Patents by Inventor Dmitry Nikolaevich Znamenskiy

Dmitry Nikolaevich Znamenskiy 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: 9606450
    Abstract: An image projection apparatus comprises a light projector (605) which projects an image onto a surface (603) of an object. A focussing processor (609) is arranged to focus the image on an image plane (607) and a controller (611) dynamically varies the position of the image plane (607) relative to the surface (603). The movement may be a predetermined periodic movement and the surface may specifically be a non-planar surface. The movement may result in a blurring effect independent of distance, and may specifically provide a blurring effect that can be pre-compensated by pre-filtering of the image to be projected. The invention may allow improved quality of a projected image, such as e.g. of an image projected on a non-planar or moving surface.
    Type: Grant
    Filed: January 3, 2011
    Date of Patent: March 28, 2017
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventor: Dmitry Nikolaevich Znamenskiy
  • Patent number: 9147362
    Abstract: A method of dynamic of gamut control is provided for a display having a multi-spectral (typically multi-color) backlight, and sub-pixels corresponding to the different backlight spectra and at least one common sub-pixel. The display may f be an RGBW display having an RGB backlight. The method includes iteratively calculating the minimum required backlight intensities that will allow all (selected) color points of an image to be represented by the display. The determination for a light source of the backlight is based on determinations of intensities determined for other light sources in a previous iteration.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: September 29, 2015
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Dmitry Nikolaevich Znamenskiy, Oleg Belik, Karel Johannes Gerhardus Hinnen
  • Patent number: 9131221
    Abstract: A camera and camera system is provided with an optical device (8). The optical device creates simultaneously two or more images of object on a sensor (4) forming a compound image. The distance d between the constituting images of objects in the compound image is dependent on the distance Z to the camera. The compound image is analyzed (9), e.g. deconvolved to determine the distances d between the double images. These distances are then converted into a depth map (10).
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: September 8, 2015
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Ruud Vlutters, Frederik Jan De Bruijn, Dmitry Nikolaevich Znamenskiy
  • Patent number: 8842742
    Abstract: A method of generating presentation time stamps, PTSs, for motion-compensated frame-rate conversion of a sequence of frames. In one aspect, the method comprises for each new frame: determining an average difference between the capture time-stamps of recent consecutive new frames; and generating the PTS based on the capture time-stamp of a previous new frame and the average difference. In another aspect, the method comprises detecting a first cadence and a second different cadence in the sequence of frames; and generating a PTS for each new frame defined by the first cadence, such that in each case the difference between the PTSs of consecutive new frames is intermediate between the true interval between those frames according to the first cadence and the true interval between them according to the second cadence.
    Type: Grant
    Filed: July 16, 2010
    Date of Patent: September 23, 2014
    Assignee: Entropic Communications, Inc.
    Inventors: Claus Nico Cordes, Dmitry Nikolaevich Znamenskiy
  • Patent number: 8605202
    Abstract: A camera and system comprising a camera in which, during exposure, the ratio of the distance between the lens and the sensor and the focal length is changed. The rate of change is set such that motion invariant imaging is achievable for practical speed ranges, i.e. speed of up to at least 5 km/hour at 2 meter distance of the lens, by deconvoluting the compound image. Preferably the achievable speed range is at least twice as high. A linear motion of the sensor is preferred.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: December 10, 2013
    Assignee: Koninklijke Philips N.V.
    Inventors: Remco Theodorus Johannes Muijs, Dmitry Nikolaevich Znamenskiy, Harold Agnes Wilhelmus Schmeitz, Ruud Vlutters, Franciscus Hendrikus Van Heesch
  • Patent number: 8390643
    Abstract: A method of dynamic gamut control is disclosed. In accordance with a first aspect of the invention, control of the intensities of a set of color primaries illuminating associated sub-pixels of a display device is disclosed. Thus, the intensities of the light sources are controlled to control the intensities of the color primaries after the color filters. The method searches for a minimal intensity value of one color primary, which is adjusted to obtain together with the other color primaries of the set of color primaries an adjusted color gamut still containing all the colors of the set of colors.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: March 5, 2013
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Oleg Belik, Dmitry Nikolaevich Znamenskiy
  • Publication number: 20120242911
    Abstract: An image projection apparatus comprises a light projector (605) which projects an image onto a surface (603) of an object. A focussing processor (609) is arranged to focus the image on an image plane (607) and a controller (611) dynamically varies the position of the image plane (607) relative to the surface (603). The movement may be a predetermined periodic movement and the surface may specifically be a non-planar surface. The movement may result in a blurring effect independent of distance, and may specifically provide a blurring effect that can be pre-compensated by pre-filtering of the image to be projected. The invention may allow improved quality of a projected image, such as e.g. of an image projected on a non-planar or moving surface.
    Type: Application
    Filed: January 3, 2011
    Publication date: September 27, 2012
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventor: Dmitry Nikolaevich Znamenskiy
  • Publication number: 20120194578
    Abstract: A method of dynamic gamut control is provided for a display having a multi-spectral (typically multi-color) backlight, and sub-pixels corresponding to the different backlight spectra and at least one common sub-pixel. The display may for example be an RGBW display having an RGB backlight. The method comprises iteratively calculating the minimum required backlight intensities that will allow all (selected) color points of an image to be represented by the display. The determination for a light source of the backlight is based on determinations of intensities determined for other light sources in a previous iteration. In some embodiments, the approach allows for a clipping of a number of the color points. The invention may reduce power consumption while maintaining a high image quality and can be implemented computationally very efficiently.
    Type: Application
    Filed: October 8, 2010
    Publication date: August 2, 2012
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Dmitry Nikolaevich Znamenskiy, Oleg Belik, Karel Gerhardus Hinnen
  • Publication number: 20120162375
    Abstract: A camera and camera system is provided with an optical device (8). The optical device creates simultaneously two or more images of object on a sensor (4) forming a compound image. The distance d between the constituting images of objects in the compound image is dependent on the distance Z to the camera. The compound image is analysed (9), e.g. deconvolved to determine the distances d between the double images. These distances are then converted into a depth map (10).
    Type: Application
    Filed: June 21, 2010
    Publication date: June 28, 2012
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Ruud Vlutters, Frederik Jan De Bruijn, Dmitry Nikolaevich Znamenskiy
  • Publication number: 20120062787
    Abstract: A camera and system comprising a camera in which, during exposure, the ratio of the distance between the lens and the sensor and the focal length is changed. The rate of change is set such that motion invariant imaging is achievable for practical speed ranges, i.e. speed of up to at least 5 km/hour at 2 meter distance of the lens, by deconvoluting the compound image. Preferably the achievable speed range is at least twice as high. A linear motion of the sensor is preferred.
    Type: Application
    Filed: April 28, 2010
    Publication date: March 15, 2012
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Remco Theodorus Johannes Muijs, Dmitry Nikolaevich Znamenskiy, Harald Agnes Wilhelmus Schmeitz, Ruud Vlutters, Franciscus Hendrikus Van Heesch
  • Publication number: 20110019083
    Abstract: A method of generating presentation time stamps, PTSs, for motion-compensated frame-rate conversion of a sequence of frames. In one aspect, the method comprises for each new frame: determining an average difference between the capture time-stamps of recent consecutive new frames; and generating the PTS based on the capture time-stamp of a previous new frame and the average difference. In another aspect, the method comprises detecting a first cadence and a second different cadence in the sequence of frames; and generating a PTS for each new frame defined by the first cadence, such that in each case the difference between the PTSs of consecutive new frames is intermediate between the true interval between those frames according to the first cadence and the true interval between them according to the second cadence.
    Type: Application
    Filed: July 16, 2010
    Publication date: January 27, 2011
    Inventors: Claus Nico Cordes, Dmitry Nikolaevich Znamenskiy
  • Publication number: 20100020109
    Abstract: A method of dynamic gamut control comprises the step of controlling (LD) intensities of at least a subset (PR, PG, PB) of a set of color primaries (PR, PG, PB, PW) associated with corresponding sub-pixels (RP, GP, BP, WP) of a display device.
    Type: Application
    Filed: September 14, 2007
    Publication date: January 28, 2010
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Oleg Belik, Dmitry Nikolaevich Znamenskiy