Method and device for three-dimensionally positioning heads of human bodies and modeling scalp states

Abstract

The invention discloses a method and a device for three-dimensionally positioning heads of human bodies and modeling scalp states, and belongs to the field of head state detection. Magnetic field sources and magnetic detectors are arranged at the outer edges of meridian sagittal planes of the heads of the human bodies, the heads of the human bodies are arranged in magnetic fields, and positioningprobes and detection probes can be arranged, so that location information and state information of scalp positions can be determined, the heads of the human bodies can be three-dimensionally positioned and modeled, and the scalp states can be three-dimensionally modeled. The method and the device for three-dimensionally positioning the heads of the human bodies and modeling the scalp states have the advantages that the method and the device are simple in setting, easy and convenient to operate and high in accuracy and comprehensiveness, the scalp position positioning precision and the scalp state observation accuracy can be greatly enhanced, and influence of hair on detection positioning results can be prevented; the heads of the human bodies can be repeatedly positioned, accordingly, thecomprehensiveness, the fineness and the repeatability of scalp and hair data acquisition can be enhanced, and the method and the device have great popularization and application value.

Description

technical field [0001] The invention belongs to the field of head state detection, and in particular relates to a method and a device for three-dimensional positioning of a human head and scalp state modeling. Background technique [0002] With the improvement of people's living standards, people have higher requirements for hair health and beauty, and the demand for detection and evaluation of human scalp and hair status is also increasing. The detection of human head information or the treatment of human head often requires precise positioning of the human head. For example, when collecting information or data such as neurology, it is necessary to place EEG and functional near-infrared sensors on the human head. Ostensibly, the placement of these sensors needs to be precisely positioned on the head and be repeatable with respect to some standard coordinate system, which requires precise localization of human scalp regions. [0003] When detecting and evaluating the state ...

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Problems solved by technology

[0003] When detecting and evaluating the state of human scalp and hair, it is often necessary to regularly observe and measure the same area, or even the same hair follicle or the same hair. However, because the human scalp is covered with hair and the number is large, the distribution is dense, and the characteristics are not obvious, it is difficult to Accurate positioning, and in the field of hair detection technology, such as the use of scalp hair image analysis devices, hair scanning mirrors and hair follicle mirrors, it is often required to shave a certain area of ​​​​hair and observe it after a few days, it is difficult for unshaved areas Positioning, and it is impossible to track the scalp or hair follicles or hair status in the same area for a longer period of time, which has great limitations and cannot fully meet the comfort of the person to be tested

[0004] In addition, with the continuous improvement of people's economic level and the continuous reduction of equipment cost, people have more and more needs for customized headbands, fixed caps or wigs according to their own conditions, and these human head monitoring, treatment Devices or head wearable devices often require headbands, head fixing caps or positioning frames that can be firmly fixed on the head. The application of these devices or devices requires the three-dimensional shape of the human head, especially the scalp with hair attached However, different human heads have great differences in size, shape and form, and the technologies and methods for determining the above-mentioned information in the prior art are not mature enough to fully realize the accurate collection and accurate collection of human head information. Positioning; such as the optical non-contact measurement method commonly used in the prior art, it cannot effectively avoid the influence of hair when measuring the head. Swimming cap test, but it often causes more errors in the measurement results, affecting the accuracy and comprehensiveness of the test results, and the above-mentioned detection methods cannot effectively avoid the deterioration of image quality caused by head shaking during the measurement process problem, has a large use limitation

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