Method and device for assisting read-write posture judgment by using laser point cloud face recognition

Abstract

The invention provides a method and a device for assisting read-write posture judgment by using laser point cloud face recognition. The method comprises the following steps: inputting a face basic image of a wearer into a smart watch provided with an acceleration sensor, a gyroscope and a laser imaging module; carrying out real-time posture detection on the wearer by adopting an acceleration sensor and a gyroscope, and determining that the wearer enters a read-write state and a read-write sitting posture of the wearer; constructing a three-dimensional coordinate system by taking the smart watch as an original point, acquiring a three-dimensional point cloud image through a laser imaging module, comparing the three-dimensional point cloud image with a face basic image for face recognition, and determining a face coordinate position of a wearer; and obtaining distance data between the smart watch and the face of the wearer through coordinate analysis, and determining whether the read-write posture of the wearer is compliant in combination with the read-write sitting posture and the distance data. A laser point cloud face recognition device for reading and writing posture judgment comprises a laser imaging module, a comparison module, a coordinate positioning module and an operation module, and laser imaging and face recognition are achieved.

Description

technical field [0001] The invention relates to the technical field of laser point cloud and face recognition, in particular to a method and device for assisting reading and writing attitude judgment by using laser point cloud face recognition. Background technique [0002] The problem of juvenile myopia has attracted great attention from people of insight in the whole society. The increasing incidence of myopia among students is a worldwide problem. The highest incidence of myopia is in Asia. According to statistics in my country, the total number of myopia exceeds 300 million people, which is 1 / 3 of the world's total myopia population, and the number of young people with myopia ranks first in the world. In our country, the myopia rate of students is increasing year by year, almost at a rate of 10% per year. In many cities, the first, second, and third grades of junior middle schools are respectively about 50%, 60%, and 70%. The myopia rate of college entrance examination ...

AI Technical Summary

Problems solved by technology

Due to the complexity of people's activities and the diversity of similar actions, although the invention adopts some technical means to improve the accuracy of reading and writing sitting posture judgments, there is still a certain range of misjudgments that inevitably occur, so for reading and writing sitting postures Judgment accuracy still needs to be further improved

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