method, device and system for generating a transformation function, mapping position detections of objects in a scene, detected with a positioning device, to a graphical representation of the scene. The teachings enable the detected positions by the positioning device to be mapped to the graphical representation of the monitored scene without the need of previous references to geographical coordinate systems for the positioning device and the graphical representation of the scene. Virtually any type of image may hence be used as a graphical representation of the scene, even hand-drawn sketches.
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4.发明申请公开(公告)号：US20180292526A1
公开(公告)日：2018-10-11
申请号：US15945457
申请日：2018-04-04
Applicant: AXIS AB
Inventor： Aras Papadelis , Peter Henricsson , Mikael Göransson
Abstract: A method, device and system for generating a transformation function, mapping position detections of objects in a scene, detected with a positioning device, to a graphical representation of the scene. The teachings enable the detected positions by the positioning device to be mapped to the graphical representation of the monitored scene without the need of previous references to geographical coordinate systems for the positioning device and the graphical representation of the scene. Virtually any type of image may hence be used as a graphical representation of the scene, even hand-drawn sketches.
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公开(公告)号：US12276722B2
公开(公告)日：2025-04-15
申请号：US17748223
申请日：2022-05-19
Applicant: Axis AB
Inventor： Anders Mannesson , André Nüsslein , Anton Sedin , Aras Papadelis , Daniel Ståhl , David Wadmark , Sebastian Heunisch , Stefan Adalbjörnsson
Abstract: A method for classifying tracks in radar detections of a scene acquired by a stationary radar unit, comprises: acquiring radar detections of the scene using the static radar unit; feeding at least a portion of the radar detections into a tracker module for producing track-specific feature data indicating a specific track in the scene, feeding at least a portion of the radar detections into a scene model comprising information about scene-specific features aggregated over time, and information indicating areas in the scene with expected ghost target detections and areas with expected real target detections, wherein at least a subset of the scene-specific features is determined from the radar detections; classifying the specific track as belonging to a real target or to a ghost target by relating the specific track to a position in the scene model.
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公开(公告)号：US10970861B2
公开(公告)日：2021-04-06
申请号：US16408743
申请日：2019-05-10
Applicant: Axis AB
Inventor： Aras Papadelis , August Bergoo , Daniel Stahl , Simon Jonsson
Abstract: A method (200) of determining a transformation matrix for transformation of ranging data from a first coordinate system for the ranging sensor to a second coordinate system for an image sensor is disclosed. The method comprises providing (201) a ranging sensor and an image sensor; acquiring (202) a ranging frame sequence, and an image frame sequence; determining (203) points of motion in frames of each acquired frame sequence; for each frame in one of the frame sequences: evaluating (204) if a single motion point has been determined in the frame, and if a single motion point has been determined, evaluating (206) if a single motion point has been determined in a temporally corresponding frame of the other frame sequence and, in that case, pairing (207) the temporally corresponding frames, whereby a set of frame pairs is formed, and determining (209) the transformation matrix based on the set of frame pairs.
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公开(公告)号：US10969464B2
公开(公告)日：2021-04-06
申请号：US16000490
申请日：2018-06-05
Applicant: Axis AB
Inventor： Mazdak Farzone , Madeleine Boström , Tobias Claesson , Aras Papadelis
Abstract: A method for, in a map of background objects, registering presence of a stationary object exhibiting motion at a location in a scene monitored by a radar detector comprising detecting over time radar echoes at a radar detector monitoring a scene. The moving object is one of a true moving object or a stationary object exhibiting motion. The over time detected radar echoes are evaluated for finding a stationary object exhibiting motion. The presence of the stationary object exhibiting motion is registered at a location, corresponding to the location of the stationary object exhibiting motion, in a map of background objects. A method for detecting moving objects using a radar detector is also presented wherein the map of background objects is used as input.
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