Patents by Inventor Jimmie Jonsson

Jimmie Jonsson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240202968
    Abstract: The present disclosure relates to a method for determining a direction at a position (211), the method (100) comprises obtaining (110) an orthorectified photo (210) of a region of Earth's surface comprising the position (211), and a coordinate system for the orthorectified photo (210); identifying (120) the position (211) in the orthorectified photo (210); identifying (130) a reference object (212) in the orthorectified photo (210); determining (140) a reference direction (215) between the position (211) and the identified reference object (212); capturing (150) at least one digital photo (220; 230) at the position (211) with a calibrated digital camera (331), wherein at least one of the at least one captured digital photo (220) depicts the reference object (222); and determining (190) the direction based on the at least one captured digital photo (220; 230) and the determined reference direction (215), wherein the determined direction is based on at least one pixel coordinate corresponding to the depicted re
    Type: Application
    Filed: March 29, 2022
    Publication date: June 20, 2024
    Inventors: Linnea NILSSON, Jimmy JONSSON, Per-Olof PERSSON
  • Patent number: 11800040
    Abstract: The present disclosure relates to a method performed by a deviation analyzing system (1) for black level drift assessment of a digital camera image sensor (21). The deviation analyzing system measures (1001) for pixels of an image captured by the image sensor, a respective luminance value and corresponding chromaticity value of each pixel. The deviation analyzing system further determines (1002) a respective average chromaticity value for differing luminance levels of the measured luminance values, based on for each luminance level averaging the corresponding measured chromaticity values. Moreover, the deviation analyzing system determines (1003), when the respective average chromaticity values of a range (4) of luminance levels indicate—to a predeterminable extent—chromaticity deviations (5) from the respective average chromaticity values (6) of other luminance levels (7), that a black level setting of the image sensor is drifted from a true black level.
    Type: Grant
    Filed: May 21, 2021
    Date of Patent: October 24, 2023
    Assignee: AXIS AB
    Inventors: Johan Jeppsson Karlin, Jimmie Jönsson
  • Patent number: 11653084
    Abstract: A method of configuring a camera comprising: collecting a video data with the camera, providing a plurality of imaging profiles, each imaging profile being associated with a set of scene characteristics, for each imaging profile, generating a spatial output data in dependence on the video data and the set of scene characteristics of the imaging profile, wherein the spatial output data is indicative of spatial locations of events detected in the video data matching one or more of the scene characteristics, performing a comparison of the spatial output data of each of the plurality of imaging profiles, selecting a preferred imaging profile in dependence on the comparison, configuring the camera to operate according to the preferred imaging profile.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: May 16, 2023
    Assignee: Axis AB
    Inventors: Björn Benderius, Jimmie Jönsson, Johan Jeppsson Karlin, Niclas Svensson
  • Publication number: 20230118532
    Abstract: A first image is captured by the camera, using a first focus setting and a first aperture size. A first protrusion focus measure in a protrusion area of an object in the first image and a first recess focus measure in a recess area of the object in the first image are determined. A second image is captured by the camera, using the first focus setting and a second aperture size, and the object is detected. A second protrusion focus measure and a second recess focus measure are determined in the second image. A protrusion focus difference between the first and second protrusion focus measures, and a recess focus difference between the first and second recess focus measures are calculated. The protrusion focus difference and the recess focus difference are compared and if they differ by less than a predetermined threshold amount, it is determined that the object is fake.
    Type: Application
    Filed: September 28, 2022
    Publication date: April 20, 2023
    Applicant: Axis AB
    Inventors: Björn BENDERIUS, Jimmie JÖNSSON, Johan Jeppsson KARLIN, Niclas SVENSSON, Andreas MUHRBECK
  • Patent number: 11631183
    Abstract: The present disclosure relates to a method of motion segmentation (100) in a video stream. The method comprises the steps of: acquiring (101) a sequence of image frames; dividing (102) a first frame (401) into a plurality of image blocks (403); comparing (103) each image block (403) against a corresponding reference image block (404) and providing a measure of dissimilarity; for image blocks having a measure of dissimilarity less than a threshold: discarding (104a) the image blocks, and for image blocks having a measure of dissimilarity greater than the threshold: keeping (104b) the image blocks and further dividing the image blocks into a new plurality of image blocks (405); repeating the steps of dividing (102) and comparing (103) until a stop condition is met (105a); generating (106) a motion mask (407) indicating areas of movement (408).
    Type: Grant
    Filed: September 27, 2021
    Date of Patent: April 18, 2023
    Assignee: AXIS AB
    Inventors: Jimmie Jönsson, Johan Jeppsson Karlin
  • Patent number: 11611812
    Abstract: A method for assessing an ambient light level during video acquisition with a video camera is provided. The video camera is operably connected with an IR illuminator, and having a day mode in which an IR-cut filter is arranged in front of an image sensor and a night mode in which the IR-cut filter is not arranged in front of the image sensor. The method comprises: acquiring a stream of images with the video camera in night mode, with the IR illuminator having a first illumination output level, and then reducing an output level of the IR illuminator to a predetermined illumination output level during acquisition of a sequence of a predetermined number of consecutive image frames within the image stream, and then assessing a measure representative of an ambient light level from an evaluation of the sequence of image frames.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: March 21, 2023
    Assignee: AXIS AB
    Inventors: Jimmie Jönsson, Pontus Rosenberg, Ola Håkansson, Axel Thuresson
  • Publication number: 20220114736
    Abstract: The present disclosure relates to a method of motion segmentation (100) in a video stream. The method comprises the steps of: acquiring (101) a sequence of image frames; dividing (102) a first frame (401) into a plurality of image blocks (403); comparing (103) each image block (403) against a corresponding reference image block (404) and providing a measure of dissimilarity; for image blocks having a measure of dissimilarity less than a threshold: discarding (104a) the image blocks, and for image blocks having a measure of dissimilarity greater than the threshold: keeping (104b) the image blocks and further dividing the image blocks into a new plurality of image blocks (405); repeating the steps of dividing (102) and comparing (103) until a stop condition is met (105a); generating (106) a motion mask (407) indicating areas of movement (408).
    Type: Application
    Filed: September 27, 2021
    Publication date: April 14, 2022
    Applicant: Axis AB
    Inventors: Jimmie JÖNSSON, Johan Jeppsson KARLIN
  • Publication number: 20220109798
    Abstract: A method of configuring a camera comprising: collecting a video data with the camera, providing a plurality of imaging profiles, each imaging profile being associated with a set of scene characteristics, for each imaging profile, generating a spatial output data in dependence on the video data and the set of scene characteristics of the imaging profile, wherein the spatial output data is indicative of spatial locations of events detected in the video data matching one or more of the scene characteristics, performing a comparison of the spatial output data of each of the plurality of imaging profiles, selecting a preferred imaging profile in dependence on the comparison, configuring the camera to operate according to the preferred imaging profile.
    Type: Application
    Filed: August 31, 2021
    Publication date: April 7, 2022
    Applicant: Axis AB
    Inventors: Björn BENDERIUS, Jimmie JÖNSSON, Johan Jeppsson KARLIN, Niclas SVENSSON
  • Publication number: 20210377425
    Abstract: The present disclosure relates to a method performed by a deviation analyzing system (1) for black level drift assessment of a digital camera image sensor (21). The deviation analyzing system measures (1001) for pixels of an image captured by the image sensor, a respective luminance value and corresponding chromaticity value of each pixel. The deviation analyzing system further determines (1002) a respective average chromaticity value for differing luminance levels of the measured luminance values, based on for each luminance level averaging the corresponding measured chromaticity values. Moreover, the deviation analyzing system determines (1003), when the respective average chromaticity values of a range (4) of luminance levels indicate—to a predeterminable extent—chromaticity deviations (5) from the respective average chromaticity values (6) of other luminance levels (7), that a black level setting of the image sensor is drifted from a true black level.
    Type: Application
    Filed: May 21, 2021
    Publication date: December 2, 2021
    Applicant: Axis AB
    Inventors: Johan JEPPSSON KARLIN, Jimmie JÖNSSON
  • Publication number: 20210306546
    Abstract: A method for assessing an ambient light level during video acquisition with a video camera is provided. The video camera is operably connected with an IR illuminator, and having a day mode in which an IR-cut filter is arranged in front of an image sensor and a night mode in which the IR-cut filter is not arranged in front of the image sensor. The method comprises: acquiring a stream of images with the video camera in night mode, with the IR illuminator having a first illumination output level, and then reducing an output level of the IR illuminator to a predetermined illumination output level during acquisition of a sequence of a predetermined number of consecutive image frames within the image stream, and then assessing a measure representative of an ambient light level from an evaluation of the sequence of image frames.
    Type: Application
    Filed: February 8, 2021
    Publication date: September 30, 2021
    Applicant: Axis AB
    Inventors: Jimmie JÖNSSON, Pontus ROSENBERG, Ola HÅKANSSON, Axel THURESSON
  • Patent number: 10963997
    Abstract: A method and a digital video camera for reducing intensity variations in a video stream depicting a scene comprising capturing, using a first sensor setting, a first frame; detecting a change in intensity in a portion of the first frame, the portion represents a first area of the scene; determining a second sensor setting based on the first frame; capturing, using the second sensor setting, a second frame; creating a local tone mapping mask, wherein a local tone mapping in the first area of the scene is different from a local tone mapping in an area outside the first area, and wherein the local tone mapping in the area outside the first area is based on a relation between the first sensor setting and the second sensor setting; and applying the local tone mapping mask to the second frame.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: March 30, 2021
    Assignee: AXIS AB
    Inventors: Sebastian Fors, Johan Jeppsson, Anton Ohrn, Jimmie Jonsson, Bjorn Benderius, Andreas Muhrbeck, Karin Dammer
  • Publication number: 20200167901
    Abstract: A method and a digital video camera for reducing intensity variations in a video stream depicting a scene comprising capturing, using a first sensor setting, a first frame; detecting a change in intensity in a portion of the first frame, the portion represents a first area of the scene; determining a second sensor setting based on the first frame; capturing, using the second sensor setting, a second frame; creating a local tone mapping mask, wherein a local tone mapping in the first area of the scene is different from a local tone mapping in an area outside the first area, and wherein the local tone mapping in the area outside the first area is based on a relation between the first sensor setting and the second sensor setting; and applying the local tone mapping mask to the second frame.
    Type: Application
    Filed: November 21, 2019
    Publication date: May 28, 2020
    Applicant: Axis AB
    Inventors: Sebastian Fors, Johan Jeppsson, Anton Ohrn, Jimmie Jonsson, Bjorn Benderius, Andreas Muhrbeck, Karin Dammer
  • Patent number: 10484622
    Abstract: A near-infrared sensitive video camera comprises a control unit configured to: dynamically detect a setting of the camera, the setting being one or more of: a zoom level, a focus setting and a setting of an IR-illuminator of camera. The control unit dynamically acquires a gain setting map for an image sensor, the acquired gain setting map being associated with the dynamically detected setting of the camera and comprising individual gain settings of the image sensor. Dynamically acquiring the gain setting map comprises accessing a database of gain setting maps associated with specific settings of the camera and on the dynamically detected setting of the camera; and dynamically adjusting a gain setting of the image sensor based on the acquired gain setting map.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: November 19, 2019
    Assignee: Axis AB
    Inventor: Jimmie Jönsson
  • Publication number: 20180352175
    Abstract: A near-infrared sensitive video camera comprises a control unit configured to: dynamically detect a setting of the camera, the setting being one or more of: a zoom level, a focus setting and a setting of an IR-illuminator of camera. The control unit dynamically acquires a gain setting map for an image sensor, the acquired gain setting map being associated with the dynamically detected setting of the camera and comprising individual gain settings of the image sensor. Dynamically acquiring the gain setting map comprises accessing a database of gain setting maps associated with specific settings of the camera and on the dynamically detected setting of the camera; and dynamically adjusting a gain setting of the image sensor based on the acquired gain setting map.
    Type: Application
    Filed: May 30, 2018
    Publication date: December 6, 2018
    Applicant: Axis AB
    Inventor: Jimmie Jönsson
  • Patent number: 9208690
    Abstract: A method for calculating a Time To Go value between a vehicle and an intruding object. First and second images of the object are retrieved at first and second points of time. A scaling factor is selected and the second image scaled with the scale factor. The scaled image is resampled to a set position. Correlation values are calculated between the first image and the resampled scaled image for different horizontal displacements and/or different vertical displacements for the resampled scaled image. A maximum correlation value is found based on the correlation values. Selecting the scaling factor, resampling, calculating the correlation values, and finding the maximum correlation values are repeated a second predetermined number of times. A largest maximum correlation value is found among the maximum correlation values and the scale factor associated with the largest maximum correlation value. The Time To Go is calculated based on the associated scale factor.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: December 8, 2015
    Assignee: SAAB AB
    Inventor: Jimmy Jonsson
  • Patent number: 8970401
    Abstract: A collision avoidance system for deciding whether an autonomous avoidance maneuver should be performed in order to avoid a mid-air collision between a host aerial vehicle equipped with the system and an intruding aerial vehicle. At least one electro-optical sensor captures consecutive images of an intruding vehicle such that the vehicle manifests itself as a target point in the images. An image processor estimates the azimuth angle, elevation angle and a first time-to-collision estimate of the time to collision between the host vehicle and the intruding vehicle. The first time-to-collision estimate is estimated based on scale change in the target point between at least two of said consecutive images. A tracking filter is arranged to estimate a second time-to-collision estimate using the azimuth angle, the elevation angle and the first time-to-collision estimate estimated by the image processor as input parameters.
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: March 3, 2015
    Assignee: SAAB AB
    Inventors: Sören Molander, Jimmy Jonsson
  • Publication number: 20140278048
    Abstract: A method for calculating a Time To Go value between a vehicle and an intruding object. First and second images of the object are retrieved at first and second points of time. A scaling factor is selected and the second image scaled with the scale factor. The scaled image is resampled to a set position. Correlation values are calculated between the first image and the resampled scaled image for different horizontal displacements and/or different vertical displacements for the resampled scaled image. A maximum correlation value is found based on the correlation values. Selecting the scaling factor, resampling, calculating the correlation values, and finding the maximum correlation values are repeated a second predetermined number of times. A largest maximum correlation value is found among the maximum correlation values and the scale factor associated with the largest maximum correlation value. The Time To Go is calculated based on the associated scale factor.
    Type: Application
    Filed: May 28, 2014
    Publication date: September 18, 2014
    Applicant: SAAB AB
    Inventor: Jimmy Jonsson
  • Patent number: 8774457
    Abstract: A method and a system for calculating a time to go value between a vehicle and an intruding object. A first image of the intruding object at a first point of time retrieved. A second image of the intruding object at a second point of time is retrieved. The first image and the second image are filtered so that the first image and the second image become independent of absolute signal energy and so that edges become enhanced. An X fractional pixel position and a Y fractional pixel position are set to zero. The X fractional pixel position denotes a horizontal displacement at sub pixel level and the Y fractional pixel position denotes a vertical displacement at sub pixel level. A scale factor is selected. The second image is scaled with the scale factor and resampled to the X fractional pixel position and the Y fractional pixel position, which results in a resampled scaled image.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: July 8, 2014
    Assignee: SAAB AB
    Inventor: Jimmy Jonsson
  • Publication number: 20120099764
    Abstract: A method and a system for calculating a time to go value between a vehicle and an intruding object. A first image of the intruding object at a first point of time retrieved. A second image of the intruding object at a second point of time is retrieved. The first image and the second image are filtered so that the first image and the second image become independent of absolute signal energy and so that edges become enhanced. An X fractional pixel position and a Y fractional pixel position are set to zero. The X fractional pixel position denotes a horizontal displacement at sub pixel level and the Y fractional pixel position denotes a vertical displacement at sub pixel level. A scale factor is selected. The second image is scaled with the scale factor and resampled to the X fractional pixel position and the Y fractional pixel position, which results in a resampled scaled image.
    Type: Application
    Filed: March 18, 2009
    Publication date: April 26, 2012
    Applicant: SAAB AB
    Inventor: Jimmy Jonsson