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WO2018111069A1 - Procédé d'identification de lésions cutanées provoquées par l'acné à partir d'une capture d'images multispectrales avec refroidissement préalable - Google Patents

Procédé d'identification de lésions cutanées provoquées par l'acné à partir d'une capture d'images multispectrales avec refroidissement préalable Download PDF

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Publication number
WO2018111069A1
WO2018111069A1 PCT/MX2016/000146 MX2016000146W WO2018111069A1 WO 2018111069 A1 WO2018111069 A1 WO 2018111069A1 MX 2016000146 W MX2016000146 W MX 2016000146W WO 2018111069 A1 WO2018111069 A1 WO 2018111069A1
Authority
WO
WIPO (PCT)
Prior art keywords
lesions
acne
different
face
multispectral
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.)
Ceased
Application number
PCT/MX2016/000146
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English (en)
Spanish (es)
Inventor
Brayan Gamaniel CASTRO BALDENEBRO
José Fernando TORRES VALLEJO
Hiram GUTIÉRREZ LIZÁRRAGA
Dino Alejandro PARDO GUZMÁN
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to PCT/MX2016/000146 priority Critical patent/WO2018111069A1/fr
Publication of WO2018111069A1 publication Critical patent/WO2018111069A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/02—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by cooling, e.g. cryogenic techniques
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Measuring devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis

Definitions

  • the present invention has its preponderant field of application in the identification of skin lesions caused by acne for subsequent treatment.
  • Acne is the most common skin condition that affects millions of people worldwide, it is a skin disease that affects more than 85% of teenagers and young adults. Patients with severe acne frequently face significant psychological and emotional problems due to scarring associated with the disease.
  • “Acne” means all forms of lesions or types of acne, especially simple acne, comedonic acne, papulo-pustula acne and many other types.
  • Light technologies visible, infrared and UV have been developed for several years for the treatment of acne, where different wavelengths and exposure times are applied.
  • the present invention aims at an infrared light reading method to identify different types of acne lesions. The following patents are presented below in relation to the subject in order to compare them with the present invention.
  • a method that implements cryogen spraying and irradiation with light (infrared) to create a pattern of cooled regions in a tissue for dermatological cosmetic treatment is described in US20070118098.
  • the patent is intended to identify areas with lesions but does not identify the type of injury caused by acne.
  • a method and apparatus are described in accordance with the patent description WO2016003561, where a skin image illuminated with a blue light is captured through a green filter. The captured image is processed and analyzed later to detect the presence of microcomedones. Fluorescent spots are detected in the corrected image indicative of acne, including microcomedones Not visible to the naked eye.
  • the above patent is limited in the identification of a single form of acne lesion.
  • EP1433418 a method and an apparatus for identifying imperfections in the facial skin are described. It includes placement of ultraviolet and visible images in a computer program and process the images to locate areas of skin that require preventive treatment including those with skin damage.
  • US7738032 details a portable autonomous device and a corresponding method for capturing, visualizing and analyzing images of a person, by means of a digital camera and a light source capable of providing at least two different wavelengths of light, in order of identifying acne on the skin.
  • the previous patents use UV light, to avoid the harmful effects to the skin UV filters are added that only emit light in wavelength of 320-400 nm, these patents suffer from not having the identification of the type of lesion.
  • patent No. US8562657 provides a method for identifying areas of lesions. The method is based on the application of a photosensitive material to the skin and exposing the skin to light or other electromagnetic energy to cause a reaction or conversion of the photosensitive material.
  • Figure 1 is a schematic diagram of the stages of the acne lesion identification system of the present invention.
  • Figure 2 an example of the normalized reflective artery curves projected in orthogonal subspace to the specular component, for three different types of acne lesions.
  • Figure 1 shows the steps of the data preprocessing steps [Block 1] and injury classification [Block 6] running the computer of the patented system. It starts from the analysis of different multispectral images [Block 2], captured during the temperature variation of the face, to obtain the relative reflectance image [Block 3]. Next, the normalization of the reflectance image projected orthogonally to the specular reflection is obtained [Block 4]. At the end of the preprocessing stage [Block 1] the differentiation of hair, normal skin and facial background [Block 5] is achieved.
  • the computer executes different combinations of Discriminant linear functions [Block 7] to determine if the conditions detected correspond to reddish papules [Block 8], pustules [Block 9] or scars [Block 10].
  • Figure 2 shows the representation of the record of the normalized reflectance projected in orthogonal subspace to the specular component of the multispectral images of different lesions in absorbency units (a.u.).
  • the execution of the different combinations of discriminant linear functions achieve the identification and classification of types of lesions present.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Surgery (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Pathology (AREA)
  • Biophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Otolaryngology (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

La présente invention concerne un procédé d'identification de diverses lésions cutanées possibles provoquées par l'acné par le biais d'un système optique et d'une variation de température induite. Il comprend une étape de prétraitement d'images multispectrales correspondant à l'obtention de la normalisation de l'image de réflectance projetée orthogonalement à la composante spéculaire.
PCT/MX2016/000146 2016-12-15 2016-12-15 Procédé d'identification de lésions cutanées provoquées par l'acné à partir d'une capture d'images multispectrales avec refroidissement préalable Ceased WO2018111069A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/MX2016/000146 WO2018111069A1 (fr) 2016-12-15 2016-12-15 Procédé d'identification de lésions cutanées provoquées par l'acné à partir d'une capture d'images multispectrales avec refroidissement préalable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/MX2016/000146 WO2018111069A1 (fr) 2016-12-15 2016-12-15 Procédé d'identification de lésions cutanées provoquées par l'acné à partir d'une capture d'images multispectrales avec refroidissement préalable

Publications (1)

Publication Number Publication Date
WO2018111069A1 true WO2018111069A1 (fr) 2018-06-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/MX2016/000146 Ceased WO2018111069A1 (fr) 2016-12-15 2016-12-15 Procédé d'identification de lésions cutanées provoquées par l'acné à partir d'une capture d'images multispectrales avec refroidissement préalable

Country Status (1)

Country Link
WO (1) WO2018111069A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009145735A1 (fr) * 2008-05-29 2009-12-03 National University Of Singapore Procédé d'analyse d'images de la peau utilisant une région de référence dans le but de diagnostiquer un trouble cutané
US20140364745A1 (en) * 2007-11-26 2014-12-11 Canfield Scientific, Incorporated Multi-spectral tissue imaging
US20150216719A1 (en) * 2014-01-31 2015-08-06 Zeltiq Aesthetics, Inc Treatment systems and methods for treating cellulite and for providing other treatments
WO2015117005A1 (fr) * 2014-01-31 2015-08-06 The General Hospital Corporation Dispositif de refroidissement pour perturber le fonctionnement des glandes sébacées
US20150313532A1 (en) * 2007-01-05 2015-11-05 Sava Marinkovich Method and system for managing and quantifying sun exposure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150313532A1 (en) * 2007-01-05 2015-11-05 Sava Marinkovich Method and system for managing and quantifying sun exposure
US20140364745A1 (en) * 2007-11-26 2014-12-11 Canfield Scientific, Incorporated Multi-spectral tissue imaging
WO2009145735A1 (fr) * 2008-05-29 2009-12-03 National University Of Singapore Procédé d'analyse d'images de la peau utilisant une région de référence dans le but de diagnostiquer un trouble cutané
US20150216719A1 (en) * 2014-01-31 2015-08-06 Zeltiq Aesthetics, Inc Treatment systems and methods for treating cellulite and for providing other treatments
WO2015117005A1 (fr) * 2014-01-31 2015-08-06 The General Hospital Corporation Dispositif de refroidissement pour perturber le fonctionnement des glandes sébacées

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