WO2013123921A1 - Dispositif pour balayage sans contact et régression de champs de températures non stationnaires, en particulier dans des objets biologiques - Google Patents

Dispositif pour balayage sans contact et régression de champs de températures non stationnaires, en particulier dans des objets biologiques Download PDF

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Publication number
WO2013123921A1
WO2013123921A1 PCT/CZ2013/000019 CZ2013000019W WO2013123921A1 WO 2013123921 A1 WO2013123921 A1 WO 2013123921A1 CZ 2013000019 W CZ2013000019 W CZ 2013000019W WO 2013123921 A1 WO2013123921 A1 WO 2013123921A1
Authority
WO
WIPO (PCT)
Prior art keywords
environment parameter
ambient environment
regression
evaluation
linked
Prior art date
Application number
PCT/CZ2013/000019
Other languages
English (en)
Inventor
Jan IVANKA
Silvie BELASKOVA
Original Assignee
Tomas Bata University In Zlin
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 Tomas Bata University In Zlin filed Critical Tomas Bata University In Zlin
Priority to EP13716176.6A priority Critical patent/EP2839256A1/fr
Publication of WO2013123921A1 publication Critical patent/WO2013123921A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
    • G01J5/20—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using resistors, thermistors or semiconductors sensitive to radiation, e.g. photoconductive devices
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/01—Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue
    • A61B5/015—By temperature mapping of body part
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/0022—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation of moving bodies
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/80—Calibration
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J2005/0077—Imaging

Definitions

  • This invention is intended for the non-contact scanning and subsequent regression of non-stationary temperature fields - especially those of biological objects. Regression enables the retro-evaluation of the course of temperature change time of the object including the determination of the time of initiation of this process. This information is a very important factor that shows the time of death of humans or other living organisms. Therefore, the device is highly suitable and useful, especially for Forensic Criminology.
  • the body-temperature begins be on the decrease which, in essence, continues in an exponential curve dependent upon changes in the temperature gradients between the body itself and its surroundings, at first significantly and then gradually tapering-off in its time-court until the point where the temperature of the human body is equal to the temperature of the surrounding environment.
  • the body-temperature of a dead person during the getting cold-period is therefore, in Criminology, a fundamental factor and data, from which one can more-or-less precisely determine the moment of death of the given person.
  • Methods for determining the body temperature of the deceased used in everyday practice to-date are based upon the classic method of measuring temperature via the rectum.
  • the current state of knowledge and observations in this field correspond to the method based upon the so-called Hanssge Monogram, which requires several measurements of the body-core at the crime-scene, while at the same time taking measurements of temperatures in the biological object ' s surroundings.
  • this method has appreciable time constraints - upon discovery of a body, even though its temperature has not yet equalised itself with the ambient temperature, due to the stiffening of the corpse (rigor mortis) is this invasive method decidedly problematical for a certain period of time.
  • the above-mentioned disadvantages and insufficiencies of the current known systems for. are, to a very significant extent, eliminated by the device for non-contact scanning and subsequent regression of non- statiohary temperature fields, especially for biological objects, according to the invention.
  • the ground of the invention is that the device consists of a microbolometric matrix, an ambient environment parameter scanning unit and an evaluation unit, which is linked with the microbolometric matri and with ambient environment parameter scanning unit and equipped with a data-entry system of corrective parameters of the measured object.
  • the device for non-contact scanning and subsequent regression of non-stationary temperature field has advantageously incorporated such microbolometric matrix, which includes an evaluation unit for the evaluation of the frequency of individual temperatures and their time-dependencies. It is also advantageous that the ambient environment parameter scanning unit incorporates an ambient environment temperature scanner.
  • the device according to the invention may have the microbolometric matrix linked to the evaluation unit by card or cable.
  • the ambient environment parameter scanning unit may be linked to the evaluation unit either by Wi-Fi or cable.
  • the main advantage of the device, according to the invention is given by the fact itself that the system is based upon the non-contact measurement of biological object temperatures. For this reason, neither damage to tissue when using a robe for measurements nor damage to the body due to movements while inserting the probe nor even the elision of criminological clues are caused; nor are there such great time-constraints as there are with the currently known invasive method, whose applications are severely limited after a certain time-period in view of the progressive rigor mortis process and therefore problematical.
  • a further advantage is the ease-of-application of the device according to the invention since it does not require the cooperation of a doctor. Moreover, there is no need to correct the impact of phenomena associated with the evolution of gas in the digestive tract on temperature since the temperature is measured in a non-contact manner in areas uninfluenced by such.
  • Other essential correctional factors influencing the natural getting cold process of biological objects e.g. clothing, underlying terrain, body position, etc. are summarised in the data-entry system for correctional parameters.
  • a significant advantage of the device, according to the invention is above all the rapidity and substantive increasing of the precision of the regressive establishment of the time of initiation of the getting-cool process of the biological object.
  • the device according to the invention enables one to establish the time of initiation of the getting-cold process with a precision of up to 98%; thereby significantly increasing the key data's reliability - which, in Criminology, influences the success of further investigations in a fundamental way.
  • the non-contact scanning and subsequent regression of non-stationary temperature fields - concretely for biological objects - the human body - is composed of the microbolometric matrix i, the scanner unit 2, and the ambient environment parameter scanning and evaluation unit 3, which is linkted not only with the microbolometric matrix I , but also to the ambient environment scanner unit 2.
  • the evaluation unit 3 is equipped with the measured object correctional parameter data-entry system 4.
  • the microbolometric matrix I contains equipment for evaluating the frequency of individual temperatures and their time-dependencies.
  • the ambient environment scanner unit 2 contains an ambient environment temperature scanner 5.
  • the microbolometric matrix I is connected with the evaluation unit 3 by cable with a USB-port.
  • the ambient environment scanner unit 2 is connected by Wi-Fi to the evaluation unit 3.
  • the microbolometric matrix 1 - the herein presented device based on thermo-cameras - scans the temperature fields (radiated heat) of the human body abdominal cavity in the algor (rigor) mortis process and evaluates the frequency of individual temperatures and, subsequently, their local maximum and the actual time-course.
  • the device then performs a regression of the temperature field and evaluates the time of iniciation of its non-stationary phase (i.e. the beginning of the temperature drop).
  • the evaluation unit 3 takes into consideration not only which ambient environment parameter factors the scanner unit 2 registers, but also the factors supplied by means of the correctional parameter data-entry system 4 of the object being measured.
  • the device is composed of three main parts, which are easily storable and have small dimensions. It is possible to perform scans of the given investigated area from a distance of 20 to 90 cm away from the skin surface of the biological material without performing any locomotion of the body. The actual evaluation of the measured values and data, like determining the exact instant of death for instance, is performed within cca. 5 sec.
  • the device according to the invention for non-contact scanning and ' subsequent regression of non-stationary temperature fields, especially for biological objects, predominantly in Criminology, where the actual temperature of the dead person body within the time interval of the spontaneous getting cold process is the fundamental data for the retro- establishment of the, time of death of the given person.

Abstract

L'invention concerne un dispositif comprenant une matrice microbolométrique (1), un dispositif de balayage de paramètres environnementaux ambiants (2) ainsi qu'une unité d'évaluation et d'estimation (3) qui est reliée à la matrice microbolométrique et au dispositif de balayage de paramètres environnementaux ambiants et équipé d'une entrée de données (4) du système de correction de paramètres de l'objet mesuré. La matrice microbolométrique contient un équipement d'évaluation de la fréquence des températures individuelles et leurs durées. Le dispositif de balayage de paramètres environnementaux ambiants est de préférence équipé d'un dispositif de balayage de température environnementale ambiante. La matrice microbolométrique peut être reliée à l'unité d'estimation au moyen d'une carte ou d'un câble. Le dispositif de balayage de paramètres environnementaux ambiants peut être relié à l'unité d'évaluation et d'estimation par Wi-Fi ou par câble.
PCT/CZ2013/000019 2012-02-21 2013-02-21 Dispositif pour balayage sans contact et régression de champs de températures non stationnaires, en particulier dans des objets biologiques WO2013123921A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13716176.6A EP2839256A1 (fr) 2012-02-21 2013-02-21 Dispositif pour balayage sans contact et régression de champs de températures non stationnaires, en particulier dans des objets biologiques

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CZPV2012-124 2012-02-21
CZ20120124A CZ304073B6 (cs) 2012-02-21 2012-02-21 Zarízení k bezdotykovému snímání a regresi nestacionárních teplotních polí, zejména u biologických objektu

Publications (1)

Publication Number Publication Date
WO2013123921A1 true WO2013123921A1 (fr) 2013-08-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CZ2013/000019 WO2013123921A1 (fr) 2012-02-21 2013-02-21 Dispositif pour balayage sans contact et régression de champs de températures non stationnaires, en particulier dans des objets biologiques

Country Status (2)

Country Link
CZ (1) CZ304073B6 (fr)
WO (1) WO2013123921A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107014511A (zh) * 2017-05-15 2017-08-04 智能（厦门）传感器有限公司 一种不可直接接触的点热源温度测试方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040254472A1 (en) * 2003-05-27 2004-12-16 Cardiowave, Inc. Methods and apparatus for a remote, noninvasive technique to detect core body temperature in a subject via thermal imaging
US20080210872A1 (en) * 2003-08-11 2008-09-04 Opgal Ltd. Radiometry Using an Uncooled Microbolometer Detector

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10305146A1 (de) * 2003-01-17 2004-07-29 Lohbeck, Thorsten Thermographie-Gerät für tiermedizinische Anwendungen
US20120038778A1 (en) * 2010-08-11 2012-02-16 United States Of America, As Represented By The Secretary Of The Army Self-Scanning Passive Infrared Personnel Detection Sensor

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
US20040254472A1 (en) * 2003-05-27 2004-12-16 Cardiowave, Inc. Methods and apparatus for a remote, noninvasive technique to detect core body temperature in a subject via thermal imaging
US20080210872A1 (en) * 2003-08-11 2008-09-04 Opgal Ltd. Radiometry Using an Uncooled Microbolometer Detector

Non-Patent Citations (2)

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Title
AMMER K ET AL: "Application of thermal imaging in forensic medicine", IMAGING SCIENCE JOURNAL, THE, MANEY PUBLISHING, LONDON, GB, vol. 53, no. 2, 1 September 2005 (2005-09-01), pages 125 - 131, XP009170128, ISSN: 1368-2199, DOI: 10.1179/136821905X50361 *
KHALLAF. A. AND ROSSER, B. L.: "Thermographic Study of Postmortem Cooling of the Human Head: A Preliminary Report", THERMOLOGY, vol. 3, no. 1, 1988, pages 53 - 58, XP002698271 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107014511A (zh) * 2017-05-15 2017-08-04 智能（厦门）传感器有限公司 一种不可直接接触的点热源温度测试方法

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Publication number Publication date
CZ304073B6 (cs) 2013-09-25
CZ2012124A3 (cs) 2013-08-28

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