Patents by Inventor Niclas Svensson
Niclas Svensson 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).
-
Patent number: 11653084Abstract: 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: GrantFiled: August 31, 2021Date of Patent: May 16, 2023Assignee: Axis ABInventors: Björn Benderius, Jimmie Jönsson, Johan Jeppsson Karlin, Niclas Svensson
-
Publication number: 20230118532Abstract: 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: ApplicationFiled: September 28, 2022Publication date: April 20, 2023Applicant: Axis ABInventors: Björn BENDERIUS, Jimmie JÖNSSON, Johan Jeppsson KARLIN, Niclas SVENSSON, Andreas MUHRBECK
-
Publication number: 20220109798Abstract: 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: ApplicationFiled: August 31, 2021Publication date: April 7, 2022Applicant: Axis ABInventors: Björn BENDERIUS, Jimmie JÖNSSON, Johan Jeppsson KARLIN, Niclas SVENSSON
-
Patent number: 11252320Abstract: A method for determining whether a video camera is out-of-focus comprises: capturing image data; setting a focus setting difference threshold based on a filter function configured to filter the image data; adjusting a focus setting between a present focus setting and an altered focus setting such that a first subset of the image data is captured with the video camera being set in the present focus setting and such that a second subset of the image data is captured with the video camera being set in the altered focus setting, wherein the adjusting is performed such that a difference between the present and altered focus settings is below the threshold; forming the video stream by applying the filter function on the image data; determining first and second focus metrics of the image data; and determining whether the video camera is out-of-focus by comparing the first and second focus metrics.Type: GrantFiled: March 8, 2021Date of Patent: February 15, 2022Inventors: Johan Jeppsson, Björn Benderius, Niclas Svensson, Fritjof Jonsson, Jonas Levin, Stefan Lindgren
-
Publication number: 20210350129Abstract: Methods and apparatus, including computer program products, for processing images recorded by a camera (202) monitoring a scene (200). A set of images (204, 206, 208) is received. The set of images (204, 206, 208) includes differently exposed images of the scene (200) recorded by the camera (202). The set of images (204, 206, 208) is processed by a trained neural network (210) configured to perform object detection, object classification and/or object recognition in image data, wherein the neural network (210) uses image data from at least two differently exposed images in the set of images (204, 206, 208) to detect objects in the set of images (204, 206, 208).Type: ApplicationFiled: April 7, 2021Publication date: November 11, 2021Inventors: Andreas MUHRBECK, Anton JAKOBSSON, Niclas SVENSSON
-
Publication number: 20210281738Abstract: A method for determining whether a video camera is out-of-focus comprises: capturing image data; setting a focus setting difference threshold based on a filter function configured to filter the image data; adjusting a focus setting between a present focus setting and an altered focus setting such that a first subset of the image data is captured with the video camera being set in the present focus setting and such that a second subset of the image data is captured with the video camera being set in the altered focus setting, wherein the adjusting is performed such that a difference between the present and altered focus settings is below the threshold; forming the video stream by applying the filter function on the image data; determining first and second focus metrics of the image data; and determining whether the video camera is out-of-focus by comparing the first and second focus metrics.Type: ApplicationFiled: March 8, 2021Publication date: September 9, 2021Applicant: Axis ABInventors: Johan JEPPSSON, Björn BENDERIUS, Niclas SVENSSON, Fritjof JONSSON, Jonas LEVIN, Stefan LINDGREN
-
Patent number: 10531001Abstract: A method for controlling a video camera which is configured to capture and process image frames prior to encoding. The method comprises determining whether the video camera is going to encode an image frame as an intra-frame or an inter-frame. If the image frame is going to be encoded as an inter-frame, the video camera is controlled to capture and process the image frame using first settings prior to encoding. If the image frame is going to be encoded as an intra-frame, the video camera is controlled to capture and process the image frame using second settings prior to encoding, wherein the second settings are modified in relation to the first settings to further reduce a level of noise in the image frame.Type: GrantFiled: March 22, 2018Date of Patent: January 7, 2020Assignee: Axis ABInventors: Fredrik Pihl, Xing Danielsson Fan, Björn Benderius, Viktor Edpalm, Niclas Svensson, Henrik Eliasson
-
Patent number: 10382780Abstract: A method of encoding a video stream comprising receiving a frame of a video stream to be encoded, performing motion detection in the frame to identify steady regions, and temporally filtering the frame so as to provide temporally filtered pixel values. For a pixel in the steady regions of the frame, the temporally filtered pixel value is used when encoding the pixel, on a condition that the pixel belongs to a block of pixels of the frame that will be intra-coded. On a condition that the pixel instead belongs to a block of pixels of the frame that will be inter-coded, a value that was used when encoding a corresponding pixel of the immediately preceding frame is used when encoding the pixel.Type: GrantFiled: March 22, 2018Date of Patent: August 13, 2019Assignee: Axis ABInventors: Anton Öhrn, Viktor Edpalm, Henrik Eliasson, Björn Benderius, Niclas Svensson, Xing Danielsson Fan, Fredrik Pihl
-
Publication number: 20180278953Abstract: A method of encoding a video stream comprising receiving a frame of a video stream to be encoded, performing motion detection in the frame to identify steady regions, and temporally filtering the frame so as to provide temporally filtered pixel values. For a pixel in the steady regions of the frame, the temporally filtered pixel value is used when encoding the pixel, on a condition that the pixel belongs to a block of pixels of the frame that will be intra-coded. On a condition that the pixel instead belongs to a block of pixels of the frame that will be inter-coded, a value that was used when encoding a corresponding pixel of the immediately preceding frame is used when encoding the pixel.Type: ApplicationFiled: March 22, 2018Publication date: September 27, 2018Applicant: Axis ABInventors: Anton Öhrn, Viktor Edpalm, Henrik Eliasson, Björn Benderius, Niclas Svensson, Xing Danielsson Fan, Fredrik Pihl
-
Publication number: 20180278849Abstract: A method for controlling a video camera which is configured to capture and process image frames prior to encoding. The method comprises determining whether the video camera is going to encode an image frame as an intra-frame or an inter-frame. If the image frame is going to be encoded as an inter-frame, the video camera is controlled to capture and process the image frame using first settings prior to encoding. If the image frame is going to be encoded as an intra-frame, the video camera is controlled to capture and process the image frame using second settings prior to encoding, wherein the second settings are modified in relation to the first settings to further reduce a level of noise in the image frame.Type: ApplicationFiled: March 22, 2018Publication date: September 27, 2018Applicant: Axis ABInventors: Fredrik Pihl, Xing Danielsson Fan, Björn Benderius, Viktor Edpalm, Niclas Svensson, Henrik Eliasson
-
Patent number: 9012869Abstract: A method and system for luminescence molecular imaging or tomography of a region of interest in a scattering medium is disclosed. The system comprises a non-linear luminescent marker material arranged in the scattering medium. Contrast and resolution of the imaging or tomography is thus improved. The non-linear marker is for instance configured to upconvert incoming light of an illumination wavelength. The non-linear power dependence of the marker enables further improvement of the imaging by using images taken with two or more excitation beams simultaneously.Type: GrantFiled: May 5, 2010Date of Patent: April 21, 2015Assignee: Lumito ABInventors: Stefan Andersson-Engels, Can Xu, Haichun Liu, Johan Axelsson, Niclas Svensson, Pontus Svenmarker
-
Publication number: 20120104281Abstract: A method and system for luminescence molecular imaging or tomography of a region of interest in a scattering medium is disclosed. The system comprises a non-linear luminescent marker material arranged in the scattering medium. Contrast and resolution of the imaging or tomography is thus improved. The non-linear marker is for instance configured to upconvert incoming light of an illumination wavelength. The non-linear power dependence of the marker enables further improvement of the imaging by using images taken with two or more excitation beams simultaneously.Type: ApplicationFiled: May 5, 2010Publication date: May 3, 2012Applicant: Lumito ABInventors: Stefan Andersson-Engels, Can Xu, Haichun Liu, Johan Axelssen, Niclas Svensson, Pontus Svenmarker