Patents by Inventor Tobias Hoglund
Tobias Hoglund 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).
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Patent number: 10936063Abstract: Disclosed is a method for calibrating an eye-tracking device to suit a user of the eye-tracking device, wherein a calibration setting of the eye-tracking device—associated with a user is calculated based on acquired eye data of the user when looking at a set of reference points. The method comprises displaying a reference point of the set to the user; acquiring, by means of at least one camera of the eye-tracking device, eye data for at least one of the eyes of the user when looking at the reference point; comparing the acquired eye data to stored eye data sets related to the reference point, wherein each of the stored eye data sets is associated with a calibration setting of the eye-tracking device; and if the acquired eye data matches one of the stored eye data sets, abandoning the calibration process and loading the calibration setting associated with the matching stored eye data.Type: GrantFiled: November 12, 2019Date of Patent: March 2, 2021Assignee: Tobii ABInventors: Robin Thunström, Tobias Höglund
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Publication number: 20200192474Abstract: Disclosed is a method for calibrating an eye-tracking device to suit a user of the eye-tracking device, wherein a calibration setting of the eye-tracking device—associated with a user is calculated based on acquired eye data of the user when looking at a set of reference points. The method comprises displaying a reference point of the set to the user; acquiring, by means of at least one camera of the eye-tracking device, eye data for at least one of the eyes of the user when looking at the reference point; comparing the acquired eye data to stored eye data sets related to the reference point, wherein each of the stored eye data sets is associated with a calibration setting of the eye-tracking device; and if the acquired eye data matches one of the stored eye data sets, abandoning the calibration process and loading the calibration setting associated with the matching stored eye data.Type: ApplicationFiled: November 12, 2019Publication date: June 18, 2020Applicant: Tobii ABInventors: Robin Thunström, Tobias Höglund
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Patent number: 8077995Abstract: Systems and methods provide infrared camera techniques that may improve image quality or infrared camera performance over a range of varying conditions. For example, in accordance with an embodiment of the present invention, a system is disclosed that transforms data provided by an infrared camera based upon environmental conditions at the time the data was obtained. As an example, the image quality provided by the infrared camera may be improved over a range of environmental conditions by the proper transformation of the data based upon the data and/or sensor information.Type: GrantFiled: February 22, 2008Date of Patent: December 13, 2011Assignees: FLIR Systems, Inc., Autoliv Development ABInventors: Bill Terre, Joseph Kostrzewa, Jan-Erik Källhammer, Tobias Höglund
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Patent number: 8045011Abstract: An imaging apparatus including an infrared video camera. The infrared video camera includes a sensor array operable to produce successive video images in the form of pixelated two-dimensional images. The imaging apparatus further comprises a processing arrangement operable to reduce or increase the overall brightness of an image in dependence upon the overall brightness of the pre-enhanced image and the overall brightness of the preceding enhanced image, so that the change in the overall brightness (DC-level) between the enhanced image and the preceding enhanced image is decreased.Type: GrantFiled: May 2, 2008Date of Patent: October 25, 2011Assignee: Autoliv Development ABInventors: Tobias Höglund, Ognjan Hedberg, Peter Hall
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Patent number: 7995107Abstract: A method of obtaining a spatial low pass filtered images from the video output of a video camera operable to produce successive video frames in the form of pixelated 2D sensed images. Each of the sensed images has a first predetermined number of rows of pixels and a second predetermined number of columns of pixels. The method may include scanning the sensor array row by row, and deriving the value of each pixel of said low spatial frequency image in such a way that said low spatial frequency value of a pixel is dependent on at least all earlier scanned pixels of the current row and all earlier scanned rows, but is not dependent on the pixels of rows located below a pixel row which is a third predetermined number of rows below the current row, said third predetermined number being significantly less than said first predetermined number.Type: GrantFiled: May 2, 2008Date of Patent: August 9, 2011Assignee: Autoliv Development ABInventor: Tobias Höglund
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Patent number: 7796168Abstract: Methods and systems for mitigating undesirable video flash in infrared camera systems are disclosed. A frame of video can be stored in a buffer and information related to the frame of video can be processed prior to displaying the video such that the processed information facilitates display of the video substantially without flashing. A display of a non-flashed frame can be frozen while a flash event would otherwise cause a flashed frame to be displayed. The shift in a histogram caused by a flash event or some portion thereof can be subtracted from pixels of an image. Thus, image quality can be substantially enhanced.Type: GrantFiled: June 9, 2006Date of Patent: September 14, 2010Assignees: Flir Systems, Inc., Autoliv Development ABInventors: Joseph Kostrzewa, Peter Hall, Ognjan Hedberg, Tobias Höglund, Leonard S. Araki, Douglas R. Kraemer
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Publication number: 20100073498Abstract: A method of obtaining a spatial low pass filtered images from the video output of a video camera operable to produce successive video frames in the form of pixelated 2D sensed images. Each of the sensed images has a first predetermined number of rows of pixels and a second predetermined number of columns of pixels. The method may include scanning the sensor array row by row, and deriving the value of each pixel of said low spatial frequency image in such a way that said low spatial frequency value of a pixel is dependent on at least all earlier scanned pixels of the current row and all earlier scanned rows, but is not dependent on the pixels of rows located below a pixel row which is a third predetermined number of rows below the current row, said third predetermined number being significantly less than said first predetermined number.Type: ApplicationFiled: May 2, 2008Publication date: March 25, 2010Inventor: Tobias Hoglund
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Publication number: 20080204571Abstract: An imaging apparatus including an infrared video camera. The infrared video camera includes a sensor array operable to produce successive video images in the form of pixelated two-dimensional images. The imaging apparatus further comprises a processing arrangement operable to reduce or increase the overall brightness of an image in dependence upon the overall brightness of the pre-enhanced image and the overall brightness of the preceding enhanced image, so that the change in the overall brightness (DC-level) between the enhanced image and the preceding enhanced image is decreased.Type: ApplicationFiled: May 2, 2008Publication date: August 28, 2008Inventors: Tobias Hoglund, Ognjan Hedberg, Peter Hall
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Patent number: 7340162Abstract: Systems and methods provide infrared camera techniques that may improve image quality or infrared camera performance over a range of varying conditions. For example, in accordance with an embodiment of the present invention, a system is disclosed that transforms data provided by an infrared camera based upon environmental conditions at the time the data was obtained. As an example, the image quality provided by the infrared camera may be improved over a range of environmental conditions by the proper transformation of the data based upon the sensor's information.Type: GrantFiled: February 23, 2005Date of Patent: March 4, 2008Assignees: Flir Systems, Inc., Autoliv Development ABInventors: Bill Terre, Joseph Kostrzewa, Jan-Erik Källhammer, Tobias Höglund
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Publication number: 20060188246Abstract: Systems and methods provide infrared camera techniques that may improve image quality or infrared camera performance over a range of varying conditions. For example, in accordance with an embodiment of the present invention, a system is disclosed that transforms data provided by an infrared camera based upon environmental conditions at the time the data was obtained. As an example, the image quality provided by the infrared camera may be improved over a range of environmental conditions by the proper transformation of the data based upon the sensor's information.Type: ApplicationFiled: February 23, 2005Publication date: August 24, 2006Inventors: Bill Terre, Joseph Kostrzewa, Jan-Erik Kallhammer, Tobias Hoglund