Sight tracking-based care demand identification method for old and disabled people

Abstract

The invention discloses a sight tracking-based care demand identification method for old and disabled people, the method comprises the following steps of: shooting an old person lying on a nursing bedin real time by adopting a high-definition camera, then selecting different frames of images from a shot video sequence, detecting face feature points by adopting a limited local model algorithm, andextracting eye regions; fitting an iris ellipse by adopting a random sampling consistency algorithm, and calculating an iris center point; estimating a head posture by adopting a head posture estimation algorithm, and solving a head rotation angle; and calculating the fixation point position of the elder by adopting a polynomial fitting algorithm, and identifying the nursing demand. According tothe invention, the position coordinates watched by the user can be accurately calculated from the image, so that the nursing requirements of the elderly and disabled people can be quickly and accurately obtained, and a more reliable care mode is provided for the crowd.

Description

technical field [0001] The invention relates to an image processing and recognition technology, in particular to a method for recognizing care needs of elderly disabled persons based on sight tracking. Background technique [0002] Since the 1970s, due to the influence of the family planning policy, the trend of aging in my country has become more and more serious. In the 21st century, with the acceleration of population aging and changes in lifestyle, the prevalence of the elderly is also increasing, and the number of disabled and partially disabled elderly continues to increase. At the same time, there are a huge number of disabled and paralyzed people due to accidents and car accidents every year, and these people also need to stay in bed for a long time. [0003] For the disabled elderly and disabled people lying on electric nursing beds, their mobility is inconvenient. Some people are often in a state of coma for a long time or cannot move a lot because of the restrain...

AI Technical Summary

Problems solved by technology

[0003] For the disabled elderly and disabled people lying on electric nursing beds, their mobility is inconvenient. Some people are often in a state of coma for a long time or cannot move much because of the restraint of medical equipment on the body

When such people have nursing needs such as eating, defecation, etc., due to incapacity or inability to express accurately due to slurred speech, medical nurses or children cannot accurately identify their needs through verbal communication, which will undoubtedly greatly reduce elderly disabilities. quality of life

[0004] In 2017, Abdallah Kassem and others in the United States studied a smart nursing bed that can control the movement of patients through voice-controlled mobile phone applications. However, this type of nursing bed uses voice recognition to recognize user needs. Not a good option for patients

Later, some scholars proposed to recognize user needs based on gestures, but this requires the user's hands to be able to move flexibly, which is also impractical for patients who cannot move.

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