Koninklijke Philips Corporation N.v.

Tp Vision Holding B.v.

Leo Jan Velthoven

Michiel Adriaanszoon Klompenhouwer

Karl Catharina Van Bree

Gerard De Haan

Gerben Johan Hekstra

Mauro Barbieri

Frederik Jan De Bruijn

Henning Maass

Xavier Louis Marie Antoine Aubert

Guido Josef Müsch

Folke Charlotte Noertemann

Hugo Johan Cornelissen

Dirk Jan Broer

Mark Jozef Willem Mertens

Martin Jacobus Johan Jak

Vincentius Paulus Buil

Dirk Kornelis Gerhardus De Boer

Daniel Willem Elisabeth Schobben

Remco Theodorus Johannes Muijs

Erno Hermanus Antonius Langendijk

Bart Gerard Bernard Barenbrug

Calina Ciuhu

Nathan Alan Gabriele

Enrique Antonio Gil Ponce

Mounir Zeitouny

Elsa Inger Stapel Møst

Elsa Inger Stapel Most

Guido Josef MüSCH

Elsa Inger Stapel MØST

Daniël Willem Elisabeth Schobben

An apparatus and method for tracking a head of a subject in a series of images includes receiving a series of images of at least a portion of a subject's head; tracking a position of the subject's head in the series of images based on positions of a first plurality of primary features of the subject's head; determining a first confidence level of the position of the subject's head based on the positions of the first plurality of primary features; monitoring a position of a secondary feature; and upon determining that the first confidence level is below a defined threshold, tracking the position of the subject's head based on the position of the secondary feature rather than the positions of the primary features.

Tracking a head of a subject

A skin treatment system including a treatment device to treat a treatment region of a body. The skin treatment system includes a camera to capture at least one image of skin, the image having an imaging region, and to provide captured image data representing the captured image. The imaging region has a predefined spatial relationship with the treatment region. The skin treatment system further includes a storage facility for storing reference image data indicative of a reference image of the skin. The skin treatment system further includes an orientation estimation facility to determine which part of the reference image corresponds to the at least one captured image, using the captured image data and the reference image data, and to derive from a predetermined orientation of said corresponding part with respect to the reference image, an orientation indication indicative of an orientation of the treatment device with respect to the body.

Skin treatment system

An adaptive lighting system (), a (virtual) mirror arrangement, a method of controlling light sources of an adaptive light sources, a method of controlling a virtual mirror and a computer program product are provided. The adaptive lighting system is for a mirror component that is configured to show a mirror image of the user at the mirror surface of the mirror component. The adaptive lighting system comprises a plurality of individually controllable light sources (), a sensor (), and a controller (). The sensor detects a relative orientation of the head of the user with respect to the mirror surface. The controller generates control signals () for the individually controllable light sources on the basis of the sensor signal. The controller generates the control signals to obtain a lower emission of light towards eyes of the user if the sensor signal indicates that the head is turned left sidewards, upwards, right sidewards and/or downwards.

Adaptive lighting system for a mirror component and a method of controlling an adaptive lighting system

A device, system and a method for determining a relational position of a mobile device includes equipping the mobile device with a light source to project a light image on a subject during use, while a camera equipped device is observing the subject. The camera is used to identify both landmarks on the subject's face and the light image allowing the position of the mobile device relative to the user to be calculated. The system may use the computing power in the camera equipped device for image analysis, and no advanced processing needs to be performed by the mobile device. Further, no communication between the mobile device and the camera equipped device is required to establish the relative position of the mobile or personal care device.

Device and method for determining a position of a mobile device in relation to a subject

The present disclosure pertains to a light sensing system configured to determine an amount of ambient light exposure experienced by a subject. The present invention wirelessly exchanges light information between different wearable devices of the same user and/or between devices of different users. Local and/or central light profile databases are built-up by the system and are shared between the devices so that light data that is typical for a location at a specific time of day and year can be used to estimate current ambient light levels for situations in which no measurement can be taken.

Light information sensing system and method for determining an amount of ambient light exposure experienced by a subject

The present invention relates to a light sensing system for sensing ambient light intensity, comprising a light sensing device with at least one light sensor and a calibration device for calibrating the sensor. The calibration device comprises at least one light source that emits light with a standard intensity. The invention is further related to a corresponding method for calibrating a light sensing device, comprising the illumination of the light sensor of the light sensing device with light that has a standard intensity, the comparison of the output intensity signal of the sensor with an expected signal that corresponds to the standard intensity, and the matching of the output intensity signal of the sensor to the expected signal by adjusting a gain parameter of the sensor.

Light sensing system, and method for calibrating a light sensing device

A device and method for rendering content that includes analyzing previous and/or subsequent temporal portions of a content signal to determine elements that are positionally related to elements of a current portion of the content signal. The current portion of the content signal is rendered on a primary rendering device, such as a television, while the elements that are positionally related to elements of a current portion of the content signal are concurrently rendered on a secondary rendering device. In one embodiment, the elements that are rendered on the secondary rendering device may be rendered at a lower resolution and/or lower frame rate than the rendered current portion of the content signal. In one embodiment, at least one of previous and subsequent temporal portions of a content signal may be analyzed at a lower resolution than the content signal.

Adaptive content rendering based on additional frames of content

An apparatus for enhancing at least a region of an input picture having input pixel values enabling a reduction of quantization banding artifacts including an estimation unit arranged to estimate a quantization precision of at least the region of the input picture, a pattern analysis unit arranged to determine positions in the input picture of changes in input pixel value of less than or equal to the quantization precision, and to output analysis information representing the positions, and an adaptive filter, arranged to calculate an output picture corresponding to at least the region of the input picture, comprising output pixels being determined on the basis of adaptive combinations of input pixels, and arranged to determine the adaptive combinations in dependence on the analysis information.

Picture enhancement by utilizing quantization precision of regions

This invention relates to a method, a computer program, a computer program product and a device for reducing motion blur of images shown on non-stroboscopic display devices, in which local areas p, of an image of a video signal are displayed during respective local display times t; that are less than or equal to a image period T, comprising determining () an amount X; of high spatial frequency content related to a local area p, of said image of said video signal, and adjusting () a local display time t, in dependence on said determined amount X; of high spatial frequency content, wherein said local display time t; is decreased with increasing determined amount X; of high spatial frequency content.

Display time control for images

This invention relates to a method, a computer program, a computer program product, and a device for reducing motion blur of images of a video signal shown on a hold-type display (), comprising estimating () motion vectors of moving components in said images of said video signal; band-pass filtering () said video signal with respect to a spatial frequency domain, wherein said band-pass filtering at least partially depends on said estimated motion vectors, and wherein with increasing length of said estimated motion vectors, the passband of said band-pass filtering adaptively shifts from high spatial frequencies to medium spatial frequencies; and combining () said video signal and said band-pass filtered video signal to produce an input video signal for said hold-type display.

Motion-compensated inverse filtering with band-pass filters for motion blur reduction

The invention relates to a method and a circuit arrangement to reduce motion blur of images shown in non-stroboscopic display devices, in particular Liquid Crystal Display Panels (LCDs). Thin Film Transistor Displays (TFTs), Color Sequential Displays. Plasma Display Panels (PDPs), Digital Micro Mirror Devices or Organic Light-Emitting Diode (OLED) displays, in which motion vectors depending on moving components in each image of an input video, signal are calculated, in which anti-motion blur filtering of the input video signal is performed based on the calculated motion vectors to produce an output video signal, and in which images are generated on said display device depending on said output video signal. In order to provide an improved spatial filtering with less noise enhancement and less noise modulation, it is proposed that edge characteristics in each image of the input video signal are determined and that anti-motion blur filtering is further based on said determined edge characteristics. In this way, spatial filtering is concentrated on significant parts of an image only, and both noise enhancement and noise modulation are reduced.

Edge dependent motion blur reduction

An image processing apparatus () comprises: receiving means for receiving a video signal representing input images; a film-detector unit () for detecting whether the input images have been captured by a film camera or by a video camera; and a sharpness enhancement unit () for calculating sharpness enhanced images on basis of the input images. The sharpness enhancement unit () is controlled by the film-detector unit (), whereby the sharpness enhancement is larger if the film-detector unit () has detected that the input images have been captured by the film camera than if the film-detector unit () has detected that the input images have been captured by the video camera.

Unit for and method of sharpness enhancement

The invention relates to a color display device for display a color image and a method of operating such display. The color display device is provided with a plurality of picture elements, two selectable light sources having different predetermined radiance spectra, color selection means which in combination with the selectable light sources is able to produce respective first and second primary colors on the display panel and control means arranged to select alternately one of the selectable light sources and to provide a portion of the picture elements with image information corresponding to the respective primary colors obtainable with the selected light source. The primary colors of the display device can be selected in a time sequential and space sequential way which enable a reduction of a color break-up.

Color display device

In a method, a display device and a computer program product that reduces motion blur, flicker and loss of brightness of images shown in non-stroboscopic display devices, such as Liquid Crystal, Plasma Panel, Thin Film Transistor, Liquid Crystal on Silicon, color Sequential, Organic Light Emitting Diode or Polymer Light Emitting Diodes displays, in which each image of an input video signal is displayed during a display time t, which is less than or equal to a picture period T, the motion and the characteristics of motion are measured and the display time tis continuously adjusted between 0 and T depending on this measured motion and the characteristics of motion. To further reduce flicker and loss of brightness encountered when reducing the display time, anti-motion blur filtering of the input video signal is performed, where the display time and the amount and sort of filtering is jointly controlled based on the measured motion and characteristics of motion.

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Eindhoven, Netherlands

Leo Jan Velthoven