Patents by Inventor Marinus Bastiaan Van Leeuwen

Marinus Bastiaan Van Leeuwen 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: 9990723
    Abstract: An apparatus (MDS) and related method for image processing. The apparatus includes a multi-modal matcher (M). The matcher (M) operates to match a first reference (RF1) image against a stream (LF) of image frames (F1, F2). Once a match is found, the current reference image (RF1) is exchanged for a matching frame from the stream. The matcher (M) then attempts matching against subsequent frames in the stream by now using said matched frame as a new reference image. Once a further frame (Fm) is found that matches said new reference image, said further frame (Fm) is output as a best match.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: June 5, 2018
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Marinus Bastiaan Van Leeuwen, Jelte Peter Vink
  • Patent number: 9972068
    Abstract: The present invention relates to a method for registering and visualizing at least two images, the method comprising the steps of: measuring (S1) a navigation speed used by a user during a scrollable and/or zoomable visualization of a first image of the at least two images and comparing the navigation speed with a navigation speed threshold value; visualizing (S2) the first image by solving deformations of the first image using a first level of computational load, if the navigation speed is below the navigation speed threshold value; and visualizing (S3) the first image by solving deformations of the first image using a second level of computational load, if the navigation speed is above the navigation speed threshold value.
    Type: Grant
    Filed: January 29, 2015
    Date of Patent: May 15, 2018
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Marinus Bastiaan van Leeuwen, Jelte Peter Vink
  • Patent number: 9928607
    Abstract: The present invention relates to a device for obtaining a vital sign of a subject, comprising an interface (20) for receiving a set of image frames of a subject, a motion analysis unit (30) for analyzing at least one measurement area within the image frames of the set of image frames and for characterizing motion of the subject within the set of image frames, a signal extraction unit (40) for extracting photoplethysmographic, PPG, signals from the set of image frames using the characterization of motion of the subject within the set of image frames, and a vital signs determination unit (50) for determining vital sign information from the extracted PPG signals. The motion analysis unit comprises a motion estimation unit (32), a spatial characteristic extraction unit (34), and a motion characterization unit (36).
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: March 27, 2018
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Vincent Jeanne, Marinus Bastiaan Van Leeuwen, Michel Jozef Agnes Asselman
  • Patent number: 9916515
    Abstract: A system for processing an image comprises a region detector (1). The region detector comprises an artifact detector (7) for detecting a region comprising an artifact in the image. The system comprises a parameter determining unit (2) for determining a parameter, based on a portion of the image excluding the detected region. The system comprises an image processing module (3) for processing the image, using the derived parameter. The system comprises a display unit (5) for displaying the processed image with an indication of the detected region. The parameter determined by the parameter determining unit (2) can comprise a normalization parameter, and the image processing module (3) can be arranged for performing a normalization of the image according to the normalization parameter.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: March 13, 2018
    Assignee: Koninklijke Philips N.V.
    Inventors: Jelte Peter Vink, Marinus Bastiaan Van Leeuwen
  • Patent number: 9672629
    Abstract: A fluorescence image processing apparatus for enhancing a fluorescence image includes an image segmentation unit, a background determination unit a background reduction unit, and an image enhancement unit. The background and the area of interest of a glass slide are first segmented and then this segmentation is used to enhance the contrast between both areas.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: June 6, 2017
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Jelte Peter Vink, Marinus Bastiaan Van Leeuwen
  • Publication number: 20170116734
    Abstract: The present invention relates to an examining device (1) for processing and analyzing an image of a bio sample, an examining method for processing and analyzing an image of a bio sample, a computer program element for controlling such device (1), and a corresponding computer readable medium. The examining device (1) for processing and analyzing an image of a bio sample comprises an interface unit, an image analyzing unit, and a display unit. The interface unit is configured to provide an image of a bio sample. The image analyzing unit is configured to indicate a region of interest in the image as reference region, to extract a characteristic of the reference region from the image and to analyze the image for alternative regions with a similar characteristic. The display unit is configured to display the result of the analysis for alternative regions with a similar characteristic.
    Type: Application
    Filed: March 31, 2015
    Publication date: April 27, 2017
    Applicant: Koninklijke Philips N.V.
    Inventors: MARINUS BASTIAAN VAN LEEUWEN, JELTE PETER VINK
  • Publication number: 20170011489
    Abstract: The present invention relates to a method for registering and visualizing at least two images, the method comprising the steps of: measuring (S1) a navigation speed used by a user during a scrollable and/or zoomable visualization of a first image of the at least two images and comparing the navigation speed with a navigation speed threshold value; visualizing (S2) the first image by solving deformations of the first image using a first level of computational load, if the navigation speed is below the navigation speed threshold value; and visualizing (S3) the first image by solving deformations of the first image using a second level of computational load, if the navigation speed is above the navigation speed threshold value.
    Type: Application
    Filed: January 29, 2015
    Publication date: January 12, 2017
    Inventors: MARINUS BASTIAAN VAN LEEUWEN, JELTE PETER VINK
  • Publication number: 20160314594
    Abstract: The present invention relates to a fluorescence image processing apparatus (100) for enhancing a fluorescence image. The fluorescence image processing apparatus (100) comprises an image segmentation unit (110), a background determination unit (120), a background reduction unit (130), and an image enhancement unit (140). It is porposed to first segment the background and the area of interest of a glass slide and to use this segmentation to enhance the contrast between both. By that, scanning and staining time can be reduced, while after enhancement the image data has still a comfortable contrast for the human operator.
    Type: Application
    Filed: November 28, 2014
    Publication date: October 27, 2016
    Inventors: JELTE PETER VINK, MARINUS BASTIAAN VAN LEEUWEN
  • Publication number: 20160267656
    Abstract: An apparatus (MDS) and related method for image processing. The apparatus includes a multi-modal matcher (M). The matcher (M) operates to match a first reference (RF1) image against a stream (LF) of image frames (F1, F2). Once a match is found, the current reference image (RF1) is exchanged for a matching frame from the stream. The matcher (M) then attempts matching against subsequent frames in the stream by now using said matched frame as a new reference image. Once a further frame (Fm) is found that matches said new reference image, said further frame (Fm) is output as a best match.
    Type: Application
    Filed: September 30, 2014
    Publication date: September 15, 2016
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: MARINUS BASTIAAN VAN LEEUWEN, JELTE PETER VINK
  • Publication number: 20160253820
    Abstract: The present invention relates to a device for obtaining a vital sign of a subject, comprising an interface (20) for receiving a set of image frames of a subject, a motion analysis unit (30) for analysing at least one measurement area within the image frames of said set of image frames and for characterizing motion of the subject within said set of image frames, a signal extraction unit (40) for extracting photoplethysmographic, PPG, signals from said set of image frames using said characterization of motion of the subject within said set of image frames, and a vital signs determination unit (50) for determining vital sign information from said extracted PPG signals. The motion analysis unit comprises a motion estimation unit (32), a spatial characteristic extraction unit (34), and a motion characterization unit (36).
    Type: Application
    Filed: October 15, 2014
    Publication date: September 1, 2016
    Inventors: Vincent JEANNE, Marinus Bastiaan VAN LEEUWEN, Michel Jozef Agnes ASSELMAN
  • Publication number: 20160232670
    Abstract: A method for registration of images of tissue slices comprises: receiving a first image (18a) of a first tissue slice (14a) and a second image (18b) of a second tissue slice (14b), both tissue slices being prepared from the same tissue block (10); determining an unreliable area (27) in the first image (14a) showing folded tissue (15); and registering the first image (14a) and the second image by registering an area of the first image and the second image outside of the unreliable area.
    Type: Application
    Filed: October 30, 2014
    Publication date: August 11, 2016
    Inventors: JELTE PETER VINK, MARINUS BASTIAAN VAN LEEUWEN
  • Patent number: 9373168
    Abstract: An intelligent autofocus method and device for a digital pathology image, method are device are able to couple a feedback from the behavior of the user, for example by gaze tracking arrangement, to the actually focal representation of an image and adjust the imaging setup accordingly with regard to the focal plane. The adjustment is performed in such a way that the focal plane is selected which optimizes and sharpens the actual object of interest which was previously determined.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: June 21, 2016
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Marinus Bastiaan Van Leeuwen, Jelte Peter Vink
  • Patent number: 9107569
    Abstract: The invention provides for a medical instrument for examining the cervix comprising an optical examination system, a processor for controlling the medical instrument, and a memory containing machine executable instructions. Execution of the instructions causes the processor to: acquire a cervical image using the optical examination system; calculate a set of interest point locations using a digital filter; calculate a filtered set of interest point locations using the set of interest point locations and a morphological filter; calculate a reduced set of interest points locations using the filtered set of interest point locations and a neighborhood based filter; calculate a classified set of interest point locations reduced set of interest points and a trained classification module; calculate a set of punctation locations using the classified set of interest point locations and a second neighborhood based filter; and calculate punctation mark regions using the punctation point locations.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: August 18, 2015
    Assignee: Koninklijke Philips N.V.
    Inventors: Vipin Gupta, Caifeng Shan, Pallavi Vajinepalli, Payal Keswarpu, Marinus Bastiaan Van Leeuwen, Celine Firtion, Shankar Mosur Venkatesan, Jelte Peter Vink
  • Publication number: 20140334711
    Abstract: A system for processing an image comprises a region detector (1). The region detector comprises an artifact detector (7) for detecting a region comprising an artifact in the image. The system comprises a parameter determining unit (2) for determining a parameter, based on a portion of the image excluding the detected region. The system comprises an image processing module (3) for processing the image, using the derived parameter. The system comprises a display unit (5) for displaying the processed image with an indication of the detected region. The parameter determined by the parameter determining unit (2) can comprise a normalization parameter, and the image processing module (3) can be arranged for performing a normalization of the image according to the normalization parameter.
    Type: Application
    Filed: November 7, 2012
    Publication date: November 13, 2014
    Inventors: Jelte Peter Vink, Marinus Bastiaan Van Leeuwen
  • Publication number: 20140169655
    Abstract: The present invention provides for an intelligent autofocus method and device for a digital pathology image, method are device are able to couple a feedback from the behaviour of the user, for example by gaze tracking arrangement, to the actually focal representation of an image and adjust the imaging setup accordingly with regard to the focal plane. The adjustment is performed in such a way that the focal plane is selected which optimizes and sharpens the actual object of interest which was previously determined.
    Type: Application
    Filed: June 28, 2012
    Publication date: June 19, 2014
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: Marinus Bastiaan Van Leeuwen, Jelta Peter Vink
  • Publication number: 20140005477
    Abstract: The invention provides for a medical instrument for examining the cervix comprising an optical examination system, a processor for controlling the medical instrument, and a memory containing machine executable instructions. Execution of the instructions causes the processor to: acquire a cervical image using the optical examination system; calculate a set of interest point locations using a digital filter; calculate a filtered set of interest point locations using the set of interest point locations and a morphological filter; calculate a reduced set of interest points locations using the filtered set of interest point locations and a neighborhood based filter; calculate a classified set of interest point locations reduced set of interest points and a trained classification module; calculate a set of punctation locations using the classified set of interest point locations and a second neighborhood based filter; and calculate punctation mark regions using the punctation point locations.
    Type: Application
    Filed: March 12, 2012
    Publication date: January 2, 2014
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: Vipin Gupta, Caifeng Shan, Pallavi Vajinepalli, Payal Keswarpu, Marinus Bastiaan Van Leeuwen, Celine Firtion, Shankar Mosur Venkatesan, Jelte Peter Vink