SE2150896A1 - A device and a method for guiding a visually impaired person - Google Patents

A device and a method for guiding a visually impaired person

Info

Publication number
SE2150896A1
SE2150896A1 SE2150896A SE2150896A SE2150896A1 SE 2150896 A1 SE2150896 A1 SE 2150896A1 SE 2150896 A SE2150896 A SE 2150896A SE 2150896 A SE2150896 A SE 2150896A SE 2150896 A1 SE2150896 A1 SE 2150896A1
Authority
SE
Sweden
Prior art keywords
line
guiding
visually impaired
impaired person
image
Prior art date
Application number
SE2150896A
Inventor
David Piuva
Original Assignee
Visoont Ab
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 Visoont Ab filed Critical Visoont Ab
Priority to SE2150896A priority Critical patent/SE2150896A1/en
Publication of SE2150896A1 publication Critical patent/SE2150896A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H3/00—Appliances for aiding patients or disabled persons to walk about
    • A61H3/06—Walking aids for blind persons
    • A61H3/061—Walking aids for blind persons with electronic detecting or guiding means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/08—Devices or methods enabling eye-patients to replace direct visual perception by another kind of perception

Landscapes

  • Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Rehabilitation Therapy (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Pain & Pain Management (AREA)
  • Epidemiology (AREA)
  • Ophthalmology & Optometry (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Road Signs Or Road Markings (AREA)

Abstract

A device (1) for guiding a visually impaired person. The device comprises a laser unit (10) configured to project a laser line at a surface (5) to provide a projected laser line (11), a camera (20) configured to capture a first image of the surface, the first image comprising the projected laser line, and a processor (30). The processor is configured to extract the projected laser line from the first image to obtain an extracted line (31), determine that the surface comprises an obstacle (7) based on a parameter relating to the extracted line, the parameter being at least one of a straightness of the extracted line, continuity, and an angle, and cause a feedback device to provide feedback to the person in response to the parameter being above or below a predetermined threshold.
SE2150896A 2021-07-07 2021-07-07 A device and a method for guiding a visually impaired person SE2150896A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE2150896A SE2150896A1 (en) 2021-07-07 2021-07-07 A device and a method for guiding a visually impaired person

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2150896A SE2150896A1 (en) 2021-07-07 2021-07-07 A device and a method for guiding a visually impaired person

Publications (1)

Publication Number Publication Date
SE2150896A1 true SE2150896A1 (en) 2022-07-07

Family

ID=82799082

Family Applications (1)

Application Number Title Priority Date Filing Date
SE2150896A SE2150896A1 (en) 2021-07-07 2021-07-07 A device and a method for guiding a visually impaired person

Country Status (1)

Country Link
SE (1) SE2150896A1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100296076A1 (en) * 2009-05-20 2010-11-25 National Taiwan University Optical Blind-Guide Apparatus And Method Thereof
US20140191489A1 (en) * 2013-01-08 2014-07-10 National Taiwan University Early warning method and device for preventing wheelchair from tipping over
CN105662798A (en) * 2016-03-22 2016-06-15 昆山市工研院智能制造技术有限公司 Blind person navigation device based on laser and image processing and walking and obstacle avoidance method based on laser and image processing
US20160184169A1 (en) * 2011-07-20 2016-06-30 Kurt A. Goszyk Laser obstacle detector
US20170340484A1 (en) * 2016-05-26 2017-11-30 Shane Matthew GILLESPIE System for producing a depiction of an image
US20180078444A1 (en) * 2016-09-17 2018-03-22 Noah Eitan Gamerman Non-visual precision spatial awareness device.
EP3378461A1 (en) * 2017-03-22 2018-09-26 Vestel Elektronik Sanayi ve Ticaret A.S. A smart guide device for visually impaired person

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100296076A1 (en) * 2009-05-20 2010-11-25 National Taiwan University Optical Blind-Guide Apparatus And Method Thereof
US20160184169A1 (en) * 2011-07-20 2016-06-30 Kurt A. Goszyk Laser obstacle detector
US20140191489A1 (en) * 2013-01-08 2014-07-10 National Taiwan University Early warning method and device for preventing wheelchair from tipping over
CN105662798A (en) * 2016-03-22 2016-06-15 昆山市工研院智能制造技术有限公司 Blind person navigation device based on laser and image processing and walking and obstacle avoidance method based on laser and image processing
US20170340484A1 (en) * 2016-05-26 2017-11-30 Shane Matthew GILLESPIE System for producing a depiction of an image
US20180078444A1 (en) * 2016-09-17 2018-03-22 Noah Eitan Gamerman Non-visual precision spatial awareness device.
EP3378461A1 (en) * 2017-03-22 2018-09-26 Vestel Elektronik Sanayi ve Ticaret A.S. A smart guide device for visually impaired person

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
Akhlaqur et al: "An Efficient Smart Cane Based Navigation System for Visually Impaired People", International Symposium on Advanced Electrical and Communication Technologies ISAECT, 2019, pg. 1-6 *
Guo et al: "A novel obstacle detection method based on distortion of laser pattern", Proceedings - IEEE International Conference on Multimedia and Expo, 2016, vol. 2016-August, pg. 1-6 *
Kamal et al: "Towards developing walking assistants for the visually impaired people", IEEE Region 10 Humanitarian Technology Conference (R10-HTC), 2017, vol. 2018-January, pg. 238 - 241 *
Rao et al: "A vision-based system to detect potholes and uneven surfaces for assisting blind people", IEEE International Conference on Communications, 2016, pg. 1-6 *
Utaminingrum et al: "Development of computer vision based obstacle detection and human tracking on smart wheelchair for disabled patient", 5th International Symposium on Computational and Business Intelligence, 2017, pg. 1-5 *

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