EP1537518A1 - Dispositif de determination de l'age d'une personne par la mesure de la taille de ses pupilles - Google Patents

Dispositif de determination de l'age d'une personne par la mesure de la taille de ses pupilles

Info

Publication number
EP1537518A1
EP1537518A1 EP03720196A EP03720196A EP1537518A1 EP 1537518 A1 EP1537518 A1 EP 1537518A1 EP 03720196 A EP03720196 A EP 03720196A EP 03720196 A EP03720196 A EP 03720196A EP 1537518 A1 EP1537518 A1 EP 1537518A1
Authority
EP
European Patent Office
Prior art keywords
person
age
sensor
determining
pupil size
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP03720196A
Other languages
German (de)
English (en)
Inventor
Bernhard Mattes
Thomas Lich
Frank Mack
Markus Fislage
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1537518A1 publication Critical patent/EP1537518A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/113—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining or recording eye movement
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/18—Eye characteristics, e.g. of the iris
    • G06V40/19—Sensors therefor
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/16—Human faces, e.g. facial parts, sketches or expressions
    • G06V40/178—Human faces, e.g. facial parts, sketches or expressions estimating age from face image; using age information for improving recognition

Definitions

  • the invention is based on a device for recording physiological data of at least one person in a vehicle according to the preamble of the independent claim.
  • the device according to the invention for recording physiological data of at least one person with the features of the independent claim has the advantage that the device is configured such that it uses the physiological data to determine the age of the at least one person.
  • This enables, in particular, a situation-specific activation of restraint devices such as airbags and belt tensioners. Since the bones of a person become more fragile in old age, it is advantageous to inflate the airbag more weakly in the event of a crash when an older person is detected than in a younger person. Bone flexibility in those over 50 years old is only about 30% of the bone flexibility in 25 year olds. When the belt tensioners are triggered, older occupants can break their ribs and there is a risk of internal bleeding if the belt force limit is not switched on immediately.
  • the device according to the invention can also be used, for example, for age-dependent access releases or age-dependent dispensing of consumer goods.
  • the device according to the invention exhibits its greatest advantages, particularly when used in a vehicle.
  • the at least one sensor that is used to record the physiological data is designed as an image generator.
  • a video sensor is preferably used here, in particular a stereo video sensor, which, by means of triangulation, is able to determine the distance of the person from an airbag cover and in particular the pupil size.
  • the imaging device or video sensor is assigned an evaluation module that is configured to measure the pupil size. The age of the person concerned can be inferred from the pupil size in a simple manner. It is known that the pupil size changes in the
  • Age decreased. It can shrink to a third of its youthful size in old age.
  • stereo video sensor instead of the stereo video sensor, other methods are also conceivable that combine a video sensor with a distance measurement.
  • Other triangulation methods can be used for distance measurement, for example by structured illumination or transit time methods, for example LIDAR, imaging LIDAR, radar or ultrasound, or interferometry methods, i.e. distance measurement based on the phase shift of two laser beams due to their different light paths.
  • the device according to the invention can combine the imager with further sensors in order either to obtain other data for adapting the restraining means in a situation-adaptive manner or to correlate the pupil size with other physiological data in order to put the age determination on a better basis.
  • a classifier can also be trained to divide people into different age groups based on the image signal. The measured values alone can give a wrong impression about the age of the person, but in correlation, in particular with the pupil size, these parameters can make this age determination more reliable.
  • the pulse frequency which is determined by means of a pressure sensor, or electrical parameters such as the skin resistance or a capacity measurement for determining the water content in the body, can be used as further measured values.
  • the water content in the body also indicates a different age of a person, since the water content in older people drops to 60% of body weight compared to 90% in children.
  • the device according to the invention uses measured values from a weight measurement of the person in order to infer the age of the person concerned.
  • the weight measurement can be carried out with a seat mat or with force measuring bolts or other sensors for determining the mass.
  • FIG. 1 shows a block diagram of the device according to the invention
  • FIG. 2 shows a configuration of the device according to the invention in the vehicle.
  • the introduction of the front passenger airbag in particular has made it necessary to recognize a front passenger seat occupied by one person for safety and insurance reasons. In the event of an accident and an unoccupied passenger seat, no occupant is to be protected, and it would therefore mean unnecessarily high repair costs if the airbag were to open. Seat occupancy detection for recognizing a person is widespread. There are also some ideas for automatic child seat recognition.
  • the device for recording physiological data is now configured in such a way that an age determination of the occupant, that is to say of the person in the vehicle Vehicle.
  • the device according to the invention can also be used outside the vehicle. But inside the vehicle, the age determination in the event of an accident enables the restraint devices to be activated to suit the situation and the person.
  • the analysis of the size of a person's pupils by means of an imaging device, for example a video system, and the combination of this information with other, independent measurement values enables the age of a person to be determined. Especially since the size of the pupils decreases significantly in old age, this is a good parameter to recognize an older person.
  • the table below shows how the pupil cross-section decreases with increasing age.
  • Table 1 Diameter of the pupil of people of different ages.
  • This protection of older people is much more important than gender recognition, since, for example, women who are not pregnant can withstand higher accelerations and surface pressures than men of the same age and consequently need airbag protection only at higher impact speeds.
  • the distance between the occupant and the airbag cover and the size of the pupils of a person can be determined by triangulation.
  • the size of the pupils can be determined with a video camera in combination with an ultrasound distance sensor.
  • the Brightness of the vehicle can be estimated.
  • an age estimate can be made.
  • a temporal filtering increases the robustness of this age estimate against short-term fluctuations in brightness.
  • the size of the pupils can still be determined relatively precisely despite the distortion, for example if the size of the eye and iris are used as a reference or the spectacle distortion is calculated back.
  • the device according to the invention develops its greatest advantages if the measurement of the pupil size for age estimation is combined with further measured values in order to obtain redundancy and greater certainty of determination.
  • these additional measured values can come from the same video system as, for example, the hair color, deep skin folds on the face, rings under the eyes or the texture of the skin.
  • they can also come from other sensor systems. This could be, for example, the measurement of the driver's pulse by means of pressure sensors in the
  • Act steering wheel rim The pulse is slower in older people than in younger people.
  • Piezoelectric sensors which are arranged, for example, in the seats can also be used as pressure sensors.
  • the properties of the hands of the driver can be measured by sensors for measuring the electrical resistance, that is to say the skin resistance, between defined distances, for example 2 cm, the temperature and the contact pressure distribution on the steering wheel rim.
  • the electrical resistance that is to say the skin resistance
  • the temperature and the contact pressure distribution on the steering wheel rim can be measured.
  • at least a hint can be generated that refers to the age of the person.
  • Another possibility is to adjust the shift currents, i.e. the capacity between transmitting and receiving electrodes in the seat to be recorded in an electrical field.
  • the water content in the body can be inferred on the basis of the capacity measurement.
  • a lower capacity in the electrical field means a lower proportion of water and thus indicates an older person because the proportion of water in older people is usually only 60% compared to 90% in children.
  • the ratio of occupant weight to occupant stature can be determined. If this is below a limit value, you have another reference to an older person.
  • the measurement of the pupil size is, however, the most important component for determining the age.
  • the pupils may atypically be dilated for several hours due to medication, for example after a retinal examination by an ophthalmologist.
  • the pupil measurement alone would then lead to a wrong result with undesirable consequences, which are disadvantageous for old occupants, when activating the occupant protection system in the event of a crash.
  • FIG. 1 shows the device according to the invention as a block diagram.
  • An image generator 1 is connected to an evaluation module 2 via a data output.
  • the evaluation module 2 is connected to a first data input of a control unit 3, which has a processor.
  • a weight sensor 6, which determines the weight of a vehicle occupant in the seat, is connected to a second data input of the control device 3.
  • the control device 3 is used to control restraint devices, so that the control device 3 is connected to the restraint devices 4 via a data output.
  • the control unit 3 is connected to crash sensors 5 via a third data input in order to detect a crash. You can in the
  • precrash sensors or deformation sensors may also be present.
  • weight sensors 6, which can also be designed as a seat mat further sensors such as for recording the pulse of the person or electrical sensors for determining the skin impedance or the capacity of the person concerned are also possible.
  • the imager 1 is designed here as a stereo video sensor in order to determine the pupil size of the person concerned and their distance from an airbag cover by triangulation. This is carried out in particular by the evaluation module 2, which is designed here as a microcontroller.
  • the module 2 can also be arranged in the control unit 3 itself, for example only as software on a central processor in the control unit 3.
  • the control device 3 determines the age of the person concerned by means of the imaging device 1 and possibly further sensors, as shown above. In the event of a crash, the control unit 3 will then actuate the relevant airbag or belt tensioner in accordance with the age of the person, depending on this age determination.
  • FIG. 2 now shows a configuration of the device according to the invention in the vehicle.
  • the same components in turn have the same reference numerals.
  • the imager 1 is connected via the data output to the evaluation module 2, which in turn is connected to a first data input of the control unit 3.
  • a weight sensor 7 is connected to the data input of the control device 3 and is located in a seat cushion 9 of a vehicle seat.
  • a pressure sensor 8, which is provided for measuring the pulse frequency of the driver sitting on the seat, is connected to a third data input of the control device 3.
  • a pressure sensor 12 is connected to a fourth data input of the control unit 3 in order to
  • Steering wheel 11 to measure the driver's pulse.
  • an impedance measuring device 13 is also arranged in the steering wheel 11, which is connected to a fifth data input of the control device 3 in order to determine the impedance of the skin.
  • Other sensor types mentioned above can be used here. Less than the sensors shown here can also be used.
  • Sensors are installed.
  • an ultrasonic distance meter can also be used here.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Theoretical Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • General Physics & Mathematics (AREA)
  • Ophthalmology & Optometry (AREA)
  • Public Health (AREA)
  • Biomedical Technology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Veterinary Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Air Bags (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Automotive Seat Belt Assembly (AREA)
  • Image Processing (AREA)
  • Image Analysis (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

L'invention concerne un dispositif permettant de déterminer des données physiologiques et caractérisé en ce qu'il est conçu pour déterminer l'âge d'une personne. On utilise un capteur pour enregistrer les données physiologiques. Le dispositif est notamment configuré pour mesurer la taille des pupilles qui sont un bon paramètre pour définir l'âge d'une personne. De préférence, ce paramètre est mis en corrélation avec d'autres valeurs de mesure pour pouvoir déterminer l'âge sur une base sûre.
EP03720196A 2002-08-10 2003-03-18 Dispositif de determination de l'age d'une personne par la mesure de la taille de ses pupilles Withdrawn EP1537518A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10236769 2002-08-10
DE10236769A DE10236769A1 (de) 2002-08-10 2002-08-10 Vorrichtung zur Aufnahme physiologischer Daten wenigstens einer Person in einem Fahrzeug
PCT/DE2003/000871 WO2004019263A1 (fr) 2002-08-10 2003-03-18 Dispositif de determination de l'age d'une personne par la mesure de la taille de ses pupilles

Publications (1)

Publication Number Publication Date
EP1537518A1 true EP1537518A1 (fr) 2005-06-08

Family

ID=30469688

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03720196A Withdrawn EP1537518A1 (fr) 2002-08-10 2003-03-18 Dispositif de determination de l'age d'une personne par la mesure de la taille de ses pupilles

Country Status (6)

Country Link
US (1) US20060126901A1 (fr)
EP (1) EP1537518A1 (fr)
JP (1) JP2005535417A (fr)
CN (1) CN1647098A (fr)
DE (1) DE10236769A1 (fr)
WO (1) WO2004019263A1 (fr)

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DE10259546A1 (de) * 2002-12-19 2004-07-01 Robert Bosch Gmbh Vorrichtung zur drahtlosen Übertragung eines Auslösesignals
US8000505B2 (en) * 2004-09-01 2011-08-16 Eastman Kodak Company Determining the age of a human subject in a digital image
DE102005020847A1 (de) * 2005-05-02 2006-11-09 Carsten Dr. Koch Vorrichtung zur berührungslosen Positionsbestimmung von Körperteilen von Lebewesen im Kraftfahrzeug
DE102005022678A1 (de) * 2005-05-17 2006-11-23 Robert Bosch Gmbh Sicherheitssystem für ein Fahrzeug
JP4746405B2 (ja) * 2005-08-23 2011-08-10 ダイハツ工業株式会社 車両の保護手段制御構造
US7751340B2 (en) * 2006-11-03 2010-07-06 Microsoft Corporation Management of incoming information
US8437919B2 (en) * 2007-03-13 2013-05-07 GM Global Technology Operations LLC Vehicle personalization system
JP2010195139A (ja) * 2009-02-24 2010-09-09 Takata Corp 乗員拘束制御装置および乗員拘束制御方法
US9542847B2 (en) 2011-02-16 2017-01-10 Toyota Motor Engineering & Manufacturing North America, Inc. Lane departure warning/assistance method and system having a threshold adjusted based on driver impairment determination using pupil size and driving patterns
US20140122074A1 (en) * 2012-10-29 2014-05-01 Amit V. KARMARKAR Method and system of user-based jamming of media content by age category
CN103879313A (zh) * 2012-12-19 2014-06-25 北汽福田汽车股份有限公司 驾驶员座椅位置调整方法、系统以及车辆
DE102013021931A1 (de) 2013-12-20 2015-06-25 Audi Ag Tastenlos bedienbare Bedienvorrichtung
DE102014223629A1 (de) * 2014-11-19 2016-05-19 Bayerische Motoren Werke Aktiengesellschaft Kamera in einem Fahrzeug
US9778654B2 (en) 2016-02-24 2017-10-03 Toyota Motor Engineering & Manufacturing North America, Inc. Systems and methods for advanced resting time suggestion
US10660517B2 (en) * 2016-11-08 2020-05-26 International Business Machines Corporation Age estimation using feature of eye movement

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Also Published As

Publication number Publication date
US20060126901A1 (en) 2006-06-15
CN1647098A (zh) 2005-07-27
WO2004019263A1 (fr) 2004-03-04
DE10236769A1 (de) 2004-02-19
JP2005535417A (ja) 2005-11-24

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