Koninklijke Philips Corporation N.v.

U.S. Philips Corporation

Trident Microsystems (far East) Ltd.

Tp Vision Holding B.v.

Other

Nxp B.v.

Entropic Communications, Inc.

Technische Universiteit Eindhoven

Gerard De Haan

Mark Jozef Willem Mertens

Ihor Olehovych Kirenko

Olukayode Anthony Ojo

Chris Damkat

Paul W Biezen

Philip Steven Newton

Hendrik Huijgen

Martin Hammer

Remco Muijs

Adriaan Johan Van Leest

Michiel Adriaanszoon Klompenhouwer

Vincent Jeanne

Erwin Ben Bellers

Willem Verkruijsse

Anna Pelagotti

Tatiana G Kwaaitaal-Spassova

Robert J Schutten

Wenjin Wang

Albertus Cornelis Den Brinker

Leo Jan Velthoven

Robert Jan Schutten

Rimmert Bart Wittebrood

Erwin B Bellers

David Antoine Christian Marie Roovers

Mukul Julius Rocque

Cornelus Hendricus Bertus Arnoldus Van Dinther

Rogier Lodder

Mark Josephus Henricus Van Gastel

Moco Andreia

Wenjing Wang

Murtaza Bulut

Caifeng Shan

Pieter Jacob Snijder

Jeroen Hubert Christoffel Jacobus Stessen

Sing L Tan

Laurentia Johanna Huijbregts

Leendert J Van De Polder

Franciscus W Vreeswijk

Alexander Dubielczyk

Marek Janusz Bartula

Jozef Hubertus Gelissen

Michel Jozef Agnes Asselman

Gerrit Maria Kersten

Marcus Schwenk

Fransiscus Wilhelmus Sijstermans

Jeroen Maria Kettenis

Cornelis Harm Taal

Perry Gerard Mevissen

Andreas Wolfgang Schlack

Philippe A Van Overmeire

Jingqi Hou

Gerrit F De Poortere

Johannes P Tielemans

Tatiana G Kwaaitaal-Spaasova

Dipti Kapadia

Pierluigi Lo Muzio

Calina Ciuhu-Pijlman

Anjo Peeters

Hao Hu

Paul Michiel Hofman

Paul Wilhelm Albert Cornelis Biezen

Calina Ciuhu

Johannes Nicolaas Bakker

Johannes Henricus Jozef Maria Van Rooy

Tatiana Georgieva Kwaaitaalspassova

Paul W A C Bienzen

Paul W A C Biezen

Cris Damkat

To allow better quality rendering of video on any display, a method is proposed of encoding, in addition to video data (VID), additional data (DD) comprising at least one change time instant (TMA_) indicating a change in time of a characteristic luminance (CHRLUM) of the video data, which characteristic luminance summarizes the set of luminances of pixels in an image of the video data, the method comprising:

Apparatuses and methods for improved encoding of images for better handling by displays

The present invention relates to a system and method for determining a vital sign of a subject. To improve the detection of electromagnetic radiation reflected from or transmitted through skin of a subject () at least two differently modulated radiation sources () are used. For both camera and single-element sensors, this allows access (after demodulation) to different mixtures of skin and non-skin reflections/transmissions that can be de-mixed and successively allows the skin-only signal to be used for photo-plethysmography, PPG, extraction. Thus, a sensor () detects the reflected or transmitted electromagnetic radiation and a demodulation unit () and processing unit () enable to determine a vital sign () from said detection signal.

System and method for determining at least one vital sign of a subject

The present invention relates to a device, system and a method for generating a photoplethysmographic image carrying vital sign information of a subject. To provide an increased validity and robustness against motion, in particular against ballistocardiographic motion, the proposed device comprises an input interface () for obtaining image data of a skin region of a subject in at least two different wavelength channels, said image data comprising two or more image frames acquired by detecting light transmitted through or reflected from the skin region over time, wherein said image data comprise wavelength-dependent reflection or transmission information in said at least two different wavelength channels, a combination unit () for combining, per pixel or group of pixels and per time instant, image data values of said at least two different wavelength channels to obtain a time-variant pulse signal per pixel or group of pixels, and an image generation unit () for generating a photoplethysmographic image from a property of the respective pulse signals in a time window including at least two image frames.

Device, system and method for generating a photoplethysmographic image carrying vital sign information of a subject

A method is proposed of encoding a change time The change time indicates a change in time of a characteristic luminance of the video data. The characteristic luminance summarizes the set of luminances of pixels the video data. The encoding of the time variation of the characteristic luminance provides a more compact and accurate storage and transmission of content.

The present invention relates to a device, system and method for pulsatility detection. The proposed device comprises an input interface () for obtaining image data of a scene, said image data comprising a time sequence of image frames, an extraction unit () for extracting a time-varying signal indicative of a periodic physiological phenomenon from a region of interest of said image data, a transformation unit () for transforming said time-varying signal into a spectral signal, a partitioning unit () for partitioning the spectral signal into at least an in-band sub-signal covering a first frequency range of said spectral signal and an out-band sub-signal covering a second frequency range of said spectral signal, wherein said first frequency range comprises at least a frequency range of the periodic physiological phenomenon, an analysis unit () for separately deriving an in-band measure from the in-band sub-signal and an out-band measure from the out-band sub-signal, the in-band measure and the out-band measure representing a descriptor, and a classifier () for classifying said region of interest as a pulsatile region of a living being or as a non-pulsatile region based on the descriptor.

Device, system and method for pulsatility detection

The present invention relates to a method and a device for enabling to analyze a property of a vital sign detector (). The proposed method comprises the steps of providing a virtual phantom () of a living being, rendering an artificial vital sign on the displayed virtual phantom (), and outputting the virtual phantom () with the rendered artificial vital sign to the vital sign detector ().

Method, device and system for enabling to analyze a property of a vital sign detector

The present invention relates to a device and method for processing physiological signals of a subject and in particular to a system for monitoring a (vascular) health parameter of a subject including such a device. The proposed device () comprises an input interface () for obtaining image data of a scene, said image data comprising a time sequence of image frames; an extraction unit () for extracting time-varying signals () indicative of cardiac-synchronous motion from said image data, wherein said time-varying signals () are motion signals indicative of a vascular micro-motion indicative of a vascular displacement waveform; a polarity determination () unit for determining a polarity of the time-varying signals, wherein the polarity corresponds to a phase of the time-varying signals; a combination unit () for combining time-varying depending on their polarity to obtain a combination signal; and an analysis unit () for determining a (vascular) health parameter based on the combination signal.

Device, system and method for measuring and processing physiological signals of a subject

The present disclosure relates to devices, systems and methods for extracting physiological information indicative of at least one vital sign of a subject. An embodiment of a device comprises a pre-treatment unit configured to derive at least three detection signals from electromagnetic radiation reflected from a skin region of a subject, wherein at least two detection signals comprise wavelength-dependent reflection information in a different wavelength channel and at least two detection signals comprise reflection information in different polarization channels having different polarization directions.

Device, system and method for extracting physiological information indicative of at least one vital sign of a subject

The present invention relates to a device, system and method for less obtrusively determining a tissue characteristic of a subject, the device comprises a first control unit () configured to control an electromechanical transducer () by a first control signal () to transfer mechanical waves varying in a frequency range or with varying frequency content to an exposed tissue area of the subject; a second control unit () configured to control an electromagnetic radiation emitter () by a second control signal () to emit electromagnetic radiation towards the exposed tissue area of the subject; a radiation signal input () configured to obtain a radiation signal () indicative of electromagnetic radiation reflected from the exposed tissue area of the subject; and a processor () configured to determine a tissue characteristic signal () indicative of a tissue characteristic of the exposed tissue area of the subject derived from a frequency response or a frequency transfer function obtained from the obtained radiation signal in said frequency range or for said varying frequency content.

Device, system and method for determining a tissue characteristic of a subject

The present invention relates to a system and method of skin detection of a human subject using a textile product. The textile product () is made from or comprising textile including near-infrared, NIR, absorbing pigments. It supports and/or partially covers the human subject while skin detection and/or detection/monitoring vital signs of the human subject is carried out. A increased contrast between the textile product and skin in the NIR wavelength range is thus achieved.

System and method for skin detection of a human subject

The invention provides a physiological parameter sensing system () and method in which physiological information indicative of at least one physiological parameter is derived. The approach of the invention is based on constructing multiple pulse signals from different weighted combinations of at least two detection signals, derived from detected electromagnetic radiation directed onto or through a subjects skin region. The weightings are based on different of a set of various blood volume pulse vectors. A quality indication value is derived for each generated pulse signal, where this is based on a derived relationship between an obtained heart rate signal for the patient and the pulse signal. The blood volume pulse vector resulting in the pulse signal having the highest quality indicator value and/or from the derived pulse signal itself is used to derive the physiological parameter information.

System and method for sensing physiological parameters

This invention provides a process which allows better quality rendering of video on any display. The process proposes encoding, video data and additional data. The additional data includes a change time instant. The change time instant can be used to indicate a change in time of a characteristic luminance. The characteristic luminance summarizes the set of luminances of pixels in an image of the video data. The process includes generating on descriptive data based on the video data and encoding and outputting the descriptive data as additional data.

A data processing device () is disclosed for extracting a desired vital signal containing a physiological information component from sensor data that includes time-dependent first sensor data (PPG) comprising the physiological information component and at least one motion artifact component, and that includes time-dependent second sensor data that is indicative of a position, a velocity or an acceleration of the sensed region as a function of time. A decomposition unit () decomposes the second sensor data into at least two components of decomposed sensor data and, based on the decomposed second sensor data, provides at least two different sets of motion reference data in at least two different motion reference data channels. An artifact removal unit () determines the vital signal formed from a linear combination of the first sensor data and the motion reference data of at least one two of the motion reference data channels.

Motion artifact reduction using multi-channel PPG signals

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Helmond, Netherlands

Gerard De Haan