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Laser positioning method and hair removal system

A laser positioning and laser technology, applied in the field of image processing, can solve the problems of skin damage, reduce hair removal efficiency, easy to grow, and achieve the effect of improving efficiency, high precision, and reducing damaged area

Active Publication Date: 2017-11-10
SHANDONG UNIV OF FINANCE & ECONOMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional method of removing these body hairs is to use tweezers to pull out body hairs, which not only brings physical pain to people who love beauty, but also easily causes folliculitis; later there are various hair scrapers, although the operation is convenient and simple, but Body hair cannot be eradicated, and it is easy to grow back in a short period of time, and the more you scrape, the thicker it is; there are hair removal creams in the market, but these hair removal creams contain chemical products, which are harmful to the skin; recently, there is a permanent laser hair removal cream. Hair removal methods, especially the freezing point hair removal method, are the most popular, but this type of method acts on the entire area where hair follicles exist instead of a single hair follicle, which reduces the efficiency of hair removal

Method used

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  • Laser positioning method and hair removal system
  • Laser positioning method and hair removal system

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Embodiment 1

[0033] This embodiment provides a laser positioning method, such as figure 1 shown, including the following steps:

[0034] S1. Acquiring hair follicle images based on an infrared camera;

[0035] figure 2 It is an image of hair follicles taken by an infrared camera.

[0036] S2: Preprocessing the hair follicle image;

[0037] Described step S2 comprises:

[0038] S21. Correcting the hair follicle image;

[0039] Due to various errors of the camera in the process of component processing and assembly, the captured image often has distortion. In this embodiment, the Zhang Zhengyou plane calibration method is used to calibrate the infrared camera, and the internal parameters and external parameters of the camera are obtained to obtain the distortion coefficient. A distortion model is obtained, and the distortion image is corrected through the distortion model;

[0040] S22. Perform illumination normalization preprocessing on the corrected hair follicle image;

[0041] Whe...

Embodiment 2

[0058] Based on the laser positioning method provided in the above embodiments, the present invention also provides a laser hair removal system, including:

[0059] The laser hair removal device includes a laser source, an infrared camera, and an actuator, the infrared camera is used to acquire images of hair follicles; the actuator controls the light beam to lead to a corresponding position based on the calculated laser deflection angle to perform operations;

[0060] The laser positioning device is used to preprocess the acquired hair follicle image and detect corner points to obtain the coordinates of the hair follicle; calculate the deflection angle of the laser according to the coordinates of the hair follicle and the positional relationship between the hair follicle image and the laser hair removal device; The deflection angle is sent to the laser hair removal device.

[0061] Preferably, the actuator includes two movable slides A and B, the slide A can rotate left and r...

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Abstract

The invention discloses a laser positioning method. The method comprises the following steps: acquiring a hair follicle image based on an infrared camera; pre-processing the hair follicle image; detecting hair follicles in the image based on a corner detection algorithm, and acquiring coordinates of the hair follicles; and calculating a laser deflection angle according to the coordinates of the hair follicles, and a position relationship between the hair follicle image and a laser hair removal device. The laser positioning method provided by the invention detects the positions of the hair follicles based on infrared images of the hair follicles, and accurately controls lasers to lead to the positions of the hair follicles to execute the operation, which can not only ensure the recognition accuracy, but also can improve the hair removal efficiency.

Description

technical field [0001] The invention relates to the field of image processing and specifically designs a laser positioning method and hair removal system based on image recognition. Background technique [0002] With the development of society, people have become particularly picky about their pursuit of perfection, and they are more concerned about their own image, especially unwilling to expose their hair, such as: armpit hair, chest hair, beard, leg hair, etc. The traditional method of removing these body hairs is to use tweezers to pull out body hairs, which not only brings physical pain to people who love beauty, but also easily causes folliculitis; later there are various hair scrapers, although the operation is convenient and simple, but Body hair cannot be eradicated, and it is easy to grow back in a short period of time, and the more you scrape, the thicker it is; there are hair removal creams in the market, but these hair removal creams contain chemical products, w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/80G06T7/73G06T5/00
CPCG06T7/73G06T7/80G06T2207/30088G06T2207/20024G06T2207/10048G06T5/77
Inventor 杜宏伟张云峰周元峰刘宁刘梦迪
Owner SHANDONG UNIV OF FINANCE & ECONOMICS
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